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Nguyen Cong Oanh - One of the best experts on this subject based on the ideXlab platform.
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Morphological Characteristics, Growth Performance, Carcass Yield of Indigenous Tien Yen Chicken
2020Co-Authors: Nguyen Cong OanhAbstract:This study was conducted to determine morphological characteristics, growth performance, Carcass Yield and meat quality of purebred Tien Yen chicken raised at the experimental farm of Vietnam National University of Agriculture, and at household farms in Tien Yen district Quang Ninh province. A total of 114 individuals was were morphologically characterized. Growth performances were assessed on 55 chickens, and Carcass Yield was evaluated on 6 individuals for each period. The results showed that, at 1-old-day, chicks had 2 main feather colors including yellow with black stripes (90%) and yellow (10%); At 38 weeks old, cocks’ body feather color was characterized by black bronze (71.8%) and bronze brown (28.2%), while the hens were characterized by bright yellow 80% and dark brown 20%. Chickens had a chin’s feather (beard) 90% or a typical head’s feather 10%. The survival rate was high 94.6% and the males had significantly heavier body weight compared with the females during from 3 weeks old (P
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Morphological Characteristics, Growth Performance, Carcass Yield of Indigenous Tien Yen Chicken
2020Co-Authors: Nguyen Cong OanhAbstract:peer reviewedaudience: researcher, professional, student, popularization, otherThis study was conducted to determine morphological characteristics, growth performance, Carcass Yield and meat quality of purebred Tien Yen chicken raised at the experimental farm of Vietnam National University of Agriculture, and at household farms in Tien Yen district Quang Ninh province. A total of 114 individuals was were morphologically characterized. Growth performances were assessed on 55 chickens, and Carcass Yield was evaluated on 6 individuals for each period. The results showed that, at 1-old-day, chicks had 2 main feather colors including yellow with black stripes (90%) and yellow (10%); At 38 weeks old, cocks’ body feather color was characterized by black bronze (71.8%) and bronze brown (28.2%), while the hens were characterized by bright yellow 80% and dark brown 20%. Chickens had a chin’s feather (beard) 90% or a typical head’s feather 10%. The survival rate was high 94.6% and the males had significantly heavier body weight compared with the females during from 3 weeks old (P
Rodrigo Andre Schone - One of the best experts on this subject based on the ideXlab platform.
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Carcass Yield and sensorial analysis of meat from broiler chicken fed with tilapia byproducts meal
Ciencia E Agrotecnologia, 2013Co-Authors: Cinthia Eyng, Ricardo Vianna Nunes, Paulo Cesar Pozza, Alice Eiko Murakami, Carina Scherer, Rodrigo Andre SchoneAbstract:There are several ingredients that can replace those commonly used in the manufacture of animal ration in order to reduce production costs, as tilapia by products meal. However, as byproducts, more studies should be done to achieve the exact effects over the final product. An experiment was carried out aiming at evaluate the effects of the inclusion of five different levels (0%, 2%, 4%, 6% and 8%) of tilapia (Oreochromis niloticus) byproducts meal (TM) on poultry diets on Carcass Yield and sensory characteristics of broiler chicken meat. 480 one day old chicks, Cobb strain, were used to set the experiment with five treatments arranged in completely randomized design, with six replicates, and 16 birds per experimental unit. At the end of the experiment (42 days), the Carcass Yield parameters, breasts, drumsticks, thighs, wings, relative weight of the liver, and percent of abdominal fat were evaluated. A sensorial test of the meat was performed by 45 non-trained testers. The samples were evaluated using a structured hedonic scale, comprising nine steps to characterize the following senses: aroma, flavor, color, texture and whole quality. The addition of 8% TM to the diet fed to broiler chickens during total rearing period (1 to 42 days) is feasible without altering Yield and sensorial quality of the meat.
