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Roberto Kremer - One of the best experts on this subject based on the ideXlab platform.
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Effect of season and staple length on wool colour in Corriedale
2009Co-Authors: K. Neimaur, I. Sienra, Roberto KremerAbstract:Wool scoured colour is one of the features that must be improved in Uruguayan Corriedale wool. Yellow discolouration is the main problem and it is related to environmental conditions and individual susceptibility. The objective of this trial was to estimate the effect of season and staple length on wool colour through the application of an incubation technique in a Corriedale flock. 63 hoggets were sampled each 6 months during 2 years. 4 treatments were carried out considering staple length (short and long wool staples) and sampling season (winter or summer). A raw wool incubation technique was applied to predict coloration and pre incubation and post incubation clean wool colours (Y-Z) were determined. The results showed a significant increase in post incubation wool colour (Y-Z= 6.98 ± 1.93) with respect to pre incubation colour (Y-Z= 1.88 ± 1.72). The samples extracted in winter with short staple developed a significant lower colour (Y-Z = 5.69 ± 2.00) than those extracted in summer with 12 months growth (Y-Z = 8.93 ± 2.11) (P
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effect of season and staple length on wool colour in Corriedale
International Journal of Sheep and Wool Science; Vol 57 No 1 (2009), 2009Co-Authors: K. Neimaur, I. Sienra, Roberto KremerAbstract:Wool scoured colour is one of the features that must be improved in Uruguayan Corriedale wool. Yellow discolouration is the main problem and it is related to environmental conditions and individual susceptibility. The objective of this trial was to estimate the effect of season and staple length on wool colour through the application of an incubation technique in a Corriedale flock. 63 hoggets were sampled each 6 months during 2 years. 4 treatments were carried out considering staple length (short and long wool staples) and sampling season (winter or summer). A raw wool incubation technique was applied to predict coloration and pre incubation and post incubation clean wool colours (Y-Z) were determined. The results showed a significant increase in post incubation wool colour (Y-Z= 6.98 ± 1.93) with respect to pre incubation colour (Y-Z= 1.88 ± 1.72). The samples extracted in winter with short staple developed a significant lower colour (Y-Z = 5.69 ± 2.00) than those extracted in summer with 12 months growth (Y-Z = 8.93 ± 2.11) (P<0.01). Season of shearing and length of wool affect wool yellowness in this Corriedale flock.
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producao e composicao quimica do leite de ovelhas Corriedale com diferentes niveis de suplementacao aos 100 dias de lactacao
Current Agricultural Science and Technology, 2008Co-Authors: Gladis Ferreira Correia, Roberto Kremer, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, Fernando Perdigon, Lucy Sosa, Joao Gilberto Correa Da Silva, Paulo Rodinei Soares LopesAbstract:Este experimento foi desenvolvido no campo experimental no. 1, da Faculdade de Veterinaria de Montevideu da Universidade da Republica Oriental do Uruguai. O objetivo foi comparar a producao e a composicao do leite ordenhado mecanicamente, produzido pelo genotipo Corriedale , com e sem suplementacao no periodo de ordenha. Foram utilizados animais da raca Corriedale , ordenhados duas vezes ao dia, de setembro a dezembro de 2004, sendo realizados no total cinco controles leiteiros com intervalo de vinte e um dias. As amostras, para composicao quimica, foram obtidas em partes iguais das ordenhas matutinas e vespertinas, e analisadas pela Cooperativa de Laboratorios Veterinarios de Colonia. A alimentacao durante o periodo de ordenha foi pastagem cultivada consorciada de azevem ( Lolium multiflorum Lam ), trevo branco ( Trifolium repens L.) e cornichao (Lotus corniculatus L.), com disponibilidade media de 4,1 tMS /ha-1. Alem da pastagem, um grupo de animais foi suplementado com racao comercial. A producao de leite (kg) e componentes quimicos (g) corrigida para os 100 dias de lactacao foram analisados pelo proc GLM. Foi observado efeito para as producoes de leite (kg), gordura, proteina e lactose (g) corrigidas para os 100 dias de lactacao, para a variavel nivel de suplementacao (P>0,05), com valores medio de 57,010 e 50,310 kg para a producao de leite, 46,0 e 38,5 g para a gordura, 31,5 e 26,4 g para proteina e 28,6 e 24,9 g para producao de lactose, respectivamente, para os grupos suplementado e nao suplementado. A raca Corriedale demonstrou potencial produtivo, mesmo frente a adversidades . Palavras-chave: Aptidao leiteira ovina, componentes do leite ovino, ovinos leiteiros . ABSTRACT This experiment was carried out at the experimental field n.1 of the Veterinary School of Montevideo, Uruguay. The objective was compare milk yield and composition of machine-milked produced by Corriedale genotype with and without supplementation during the milking period and to analyze yield and chemical composition of milk along the year. Corriedale animals were used, milked twice daily, from September to December of 2004, with five milking controls being made at 21-days interval. Samples for chemical composition assessment were obtained in equal parts from morning and afternoon milkings and analyzed by the Cooperativa de Laboratorios Veterinarios de Colonia . During the milking period animals were kept in a cultivated mixed pasture of italian ryegrass ( Lolium multiflorum Lam.), white clover ( Trifolium repens L.) and birdsfoot trefoil (Lotus corniculatus L.) with an average of 4.1 tDM/ha-1 availability. Besides the pasture, a group of Corriedale animals were supplemented with commercial ration. For the evaluation of milk production (kg) and chemical components (g) corrected for 100 days of lactation the GLM proc was used. Significant difference occurred for milk production (kg), fat, protein and lactose (g), corrected for 100 days of lactation an effect of supplementation (P>0,05) with average values of 57.010 and 50.310 kg for milk yield, 46.0 and 38.5 g for fat, 31.5 and 26.4 g for protein and 28.6 and 24.9 g for lactose yield, respectively. Corriedale sheep breed demonstrated productive potential even confronted to adversities. Key-words: sheep milk components, sheep milk, sheep milking aptitude.
