The Experts below are selected from a list of 13191 Experts worldwide ranked by ideXlab platform
L Jank - One of the best experts on this subject based on the ideXlab platform.
-
Heritability and variability of bromatological traits evaluated in Panicum Maximum hybrids in the Western Amazon.
2016Co-Authors: P. M. Beber, G. M. L. De Assis, R. De M. Clemencio, L JankAbstract:The knowledge of the genetic parameters of bromatological traits in forages is essential to support the selection of genotypes that will be released as new cultivars. The objectives of this study were to estimate the heritability coefficients and verify the existence of genetic variability of bromatological traits in Panicum Maximum hybrids, evaluated in the Western Amazon in different harvests over the year.
-
identification of ideotypes by canonical analysis in Panicum Maximum
Ciencia E Agrotecnologia, 2015Co-Authors: Janaina Azevedo Martuscello, Thiago Gomes Dos Santos Braz, L Jank, Daniel De Noronha Figueiredo Vieira Da Cunha, Ana Luiza Silva CarvalhoAbstract:Grouping of genotypes by canonical variable analysis is an important tool in breeding. It allows the grouping of individuals with similar characteristics that are associated with superior agronomic performance and may indicate the ideal profile of a plant for the region. The objective of the present study was to define, by canonical analysis, the agronomic profile of Panicum Maximum plants adapted to the Agreste region. The experiment was conducted in a completely randomized design with 28 treatments, 22 genotypes of Panicum Maximum, and cultivars Mombasa, Tanzania, Massai, Milenio, BRS Zuri, and BRS Tamani in triplicate in 4-m² plots. Plots were harvested five times and the following traits were evaluated: plant height; total, leaf, and stem; dead dry matter yields; leaf:stem ratio; leaf percentage; and volumetric density of forage. The analysis of canonical variables was performed based on the phenotypic means of the evaluated traits and on the residual variance and covariance matrix. Genotype PM34 showed higher mean leaf dry matter yield under the conditions of the Agreste of Alagoas (on average 53% higher than cultivars Mombasa, Tanzania, Milenio and Massai). It was possible to summarize the variation observed in eight agronomic characteristics in only two canonical variables accounting for 81.44 % of the data variation. The ideotype plant adapted to the conditions of the Agreste should be tall and present high leaf yield, leaf percentage, and leaf:stem ratio, and intermediate values of volumetric density of forage.
-
Repeatability and phenotypic stabilization of Panicum Maximum accessions.
Acta Scientiarum. Animal Sciences, 2015Co-Authors: Janaina Azevedo Martuscello, Thiago Gomes Dos Santos Braz, L Jank, Daniel De Noronha Figueiredo Vieira Da Cunha, Bruno Patrick Da Silva Lima, Leandro Pereira De OliveiraAbstract:The experiment aimed at determining repeatability coefficients for four methods (analysis of variance, principal components-correlation and covariance matrices and structural analysis), number of harvests necessary to increase accuracy and phenotypic stability of yield characteristics of accessions of Panicum Maximum. The experiment was conducted in a completely randomized design with 35 genotypes and three replications. Five cuts were made and material was weighed and dried to obtain total, stem, leaf and dead forage dry matter yields. The repeatability coefficients in the different methods, for the evaluated characteristics, ranged from 0.1867 and 0.6583. The estimates of repeatability coefficients obtained for the evaluated characteristics by analysis of variance were generally smaller than the ones obtained with the other methods. By the principal components (based on the covariance matrix), the estimates were usually larger than those for the other methods. Therefore, it is possible to recommend this method to estimate the coefficient of repeatability for traits evaluated in this study. Considering that levels of 80 or 90% of confidence in the evaluation of the relative superiority of the accessions for all the evaluated characteristics are satisfactory, five harvests are sufficient for the choice of the best accession.