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Carcass Yield and sensorial analysis of meat from broiler chicken fed with tilapia byproducts meal rendimento de carcaca e analise sensorial da carne de frangos alimentados com farinha de residuo da filetagem de tilapia
2013Co-Authors: Cinthia Eyng, Ricardo Vianna Nunes, Paulo Cesar Pozza, Alice Eiko Murakami, Carina Scherer, Rodrigo Andre SchoneAbstract:There are several ingredients that can replace those commonly used in the manufacture of animal ration in order to reduce production costs, as tilapia by products meal. However, as byproducts, more studies should be done to achieve the exact effects over the final product. An experiment was carried out aiming at evaluate the effects of the inclusion of five different levels (0%, 2%, 4%, 6% and 8%) of tilapia (Oreochromis niloticus) byproducts meal (TM) on poultry diets on Carcass Yield and sensory characteristics of broiler chicken meat. 480 one day old chicks, Cobb strain, were used to set the experiment with five treatments arranged in completely randomized design, with six replicates, and 16 birds per experimental unit. At the end of the experiment (42 days), the Carcass Yield parameters, breasts, drumsticks, thighs, wings, relative weight of the liver, and percent of abdominal fat were evaluated. A sensorial test of the meat was performed by 45 non-trained testers. The samples were evaluated using a structured hedonic scale, comprising nine steps to characterize the following senses: aroma, flavor, color, texture and whole quality. The addition of 8% TM to the diet fed to broiler chickens during total rearing period (1 to 42 days) is feasible without altering Yield and sensorial quality of the meat.
Lars O. Eik - One of the best experts on this subject based on the ideXlab platform.
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Growth, Carcass Yield and meat quality attributes of Red Maasai sheep fed wheat straw-based diets
Tropical Animal Health and Production, 2011Co-Authors: John G. Safari, Daniel E. Mushi, Louis A. Mtenga, George C. Kifaro, Lars O. EikAbstract:Thirty-two castrated Red Maasai sheep (12.7 kg initial body weight, aged 12–18 months), were used in an 84-day experiment to evaluate diets based on treated straw upon growth performance, Carcass Yield and meat quality. The animals were blocked by weight into four similar groups and randomly allotted into four dietary treatments, with eight individually fed animals per treatment. The dietary treatments were ad libitum untreated wheat straw (UTS), wheat straw treated with urea and lime (TS), straw and ad libitum hay (UTSH), and TS and ad libitum hay (TSH). In addition, each experimental animal received 220 g/day (on as fed basis) of a concentrate diet. Treatment of straw increased ( P
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growth Carcass Yield and meat quality attributes of red maasai sheep fed wheat straw based diets
Tropical Animal Health and Production, 2011Co-Authors: John G. Safari, Daniel E. Mushi, Louis A. Mtenga, George C. Kifaro, Lars O. EikAbstract:Thirty-two castrated Red Maasai sheep (12.7 kg initial body weight, aged 12–18 months), were used in an 84-day experiment to evaluate diets based on treated straw upon growth performance, Carcass Yield and meat quality. The animals were blocked by weight into four similar groups and randomly allotted into four dietary treatments, with eight individually fed animals per treatment. The dietary treatments were ad libitum untreated wheat straw (UTS), wheat straw treated with urea and lime (TS), straw and ad libitum hay (UTSH), and TS and ad libitum hay (TSH). In addition, each experimental animal received 220 g/day (on as fed basis) of a concentrate diet. Treatment of straw increased (P < 0.05) dry matter intake (42.3 vs. 33.7 g/kg W 75/day), energy intake (4.6 vs. 3.7 MJ ME/d) and the average daily gain (40.7 vs. 23.1 g). Animals on TS produced heavier (P < 0.05) Carcasses (6.6 vs. 5.4 kg) with superior conformation than animals on UTS. Percentage cooking loss was higher in Carcasses from animals fed TS compared to those from other diets. Except M. longissimus dorsi and M. semitendinosus, tenderness of muscles was not affected by diet but ageing of meat improved (P < 0.001) tenderness. Overall, straw treatment increased Carcass Yields with limited effects on meat quality attributes.
J M Zou - One of the best experts on this subject based on the ideXlab platform.