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PRODUÇÃO E COMPOSIÇÃO QUÍMICA DO LEITE DE OVELHAS Corriedale E CRUZAS MILCHSCHAF YIELD AND CHEMICAL MILK COMPOSITION OF Corriedale SHEEP AND MILCHSCHAF CROSSES
2008Co-Authors: Gladis Ferreira Correa, Roberto Kremer, Maria Teresa Moreira Osorio, Fernando Perdigon, Lucy Sosa, Silveira Osório, João Gilberto, Corrêa Da SilvaAbstract:This study was carried out at Campo Experimental no 1 (Veterinary Medicine School – Montevideo, ROU), to evaluate the production and chemical composition of milk from different sheep genotypes. Thirty three (33) Corriedale breed sheep, 43 F1 (Corriedale x Milchschaf) crosses and 23 F2 (F1 x Milchschaf), were milked from September to December 2002, from the 6th lactation onwards, totalizing five milking controls, with 21-days intervals. Milk samples were analysed at Cooperativa de Laboratorios Veterinarios de Colonia (COLAVECO) to determine contets of fat, protein and lactose. Animals were maintained in a raygrass x white clover x birdsfoot trefoil, pasture mixture, with a forage availability of 2.1 tDM ha-1. A split plot complete randomized desing was used. Interaction occurred between genotypes and lactation weeks. Significant difference was observed among genotypes for milk prodution (L/dia) and contents of fat and lactose in the 12th week and no difference for protein. In the 6th lactation week there was no difference among genotypes for all parameters. There was significant difference among lactation weeks when each genotype was evaluated separately. Corriedale breed constitutes a crossing alternative with specialized milk breeds, in order to associate increment in production with adaptability.
Maria Teresa Moreira Osorio - One of the best experts on this subject based on the ideXlab platform.
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caracteristicas da carcaca e da carne de cordeiros Corriedale manejados em duas alturas de milheto
Archivos De Zootecnia, 2013Co-Authors: Jaqueline Schneider Lemes, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, S S Gonzaga, Luciane Da Silva Martins, R M G Esteves, R I LehmenAbstract:The objective of this study was to evaluate the carcass characteristics and meat quality of Corriedale lambs subjected to two grazing height on millet. The lamb"s termination was done in summer annual pasture on a common cultivar of millet (Pennisetum americanum (L.) Leeke). The treatments consisted of two grazing heights, 20 and 40 cm. The slaughter was based on body condition between 2 and 3 (1 to 5 scale). Quantitative and qualitative evaluations were carried out on carcass and meat. The conformation demonstrated great relation with fattening status. There was no difference between subjective characteristics of color and texture. However marbling index values were higher (p<0.01), when lambs grazed on 20 cm height millet. In conclusion, there is neither difference between carcass characteristics and instrumental meat evaluations, nor difference in tissue components of the shoulder in Corriedale lambs subjected to different grazing heights on millet. However, the height of grazing affects the marbling score.