-
identification of ideotypes by canonical analysis in Panicum Maximum identificacao de ideotipos por meio de analise canonica em Panicum Maximum
2015Co-Authors: Janaina Azevedo Martuscello, L Jank, Thiago Gomes, Santos Braz, Daniel De Noronha, Figueiredo Vieira Da Cunha, Ana Luiza Silva CarvalhoAbstract:Grouping of genotypes by canonical variable analysis is an important tool in breeding. It allows the grouping of individuals with similar characteristics that are associated with superior agronomic performance and may indicate the ideal profile of a plant for the region. The objective of the present study was to define, by canonical analysis, the agronomic profile of Panicum Maximum plants adapted to the Agreste region. The experiment was conducted in a completely randomized design with 28 treatments, 22 genotypes of Panicum Maximum, and cultivars Mombasa, Tanzania, Massai, Milenio, BRS Zuri, and BRS Tamani in triplicate in 4-m² plots. Plots were harvested five times and the following traits were evaluated: plant height; total, leaf, and stem; dead dry matter yields; leaf:stem ratio; leaf percentage; and volumetric density of forage. The analysis of canonical variables was performed based on the phenotypic means of the evaluated traits and on the residual variance and covariance matrix. Genotype PM34 showed higher mean leaf dry matter yield under the conditions of the Agreste of Alagoas (on average 53% higher than cultivars Mombasa, Tanzania, Milenio and Massai). It was possible to summarize the variation observed in eight agronomic characteristics in only two canonical variables accounting for 81.44 % of the data variation. The ideotype plant adapted to the conditions of the Agreste should be tall and present high leaf yield, leaf percentage, and leaf:stem ratio, and intermediate values of volumetric density of forage.
-
Potential of Panicum Maximum as a source of energy
Tropical Grasslands - Forrajes Tropicales, 2013Co-Authors: L Jank, Edson A. De Lima, Rosangela Maria Simeão, Ronimar C. AndradeAbstract:The use of plant biomass as a source of energy presents many advantages, mainly that it is a renewable, clean source of energy. Many tropical grasses have excellent potential as energy crops. The main one in Brazil is Pennisetum purpureum (elephant grass) owing to its very high yields. However, it is vegetatively propagated, thus more difficult to establish than seed-propagated species. The use of Panicum Maximum (guinea grass) is a possible alternative for use as a source of energy, due to its high yields as well as seed propagation. The objective of this research was to evaluate the potential of different P. Maximum genotypes for use as energy crops, in comparison with elephant grass.
Petrus Emeka Nwakpu - One of the best experts on this subject based on the ideXlab platform.
-
PERFORMANCE OF SHEEP GRAZING Brachiaria decumbens, Panicum Maximum and Pennisetum purpureum IN COMBINATION WITH Gliricidia sepium
Animal Research International, 2008Co-Authors: Isaac Ikechukwu Osakwe, Petrus Emeka NwakpuAbstract:The introduction of forage legumes into grass pastures has generally improved grazing animal production by increasing total edible biomass and nutrient profiles. An experiment was designed to study the performance of sheep grazing Brachiaria decumbens, Panicum Maximum and Pennisetum purpureum in combination with Gliricidia sepium. Eighteen paddocks of approximately 0.03 ha were used in the trial. Nine of the paddocks had Gliricidia sepium alley planted in rows 4 m apart and interplanted with 4 rows of either Brachiaria decumbens, Panicum Maximum, or Pennisetum purpureum. The other nine paddocks had only the grass species without the Gliricidia sepium. The paddocks were each grazed by 3 sheep. The pure grass stands without the Gliricidia sepium served as controls for the grass species in combination with Gliricidia sepium. The three grasses and their combinations within the alley plots were replicated three times.The animals were grazed continuously for 28 days in the sub plots. Sheep grazing the Gliricidia/Panicum plot had a higher (P 0.05) between sheep grazing the Gliricidia/Bracharia and Gliricidia/Pennisetum plots. The total dry matter intake of sheep on the Gliricidia/Panicum plot was higher (P < 0.05) (1.33 kg DM d-1) than that of sheep on Gliricidia/Bracharia (0.86 kg DM d-1) and Gliricidia/Pennisetum (0.43 kg DM d-1) plots respectively. The total biomass from the Gliricidia/Bracharia (23 t ha -1)and Gliricidia/Panicum (21 t ha -1) plots respectively were higher (P < 0.01) than the total biomass from the Gliricidia/Pennisetum ( 13 t ha -1) plot. These results demonstrate that grazing West African dwarf sheep in a Gliricidia sepium/Panicum Maximum plot improved their growth rate during dry season when feed supplies are limited. It also underscores the poor performance of animals grazing Pennisetum purpureum in Gliricidia sepium alley plot.