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effects of outdoor access days on growth performance Carcass Yield meat quality and lymphoid organ index of a local chicken breed
Poultry Science, 2015Co-Authors: Haibing Tong, Q Wang, J Cai, Dan Shao, J M ZouAbstract:An experiment was conducted to evaluate the effect of outdoor access days on growth performance, Carcass Yield, meat quality, and lymphoid organ index of a local chicken breed. In total, 864 twenty one-day-old male Suqin yellow chickens, with similar body weight (536±36g), were selected and raised in indoor floor pens that measured 1.42×1.42 m (2 m2, 18 birds/m2) in conventional poultry research houses (36 birds per pen). Two hundred and sixteen birds were allowed outdoor access treatments at 21, 28, 35, and 42 d of age, respectively (access to outdoor for 35, 28, 21, and 14 days, respectively). Each treatment was represented by 6 replicates (pens) containing 36 birds (216 birds per treatment). In the outdoor access treatment, the birds had an outdoor free-range paddock that measured 3×8 m (24 m2, 1.5 birds/m2). The body weight of birds at 56 d of age increased linearly with increasing outdoor access days (P<0.001), but there was no effect of the outdoor access days on the body weight at 42 d of age (P=0.161). The daily weight gain, daily feed intake, and feed per gain from 21 to 42 d of age were unaffected by outdoor access days (P=0.401, P=0.463, P=0.223, respectively). However, the daily weight gain and daily feed intake from 42 to 56 and from 21 to 56 d of age increased linearly with increasing outdoor access days (P=0.002, P<0.001; P=0.001, P=0.004; respectively), while the feed per gain tended to decrease linearly from 21 to 56 d of age (P=0.060). The mortality from 21 to 56 d of age was unaffected by outdoor access days (P=0.261). At 56 d of age, the breast Yield increased linearly with increasing outdoor access days (P<0.001), while the foot Yield decreased linearly (P=0.016). The light (L*) and red (b*) values of leg meat color increased linearly with increasing outdoor access days (P=0.032, P=0.013, respectively). The spleen: the body weight ratio showed a decreasing and then increasing quadratic response to increasing outdoor access days (P=0.047). The litter moisture content at 42 and 56 d of age increased linearly with increasing outdoor access days (P<0.001, P=0.013, respectively). The findings of this study suggest that increasing outdoor access days advantageously affects the body weight, daily weight gain, feed per gain and breast Yield as well as the light (L*) and red (b*) values of leg meat color, while decreasing foot Yield.
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effect of free range days on a local chicken breed growth performance Carcass Yield meat quality and lymphoid organ index
Poultry Science, 2014Co-Authors: Haibing Tong, Q Wang, J M Zou, L L ChangAbstract:Abstract An experiment was conducted to evaluate the effect of free-range days on growth performance, Carcass Yield, meat quality, and lymphoid organ index of a local chicken breed. In total, 1,000 one-day-old male Suqin yellow chickens were raised for 21 d. On d 21, 720 birds with similar BW (536 ± 36 g) were selected and randomly assigned to free-range treatment at 21, 28, 35, and 42 d of age (assigned to free-range treatment for 21, 14, 7, and 0 d, respectively). Each treatment was represented by 5 replicates (pens) containing 36 birds (180 birds per treatment). All the birds were raised in indoor floor pens measuring 1.42 × 1.42 m (2 m2, 18 birds/m2) in conventional poultry research houses before free-range treatment. In the free-range treatment, the chickens were raised in indoor floor houses measuring 3 × 5 m (15 m2, 2.4 birds/m2). In addition, they also had an outdoor free-range paddock measuring 3 × 8 m (24 m2, 1.5 birds/m2). The BW of birds after being assigned to free-range treatment for 7 d decreased significantly compared with that in the conventional treatment (P 0.05). The daily weight gain, feed per gain, daily feed intake, and mortality from 21 to 42 d of age were unaffected by free-range days (P > 0.05). At 42 d of age, the breast Yield increased linearly with increasing free-range days (P 0.05). The absolute thymus weight and thymus:BW ratio showed a significant increasing and then decreasing quadratic response to increasing free-range days (P
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influence of whole hulled rice and rice husk feeding on the performance Carcass Yield and digestive tract development of geese