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temperamento e comportamento materno filial de ovinos das racas Corriedale e ideal e sua relacao com a sobrevivencia dos cordeiros
Ciencia Rural, 2008Co-Authors: Carmen Lucia De Souza Rech, Maria Teresa Moreira Osorio, Jose Luiz Rech, Vivian Fischer, Nelson Manzoni, Heden Luiz Marques Moreira, Isabella Dias Barbosa Silveira, Adriana Kroef TaroucoAbstract:ABSTRACT The trial was conducted at the ExperimentalStation of Embrapa, Bage, RS, from March 2005 to February2006, and aimed to evaluate the maternal behavior andtemperament of ewes and their lambs and related them withlamb’s survival. Forty-seven Corriedale ewes with mean bodyweight of 52.1kg and 45 Pollwarth ewes with mean body weightof 49.5kg were used, according to a completely randomizeddesign. Temperament was evaluated through maternalbehaviour score (MBS), flight time test (score and quantitative)and flight distance. Corriedale ewes presented larger values forflight time score than Pollwarth ewes. Corriedale lambs wereheavier and a greater number survived than Pollwarth lambs.Sheep breed did not affect maternal score. Ewes consideredreactive (MBS=1, those who run away and did not come backto stay with their lamb) seek less isolation from the herd atparturition, protected less their lambs, weaned them earlierand lighter than less reactive ewes. Reactivity decreasedmaternal care of ewes with its lambs, and this characteristicmight be considered by productive systems.
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producao e composicao quimica do leite de ovelhas Corriedale com diferentes niveis de suplementacao aos 100 dias de lactacao
Current Agricultural Science and Technology, 2008Co-Authors: Gladis Ferreira Correia, Roberto Kremer, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, Fernando Perdigon, Lucy Sosa, Joao Gilberto Correa Da Silva, Paulo Rodinei Soares LopesAbstract:Este experimento foi desenvolvido no campo experimental no. 1, da Faculdade de Veterinaria de Montevideu da Universidade da Republica Oriental do Uruguai. O objetivo foi comparar a producao e a composicao do leite ordenhado mecanicamente, produzido pelo genotipo Corriedale , com e sem suplementacao no periodo de ordenha. Foram utilizados animais da raca Corriedale , ordenhados duas vezes ao dia, de setembro a dezembro de 2004, sendo realizados no total cinco controles leiteiros com intervalo de vinte e um dias. As amostras, para composicao quimica, foram obtidas em partes iguais das ordenhas matutinas e vespertinas, e analisadas pela Cooperativa de Laboratorios Veterinarios de Colonia. A alimentacao durante o periodo de ordenha foi pastagem cultivada consorciada de azevem ( Lolium multiflorum Lam ), trevo branco ( Trifolium repens L.) e cornichao (Lotus corniculatus L.), com disponibilidade media de 4,1 tMS /ha-1. Alem da pastagem, um grupo de animais foi suplementado com racao comercial. A producao de leite (kg) e componentes quimicos (g) corrigida para os 100 dias de lactacao foram analisados pelo proc GLM. Foi observado efeito para as producoes de leite (kg), gordura, proteina e lactose (g) corrigidas para os 100 dias de lactacao, para a variavel nivel de suplementacao (P>0,05), com valores medio de 57,010 e 50,310 kg para a producao de leite, 46,0 e 38,5 g para a gordura, 31,5 e 26,4 g para proteina e 28,6 e 24,9 g para producao de lactose, respectivamente, para os grupos suplementado e nao suplementado. A raca Corriedale demonstrou potencial produtivo, mesmo frente a adversidades . Palavras-chave: Aptidao leiteira ovina, componentes do leite ovino, ovinos leiteiros . ABSTRACT This experiment was carried out at the experimental field n.1 of the Veterinary School of Montevideo, Uruguay. The objective was compare milk yield and composition of machine-milked produced by Corriedale genotype with and without supplementation during the milking period and to analyze yield and chemical composition of milk along the year. Corriedale animals were used, milked twice daily, from September to December of 2004, with five milking controls being made at 21-days interval. Samples for chemical composition assessment were obtained in equal parts from morning and afternoon milkings and analyzed by the Cooperativa de Laboratorios Veterinarios de Colonia . During the milking period animals were kept in a cultivated mixed pasture of italian ryegrass ( Lolium multiflorum Lam.), white clover ( Trifolium repens L.) and birdsfoot trefoil (Lotus corniculatus L.) with an average of 4.1 tDM/ha-1 availability. Besides the pasture, a group of Corriedale animals were supplemented with commercial ration. For the evaluation of milk production (kg) and chemical components (g) corrected for 100 days of lactation the GLM proc was used. Significant difference occurred for milk production (kg), fat, protein and lactose (g), corrected for 100 days of lactation an effect of supplementation (P>0,05) with average values of 57.010 and 50.310 kg for milk yield, 46.0 and 38.5 g for fat, 31.5 and 26.4 g for protein and 28.6 and 24.9 g for lactose yield, respectively. Corriedale sheep breed demonstrated productive potential even confronted to adversities. Key-words: sheep milk components, sheep milk, sheep milking aptitude.