-
PERFORMANCE OF SHEEP GRAZING Brachiaria decumbens, Panicum Maximum and Pennisetum purpureum IN COMBINATION WITH Gliricidia sepium
Animal Research International, 2008Co-Authors: Isaac Ikechukwu Osakwe, Petrus Emeka NwakpuAbstract:The introduction of forage legumes into grass pastures has generally improved grazing animal production by increasing total edible biomass and nutrient profiles. An experiment was designed to study the performance of sheep grazing Brachiaria decumbens, Panicum Maximum and Pennisetum purpureum in combination with Gliricidia sepium. Eighteen paddocks of approximately 0.03 ha were used in the trial. Nine of the paddocks had Gliricidia sepium alley planted in rows 4 m apart and interplanted with 4 rows of either Brachiaria decumbens, Panicum Maximum, or Pennisetum purpureum. The other nine paddocks had only the grass species without the Gliricidia sepium. The paddocks were each grazed by 3 sheep. The pure grass stands without the Gliricidia sepium served as controls for the grass species in combination with Gliricidia sepium. The three grasses and their combinations within the alley plots were replicated three times.The animals were grazed continuously for 28 days in the sub plots. Sheep grazing the Gliricidia/Panicum plot had a higher (P 0.05) between sheep grazing the Gliricidia/Bracharia and Gliricidia/Pennisetum plots. The total dry matter intake of sheep on the Gliricidia/Panicum plot was higher (P < 0.05) (1.33 kg DM d-1) than that of sheep on Gliricidia/Bracharia (0.86 kg DM d-1) and Gliricidia/Pennisetum (0.43 kg DM d-1) plots respectively. The total biomass from the Gliricidia/Bracharia (23 t ha -1)and Gliricidia/Panicum (21 t ha -1) plots respectively were higher (P < 0.01) than the total biomass from the Gliricidia/Pennisetum ( 13 t ha -1) plot. These results demonstrate that grazing West African dwarf sheep in a Gliricidia sepium/Panicum Maximum plot improved their growth rate during dry season when feed supplies are limited. It also underscores the poor performance of animals grazing Pennisetum purpureum in Gliricidia sepium alley plot.
Isaac Ikechukwu Osakwe - One of the best experts on this subject based on the ideXlab platform.
-
PERFORMANCE OF SHEEP GRAZING Brachiaria decumbens, Panicum Maximum and Pennisetum purpureum IN COMBINATION WITH Gliricidia sepium
Animal Research International, 2008Co-Authors: Isaac Ikechukwu Osakwe, Petrus Emeka NwakpuAbstract:The introduction of forage legumes into grass pastures has generally improved grazing animal production by increasing total edible biomass and nutrient profiles. An experiment was designed to study the performance of sheep grazing Brachiaria decumbens, Panicum Maximum and Pennisetum purpureum in combination with Gliricidia sepium. Eighteen paddocks of approximately 0.03 ha were used in the trial. Nine of the paddocks had Gliricidia sepium alley planted in rows 4 m apart and interplanted with 4 rows of either Brachiaria decumbens, Panicum Maximum, or Pennisetum purpureum. The other nine paddocks had only the grass species without the Gliricidia sepium. The paddocks were each grazed by 3 sheep. The pure grass stands without the Gliricidia sepium served as controls for the grass species in combination with Gliricidia sepium. The three grasses and their combinations within the alley plots were replicated three times.The animals were grazed continuously for 28 days in the sub plots. Sheep grazing the Gliricidia/Panicum plot had a higher (P 0.05) between sheep grazing the Gliricidia/Bracharia and Gliricidia/Pennisetum plots. The total dry matter intake of sheep on the Gliricidia/Panicum plot was higher (P < 0.05) (1.33 kg DM d-1) than that of sheep on Gliricidia/Bracharia (0.86 kg DM d-1) and Gliricidia/Pennisetum (0.43 kg DM d-1) plots respectively. The total biomass from the Gliricidia/Bracharia (23 t ha -1)and Gliricidia/Panicum (21 t ha -1) plots respectively were higher (P < 0.01) than the total biomass from the Gliricidia/Pennisetum ( 13 t ha -1) plot. These results demonstrate that grazing West African dwarf sheep in a Gliricidia sepium/Panicum Maximum plot improved their growth rate during dry season when feed supplies are limited. It also underscores the poor performance of animals grazing Pennisetum purpureum in Gliricidia sepium alley plot.