Animal Feed Science and Technology, 2014Co-Authors: Z Y Wang, H M Yang, J M ZouAbstract:Abstract The present study was conducted to investigate the effects of hulled rice and rice husk feeding on the performance, Carcass Yield and digestive tract development of geese from 28 to 70 days of age. A total of 120 Yangzhou geese, 28 d old and with similar body weight, were distributed to 12 pens of 10 birds per pen. Each treatment was represented by 4 replicates. The experimental treatments were as follows: control diet based on ground maize, soybean meal and alfalfa meal (GM); experimental diet based on ground maize, soybean meal, ground hulled rice and rice husk (GR, 172 g ground hulled rice and 103 g rice husk/kg); experimental diet based on ground maize, soybean meal, whole hulled rice and rice husk (WR, 172 g whole hulled rice and 103 g rice husk/kg). Over the 28–70-day trial period, no significant difference ( P > 0.05) was observed in the daily feed intake of geese, but birds receiving the WR treatment had the highest ( P P P > 0.05). Birds receiving the WR diet had the lowest ( P
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effects of stocking density on growth performance Carcass Yield and immune status of a local chicken breed
Poultry Science, 2012Co-Authors: Haibing Tong, Q Wang, J M Zou, Shourong ShiAbstract:An experiment was conducted to evaluate the effect of stocking density on growth performance, Carcass Yield, and immune status of a local chicken breed. In total, 840 one-day-old male Suqin yellow chickens were placed into 4-m(2) cages in groups of 50 (low), 70 (medium), or 90 (high) birds. Each treatment was represented by 4 replicates (cages). The cages measured 2.84 × 1.42 m; half of the area of the cage (2 m(2)) was used from 1 to 28 d and the whole cage was used from 29 to 42 d. Stocking densities were 25, 35, and 45 birds/m(2) from 1 to 28 d and 12.5, 17.5, and 22.5 birds/m(2) from 29 to 42 d (low, medium, and high, respectively). Final production (live bird mass after fasting) per unit area was 14.46, 19.46, and 24.23 kg/m(2), respectively, at 42 d of age. Several immune parameters were evaluated, and the growth performance, Carcass Yield, and meat quality were determined. Body weight at 28 and 42 d of age was significantly reduced as the stocking density increased (P 0.05). The thigh Yield of chickens in the medium-density group improved significantly (P 0.05) by the stocking density, but pH values increased slightly as density increased. No significant difference was noted in the immunological parameters, but the blood total protein and potassium were significantly affected by stocking density (P < 0.05). The findings of this study suggest that increasing the stocking density advantageously affected feed/gain and decreased the final BW, whereas no evidence was found that stocking density caused changes in any of the measured immune parameters.
Wude Tsega - One of the best experts on this subject based on the ideXlab platform.
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Effects of different levels of dried sweet potato (Ipomoea batatas) leaves inclusion in finisher ration on feed intake, growth, and Carcass Yield performance of Ross broiler chicks
Tropical Animal Health and Production, 2010Co-Authors: Berhan Tamir, Wude TsegaAbstract:The effect of supplementation with increasing levels of dried leaves of sweet potato ( Ipomoea batatas ) on feed intake, body weight gain, and Carcass Yield characteristics of finisher Ross broiler chicks was studied at Haramaya University, Ethiopia. Three hundred Ross broiler chicks aging 29 days and weighing 540 ± 5.28 g (mean ± SD) were randomly distributed to 15 pens, each with 20 chicks, representing five treatment rations each with three replications. Dietary treatments consisted of inclusions of dried leaves of sweet potato at levels of 0, 50, 100, 150, and 200 g/kg DM for treatments T1, T2, T3, T4, and T5, respectively. The experiment lasted for 28 days, during which, dry matter intake (DMI), body weight gain, and feed conversion efficiency; Carcass Yield characteristics; and weights and lengths of different parts of gastrointestinal tract were measured. Data were subjected to statistical analysis using SAS (1998). Inclusion of dried leaves of sweet potato at the level of 200 g/kg DM resulted in lower ( P 0.05) by inclusion of dried leaves of sweet potato up to 150 g/kg DM. The results of this study revealed that inclusion of dried leaves of sweet potato up to 100 g/kg DM in the finisher ration might be considered as the optimum level of supplementation when chickens are sold on live weight basis, but if birds are sold on eviscerated Carcass weight basis, inclusion up to 150 g/kg DM might be economically feasible as it produced higher Carcass Yield components.