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PRODUÇÃO E COMPOSIÇÃO QUÍMICA DO LEITE DE OVELHAS Corriedale E CRUZAS MILCHSCHAF YIELD AND CHEMICAL MILK COMPOSITION OF Corriedale SHEEP AND MILCHSCHAF CROSSES
2008Co-Authors: Gladis Ferreira Correa, Roberto Kremer, Maria Teresa Moreira Osorio, Fernando Perdigon, Lucy Sosa, Silveira Osório, João Gilberto, Corrêa Da SilvaAbstract:This study was carried out at Campo Experimental no 1 (Veterinary Medicine School – Montevideo, ROU), to evaluate the production and chemical composition of milk from different sheep genotypes. Thirty three (33) Corriedale breed sheep, 43 F1 (Corriedale x Milchschaf) crosses and 23 F2 (F1 x Milchschaf), were milked from September to December 2002, from the 6th lactation onwards, totalizing five milking controls, with 21-days intervals. Milk samples were analysed at Cooperativa de Laboratorios Veterinarios de Colonia (COLAVECO) to determine contets of fat, protein and lactose. Animals were maintained in a raygrass x white clover x birdsfoot trefoil, pasture mixture, with a forage availability of 2.1 tDM ha-1. A split plot complete randomized desing was used. Interaction occurred between genotypes and lactation weeks. Significant difference was observed among genotypes for milk prodution (L/dia) and contents of fat and lactose in the 12th week and no difference for protein. In the 6th lactation week there was no difference among genotypes for all parameters. There was significant difference among lactation weeks when each genotype was evaluated separately. Corriedale breed constitutes a crossing alternative with specialized milk breeds, in order to associate increment in production with adaptability.
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REGIONAL AND TISSUE COMPOSITION OF Corriedale LAMB CARCASSES IN THREE RAISING SYSTEMS
2008Co-Authors: Rodrigo Dessesards Jardim, Maria Teresa Moreira Osorio, Sérgio Silveira Gonzaga, Roger EstevesAbstract:The objective of the study was to compare regional and tissue composition of cuts of the fore and hind legs of lamb carcasses of the Corriedale breed. Fifty one non castrated lambs of the Corriedale breed, were raised under three different production systems, with the following characteristics: System 1 – fourteen lambs were raised on natural pasture, where Paspalum notatum Flugge and Axonopus affinis Chase were the predominant forage, weaned at 70 days of age and slaughtered at 138 days old; System 2 – twenty seven lambs raised on a cultivated pasture which had oats, white clover and birds foot trefoil in its composition, weaned at 52 days of age and slaughtered at 125 days old, and System 3 – ten lambs raised in a feedlot, fed a complete feed mixture in a proportion of 60:40 of silage (sorghum silage) / concentrate (soybean meal, ground corn, dicalcium phosphate and calcitic lime); they were weaned at 60 days of age and slaughtered at 110 days old. The criteria to the slaughter to occur was body condition score. Results show that there were significant differences (P
Jean-marie Godeau - One of the best experts on this subject based on the ideXlab platform.
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Effects of late pregnancy and early lactation on renal urea handling in Corriedale ewes
The Journal of Agricultural Science, 1998Co-Authors: Bb Ndibualonji, M. N. Rodriguez, A. Cirio, D. Dehareng, Jean-marie GodeauAbstract:The aim of the study was to investigate the changes in renal function in late pregnant and early lactating Corriedale ewes. Compared with the non-productive state, plasma urea concentration was increased by 67% during pregnancy, whereas it decreased by 36% during lactation. Urine flow, urea clearance, renal plasma flow and glomerular filtration rate were significantly reduced (P < 0.05) during both late pregnancy and early lactation. Filtered load of urea and the amount of urea eliminated were significantly reduced (P < 0.05) only in lactating ewes. No changes were noted in the fractional excretion of urea, the filtration fraction and the urine osmolality during both late pregnancy and early lactation. It was concluded that, as in other breeds, Corriedale ewes can adapt to increased nitrogen requirements during late pregnancy, and especially during early lactation, by increasing the renal conservation of urea. Unlike other breeds, however, Corriedale ewes restrict the urine urea losses mainly by reducing renal plasma flow and glomerular filtration rate, without any modification of the tubular reabsorption of urea during both late pregnancy and early lactation.
Roger Esteves - One of the best experts on this subject based on the ideXlab platform.