-
PERFORMANCE OF SHEEP GRAZING Brachiaria decumbens, Panicum Maximum and Pennisetum purpureum IN COMBINATION WITH Gliricidia sepium
Animal Research International, 2008Co-Authors: Isaac Ikechukwu Osakwe, Petrus Emeka NwakpuAbstract:The introduction of forage legumes into grass pastures has generally improved grazing animal production by increasing total edible biomass and nutrient profiles. An experiment was designed to study the performance of sheep grazing Brachiaria decumbens, Panicum Maximum and Pennisetum purpureum in combination with Gliricidia sepium. Eighteen paddocks of approximately 0.03 ha were used in the trial. Nine of the paddocks had Gliricidia sepium alley planted in rows 4 m apart and interplanted with 4 rows of either Brachiaria decumbens, Panicum Maximum, or Pennisetum purpureum. The other nine paddocks had only the grass species without the Gliricidia sepium. The paddocks were each grazed by 3 sheep. The pure grass stands without the Gliricidia sepium served as controls for the grass species in combination with Gliricidia sepium. The three grasses and their combinations within the alley plots were replicated three times.The animals were grazed continuously for 28 days in the sub plots. Sheep grazing the Gliricidia/Panicum plot had a higher (P 0.05) between sheep grazing the Gliricidia/Bracharia and Gliricidia/Pennisetum plots. The total dry matter intake of sheep on the Gliricidia/Panicum plot was higher (P < 0.05) (1.33 kg DM d-1) than that of sheep on Gliricidia/Bracharia (0.86 kg DM d-1) and Gliricidia/Pennisetum (0.43 kg DM d-1) plots respectively. The total biomass from the Gliricidia/Bracharia (23 t ha -1)and Gliricidia/Panicum (21 t ha -1) plots respectively were higher (P < 0.01) than the total biomass from the Gliricidia/Pennisetum ( 13 t ha -1) plot. These results demonstrate that grazing West African dwarf sheep in a Gliricidia sepium/Panicum Maximum plot improved their growth rate during dry season when feed supplies are limited. It also underscores the poor performance of animals grazing Pennisetum purpureum in Gliricidia sepium alley plot.
O.m. Onagbesan - One of the best experts on this subject based on the ideXlab platform.
-
evaluation of gmelina arborea leaves supplemented with grasses Panicum Maximum and pennisetum purpureum as feed for west african dwarf goats
Tropical Animal Health and Production, 2004Co-Authors: G O Okagbare, O J Akpodiete, O Esiekpe, O.m. OnagbesanAbstract:Okagbare, G. O., Akpodiete, O. J., Esiekpe, O., Onagbesan, O. M. (2004).Evaluation of Gmelina arborea leaves supplemented with grasses (Panicum Maximum and Pennisetum purpureum) as feed for West African Dwarf goats. Tropical Animal Health and Production, 36, (6), 593-598
Olawale Kehinde Ajayi - One of the best experts on this subject based on the ideXlab platform.
-
Invitro and Invivo Assessment of Merremia aegyptia and Panicum Maximum Fed to West African Dwarf Sheep during Dry Season
2012Co-Authors: Olawale Kehinde AjayiAbstract:In vitro and in vivo methods were used to evaluate the potentials of Merremia aegyptia The in vitro gas production of Panicum Maximum and menemia aegyptia were measured at 3, 6,9, 12, 15, 18, 21, 24, 36 and 48 hours of incubation. The result of in vitro gas production showed that Panicum Maximum recorded the highest value (l O.33ml) at 48hrs of incubation when compared with the value of Meremia aegyptia There were no significant differences among the values of Organic Matter Digestibility (OMD), Mechanization Energy (ME), Short Chain Fatty Acid (SCFA) and Methane Production (CH4) of Panicum Maximum and Menemia aegyptia. The nutrient intake, nutrient digestibility, nitrogen utilization and microbial count of West African Dwarf Sheep fed experimental diet was studied over a period of 12weeks (84days). Eight sheep were randomly assigned to dietary treatment in a complete Randomized Design (CRD) with four animals per treatment fed Panicum Maximum with Men'emia aegyptia and a fixed quantity of concentrate mixture for a period of 12weeks. Metabolic trial of ten days was conducted. Result showed the dry matter intake was higher in sheep fed browse plant supplement and digestibility of dry matter(95.18), crude protein(95.00), fat (94.60) and Ash (71.1) were increased (P