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REGIONAL AND TISSUE COMPOSITION OF Corriedale LAMB CARCASSES IN THREE RAISING SYSTEMS
2008Co-Authors: Rodrigo Dessesards Jardim, Maria Teresa Moreira Osorio, Sérgio Silveira Gonzaga, Roger EstevesAbstract:The objective of the study was to compare regional and tissue composition of cuts of the fore and hind legs of lamb carcasses of the Corriedale breed. Fifty one non castrated lambs of the Corriedale breed, were raised under three different production systems, with the following characteristics: System 1 – fourteen lambs were raised on natural pasture, where Paspalum notatum Flugge and Axonopus affinis Chase were the predominant forage, weaned at 70 days of age and slaughtered at 138 days old; System 2 – twenty seven lambs raised on a cultivated pasture which had oats, white clover and birds foot trefoil in its composition, weaned at 52 days of age and slaughtered at 125 days old, and System 3 – ten lambs raised in a feedlot, fed a complete feed mixture in a proportion of 60:40 of silage (sorghum silage) / concentrate (soybean meal, ground corn, dicalcium phosphate and calcitic lime); they were weaned at 60 days of age and slaughtered at 110 days old. The criteria to the slaughter to occur was body condition score. Results show that there were significant differences (P
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relacao entre medidas in vivo e na carcaca em cordeiros Corriedale
Revista da FZVA, 2007Co-Authors: Jose Luiz Garcia Quadro, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, Gilson De Mendonca, Eunice De Leon Rota, Michele Goncalves, Roger EstevesAbstract:O presente trabalho objetivou estimar as relacoes entre o animal ''in vivo'' e a carcaca, quantificando as caracteristicas de interesse comercial, os componentes do peso vivo, a composicao regional e tecidual da carcaca de 60 cordeiros machos sendo 30 castrados e 30 nao castrados da raca Corriedale, criados em campo nativo. O experimento foi realizado na Fazenda Santa Tereza, localizada no municipio de Santa Vitoria do Palmar-RS, em sua fase de campo e no Laboratorio de carcacas e carnes do Departamento de Zootecnia da Faculdade de Agronomia Eliseu Maciel, em sua fase laboratorial. Os cordeiros foram abatidos em tres idades 120, 210 e 360 dias de idade. As variaveis estudadas foram: conformacao “in vivo”, condicao corporal, comprimento corporal, perimetro toracico, altura do anterior, compacidade corporal, peso corporal ao abate. E apos o abate, conformacao da carcaca, comprimento interno da carcaca (medida L), peso de carcaca quente e fria, rendimento verdadeiro, rendimento comercial, estado de engorduramento. Na composicao regional, peso e percentagem do pescoco, paleta, costilhar e perna. Na composicao tecidual peso e percentagem de osso, musculo e gordura da paleta e perna. Concluindo-se que as medidas tomadas “in vivo” podem ser de grande valia para estimar as caracteristicas da carcaca em cordeiros Corriedale castrados e nao castrados criados em campo nativo. Palavras-chave: Ovinos, conformacao, composicao regional, composicao tecidual. ABSTRACT This work aimed to estimate the correlation of live animals and their carcasses. The characteristics of commercial concern, the live weight components and the regional and tissue compound of 60 Corriedale lambs – 30 wedder and 30 not wedder – were quantified. The animals where bred on grazing conditions where. The field part of the experiment took place at Santa Tereza farm, at Santa Vitoria do Palmar – RS and the laboratorial phase at the laboratory of flesh and carcasses in the Departamento de Zootecnia of Faculdade de Agronomia Eliseu Maciel. Lambs were slaughtered at three different ages: 120, 210 and 360 days old. It was studied the following variables: live conformation, body condition, corporal length, thoracic perimeter, withers height and hip height, body compactness, carcass conformation, carcass internal length (L measure), breast depth (Th measure), slaughter live weight, hot carcass weight, cold carcass weight, real yielding, commercial yielding, kg and percentage cooling breaking, fattiness state and live weight components, neck, palette, costal region and leg weight and percentage, palette and leg weight and percentage of bone, muscle and fat. It was concluded that live characteristics could be used to estimate the Corriedale lamb carcasses characteristics, either wether or not wether bred on grazing conditions where. Key words: sheep, conformation, regional composition, tissue composition.
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Influência da castração e da idade de abate sobre as características subjetivas e instrumentais da carne de cordeiros Corriedale
Revista Brasileira de Zootecnia, 2006Co-Authors: Eunice De Leon Rota, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, Gilson De Mendonca, Roger Esteves, Mauricio Morgado De Oliveira, Mabel Mascarenhas Wiegand, Michelle GonçalvesAbstract:The objective of this trial was to evaluate the effects of castration and slaughtering age on subjective and instrumental characteristics of meat from Corriedale lambs raised on native pasture. Sixty male lambs (30 castrated and 30 intact) slaughtered at 120, 210 and 360 days of age were used in this experiment. The Longissimus dorsi muscle was used for all meat evaluations and analysis. No significant castration ´ slaughtering age interaction was observed for the studied variables. A significant slaughtering age effect was found for meat fat thickness and marbling, which had lower scores in animals slaughtered at more advanced age as well as for all instrumental characteristics of the meat, mainly tenderness that was reduced in older lambs. However, a significant castration effect was observed only for meat color (brightness according to the CIELAB system). It can be concluded that meat quality from Corriedale lambs grazing native pasture was not affected by castration. Slaughtering age affected meat quality with lambs slaughtered at 120 days of age showing the best results.
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morfologia caracteristicas da carcaca e componentes do peso vivo em borregos Corriedale e ideal
Ciencia Rural, 2003Co-Authors: Gilson De Mendonca, Nelson Manzoni De Oliveira, Jose Carlos Da Silveira Osorio, M T M Osorio, Roger Esteves, Mabel Mascaranhas WiengardAbstract:The objective of this study was to compare Corriedale and Polwarth breeds as to morphologic and carcass characteristics, as well as, to evaluate liveweight and liveweight components variation. Forty wethers (castrated at 30 days of age), were used (19 Polwarth and 21 Corriedale), weaned at 70 days, and slaughtered with one year of age. Animals were raised under extensive native pasture conditions at Embrapa Pecuaria Sul - CPPSUL, Bage, RS. Laboratory measurements were carried out at the Animal Science Department of Universidade Federal de Pelotas, in Pelotas, RS. Corriedale breed showed higher values (P 0.05). Corriedale breed presented higher slaughtering weight and higher hot carcass weight. Polwarth showed lower cooling losses, both in weight and percentage (P 0.05). Corriedale wethers presented higher weight for feet and lungs and lower weight for internal fat. In relative values, Polwarth wethers showed higher proportion of liver and internal fat. It is concluded that morphological differences are observed only in live animals. Liveweight components showed quantitative and qualitative differences for both breeds.
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efeito da castracao sobre a producao de carne em cordeiros Corriedale
Current Agricultural Science and Technology, 1999Co-Authors: Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, Marcelo Alves Pimentel, Henrique Faria, Juvencio Pouey, Roger EstevesAbstract:Objetivou-se comparar a producao de carne em cordeiros castrados aos 30 dias de idade (n=19) e nao castrados (n=20), da raca Corriedale, nascidos e criados em condicoes sustentaveis naturais e abatidos aos 144 dias de idade. Os cordeiros nao castrados e castrados apresentaram similar peso vivo e morfologias “in vivo” e na carcaca. Os cordeiros castrados apresentaram maior peso de gordura interna e do baco, sendo que, em porcentagem do peso vivo, apresentaram maior proporcao de carcaca (rendimento de carcaca verdadeiro e comercial), gordura interna e baco e menor de figado, em relacao aos nao castrados. Nao houve diferenca estatisticamente significativa entre os grupos para a composicao regional da carcaca. Quanto a composicao tecidual, os cordeiros nao castrados apresentaram menos gordura na paleta que os castrados e, esses ultimos mostraram uma maior variacao na quantidade de gordura. A castracao apresentou um efeito importante sobre a producao de carne em cordeiros da raca Corriedale sacrificados aos 144 dias de idade.
Jose Carlos Da Silveira Osorio - One of the best experts on this subject based on the ideXlab platform.
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caracteristicas da carcaca e da carne de cordeiros Corriedale manejados em duas alturas de milheto
Archivos De Zootecnia, 2013Co-Authors: Jaqueline Schneider Lemes, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, S S Gonzaga, Luciane Da Silva Martins, R M G Esteves, R I LehmenAbstract:The objective of this study was to evaluate the carcass characteristics and meat quality of Corriedale lambs subjected to two grazing height on millet. The lamb"s termination was done in summer annual pasture on a common cultivar of millet (Pennisetum americanum (L.) Leeke). The treatments consisted of two grazing heights, 20 and 40 cm. The slaughter was based on body condition between 2 and 3 (1 to 5 scale). Quantitative and qualitative evaluations were carried out on carcass and meat. The conformation demonstrated great relation with fattening status. There was no difference between subjective characteristics of color and texture. However marbling index values were higher (p<0.01), when lambs grazed on 20 cm height millet. In conclusion, there is neither difference between carcass characteristics and instrumental meat evaluations, nor difference in tissue components of the shoulder in Corriedale lambs subjected to different grazing heights on millet. However, the height of grazing affects the marbling score.
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producao e composicao quimica do leite de ovelhas Corriedale com diferentes niveis de suplementacao aos 100 dias de lactacao
Current Agricultural Science and Technology, 2008Co-Authors: Gladis Ferreira Correia, Roberto Kremer, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, Fernando Perdigon, Lucy Sosa, Joao Gilberto Correa Da Silva, Paulo Rodinei Soares LopesAbstract:Este experimento foi desenvolvido no campo experimental no. 1, da Faculdade de Veterinaria de Montevideu da Universidade da Republica Oriental do Uruguai. O objetivo foi comparar a producao e a composicao do leite ordenhado mecanicamente, produzido pelo genotipo Corriedale , com e sem suplementacao no periodo de ordenha. Foram utilizados animais da raca Corriedale , ordenhados duas vezes ao dia, de setembro a dezembro de 2004, sendo realizados no total cinco controles leiteiros com intervalo de vinte e um dias. As amostras, para composicao quimica, foram obtidas em partes iguais das ordenhas matutinas e vespertinas, e analisadas pela Cooperativa de Laboratorios Veterinarios de Colonia. A alimentacao durante o periodo de ordenha foi pastagem cultivada consorciada de azevem ( Lolium multiflorum Lam ), trevo branco ( Trifolium repens L.) e cornichao (Lotus corniculatus L.), com disponibilidade media de 4,1 tMS /ha-1. Alem da pastagem, um grupo de animais foi suplementado com racao comercial. A producao de leite (kg) e componentes quimicos (g) corrigida para os 100 dias de lactacao foram analisados pelo proc GLM. Foi observado efeito para as producoes de leite (kg), gordura, proteina e lactose (g) corrigidas para os 100 dias de lactacao, para a variavel nivel de suplementacao (P>0,05), com valores medio de 57,010 e 50,310 kg para a producao de leite, 46,0 e 38,5 g para a gordura, 31,5 e 26,4 g para proteina e 28,6 e 24,9 g para producao de lactose, respectivamente, para os grupos suplementado e nao suplementado. A raca Corriedale demonstrou potencial produtivo, mesmo frente a adversidades . Palavras-chave: Aptidao leiteira ovina, componentes do leite ovino, ovinos leiteiros . ABSTRACT This experiment was carried out at the experimental field n.1 of the Veterinary School of Montevideo, Uruguay. The objective was compare milk yield and composition of machine-milked produced by Corriedale genotype with and without supplementation during the milking period and to analyze yield and chemical composition of milk along the year. Corriedale animals were used, milked twice daily, from September to December of 2004, with five milking controls being made at 21-days interval. Samples for chemical composition assessment were obtained in equal parts from morning and afternoon milkings and analyzed by the Cooperativa de Laboratorios Veterinarios de Colonia . During the milking period animals were kept in a cultivated mixed pasture of italian ryegrass ( Lolium multiflorum Lam.), white clover ( Trifolium repens L.) and birdsfoot trefoil (Lotus corniculatus L.) with an average of 4.1 tDM/ha-1 availability. Besides the pasture, a group of Corriedale animals were supplemented with commercial ration. For the evaluation of milk production (kg) and chemical components (g) corrected for 100 days of lactation the GLM proc was used. Significant difference occurred for milk production (kg), fat, protein and lactose (g), corrected for 100 days of lactation an effect of supplementation (P>0,05) with average values of 57.010 and 50.310 kg for milk yield, 46.0 and 38.5 g for fat, 31.5 and 26.4 g for protein and 28.6 and 24.9 g for lactose yield, respectively. Corriedale sheep breed demonstrated productive potential even confronted to adversities. Key-words: sheep milk components, sheep milk, sheep milking aptitude.
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relacao entre medidas in vivo e na carcaca em cordeiros Corriedale
Revista da FZVA, 2007Co-Authors: Jose Luiz Garcia Quadro, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, Gilson De Mendonca, Eunice De Leon Rota, Michele Goncalves, Roger EstevesAbstract:O presente trabalho objetivou estimar as relacoes entre o animal ''in vivo'' e a carcaca, quantificando as caracteristicas de interesse comercial, os componentes do peso vivo, a composicao regional e tecidual da carcaca de 60 cordeiros machos sendo 30 castrados e 30 nao castrados da raca Corriedale, criados em campo nativo. O experimento foi realizado na Fazenda Santa Tereza, localizada no municipio de Santa Vitoria do Palmar-RS, em sua fase de campo e no Laboratorio de carcacas e carnes do Departamento de Zootecnia da Faculdade de Agronomia Eliseu Maciel, em sua fase laboratorial. Os cordeiros foram abatidos em tres idades 120, 210 e 360 dias de idade. As variaveis estudadas foram: conformacao “in vivo”, condicao corporal, comprimento corporal, perimetro toracico, altura do anterior, compacidade corporal, peso corporal ao abate. E apos o abate, conformacao da carcaca, comprimento interno da carcaca (medida L), peso de carcaca quente e fria, rendimento verdadeiro, rendimento comercial, estado de engorduramento. Na composicao regional, peso e percentagem do pescoco, paleta, costilhar e perna. Na composicao tecidual peso e percentagem de osso, musculo e gordura da paleta e perna. Concluindo-se que as medidas tomadas “in vivo” podem ser de grande valia para estimar as caracteristicas da carcaca em cordeiros Corriedale castrados e nao castrados criados em campo nativo. Palavras-chave: Ovinos, conformacao, composicao regional, composicao tecidual. ABSTRACT This work aimed to estimate the correlation of live animals and their carcasses. The characteristics of commercial concern, the live weight components and the regional and tissue compound of 60 Corriedale lambs – 30 wedder and 30 not wedder – were quantified. The animals where bred on grazing conditions where. The field part of the experiment took place at Santa Tereza farm, at Santa Vitoria do Palmar – RS and the laboratorial phase at the laboratory of flesh and carcasses in the Departamento de Zootecnia of Faculdade de Agronomia Eliseu Maciel. Lambs were slaughtered at three different ages: 120, 210 and 360 days old. It was studied the following variables: live conformation, body condition, corporal length, thoracic perimeter, withers height and hip height, body compactness, carcass conformation, carcass internal length (L measure), breast depth (Th measure), slaughter live weight, hot carcass weight, cold carcass weight, real yielding, commercial yielding, kg and percentage cooling breaking, fattiness state and live weight components, neck, palette, costal region and leg weight and percentage, palette and leg weight and percentage of bone, muscle and fat. It was concluded that live characteristics could be used to estimate the Corriedale lamb carcasses characteristics, either wether or not wether bred on grazing conditions where. Key words: sheep, conformation, regional composition, tissue composition.
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Influência da castração e da idade de abate sobre as características subjetivas e instrumentais da carne de cordeiros Corriedale
Revista Brasileira de Zootecnia, 2006Co-Authors: Eunice De Leon Rota, Jose Carlos Da Silveira Osorio, Maria Teresa Moreira Osorio, Gilson De Mendonca, Roger Esteves, Mauricio Morgado De Oliveira, Mabel Mascarenhas Wiegand, Michelle GonçalvesAbstract:The objective of this trial was to evaluate the effects of castration and slaughtering age on subjective and instrumental characteristics of meat from Corriedale lambs raised on native pasture. Sixty male lambs (30 castrated and 30 intact) slaughtered at 120, 210 and 360 days of age were used in this experiment. The Longissimus dorsi muscle was used for all meat evaluations and analysis. No significant castration ´ slaughtering age interaction was observed for the studied variables. A significant slaughtering age effect was found for meat fat thickness and marbling, which had lower scores in animals slaughtered at more advanced age as well as for all instrumental characteristics of the meat, mainly tenderness that was reduced in older lambs. However, a significant castration effect was observed only for meat color (brightness according to the CIELAB system). It can be concluded that meat quality from Corriedale lambs grazing native pasture was not affected by castration. Slaughtering age affected meat quality with lambs slaughtered at 120 days of age showing the best results.
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efeitos do cruzamento de carneiros da raca texel com ovelhas Corriedale e ideal sobre a qualidade da carne
Current Agricultural Science and Technology, 2004Co-Authors: Jose Carlos Da Silveira Osorio, Nelson Manzoni De Oliveira, Maria Teresa Moreira Osorio, Eunice De Leon Rota, Juliana Barboza, Sabine KasingerAbstract:Este estudo teve como objetivo fornecer informacoes sobre a qualidade da carne de 23 cordeiros machos nao castrados, procedentes do cruzamento de carneiros Texel com ovelhas Ideal e Corriedale (12 Texel x Ideal e 11 Texel x Corriedale), criados no Rio Grande do Sul, em campo nativo e suplementados com racao concentrada comercial, desmamados aos 70 dias e abatidos com idade media de 180 dias. As analises foram realizadas no musculo Longissimus dorsi e, os valores medios encontrados para os cordeiros cruza Ideal e Corriedale, quanto ao pH inicial; pH 24 horas; capacidade de retencao de agua; cor e dureza nao apresentaram diferenca significativa entre os dois cruzamentos. A utilizacao de cruzamentos da raca Texel com as racas Corriedale e Ideal foram similares quanto as caracteristicas de qualidade de carne, permitindo que facam parte de uma mesma denominacao especifica, sem a necessidade de uma valorizacao diferenciada.
