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黒毛和種枝肉横断面の画像解析形質と発育性ならびに飼料利用性間の遺伝的関連性 OAK
大澤, 剛史; 日高, 智; 加藤, 浩二; 口田, 圭吾; Osawa, Takefumi; Hidaka, Satoshi; Kato, Koji; Kuchida, Keigo.
黒毛和種の発育形質,鈎料利用形質,枝肉格付形質およびロース芯の画像解析形質問の遺伝的関連性について分析した.分析には間接検定材料牛1,492頭を用いた.発育形質は,肥育開始時の体重や体高など6形質,飼料利用形質は,濃厚飼料摂取量や要求率など4形質,枝肉格付形質は, BMSナンバーなど6形質,画像解析形質は,“全体の粒子のあらさ"や“細かさ指数"など6形質を用いた. BMSナンバーと各発育形質および各飼料利用形質間で,低いあるいは無の遺伝相関(-0.13~0.16)が推定さ れたが,“全体の粒子のあらさ”および“細かさ指数”と各発育形質問の遺伝相関は,それぞれ0.17~0.37および-0.29~0.06が推定された.“全体の粒子のあらさ”および“細かさ指数”と濃厚飼料摂取量間の遺伝相関は,それぞれ0.41および-0.23が推定され,それらと要求率聞においては,それぞれ-0.16~-0.07および0.19~0.25が推定された. したがって,発育性や飼料効率が良い個体は,あらい脂肪交雑粒子が増加し,細かい脂肪交雑粒子が減少する遺伝的関連性が示唆された. The purpose of this study was to investigate the genetic relationships among growth traits,feed utilization traits carcass grading traits and image analysis traits in the ribeye of Japanese Black steers. In this analysis,1,492 Japanese Black steers in progeny testing were used. The...
Palavras-chave: Carcass traits; Feed utilization traits; Growth traits; Image analysis traits; Japanese Black.
Ano: 2008 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2313
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北海道内の黒毛和種去勢牛における子牛市場出荷時体重と格付形質ならびに画像解析形質との遺伝的関連性 OAK
大澤, 剛史; 日高, 智; 宝寄山, 裕直; 加藤, 貴之; 上舘, 信幸; 口田, 圭吾; Osawa, Takefumi; Hidaka, Satoshi; Hokiyama, Hironao; Kato, Takayuki; Kamidate, Nobuyuki; Kuchida, Keigo.
北海道内の子牛市場ならびに枝肉市場で取引された,黒毛和種去勢牛の子牛市場出荷時体重と格付ならびに画像解析形質間の遺伝的関連性を調べることを目的とした.北海道内の子牛市場で取引され格付記録と枝肉横断面画像を持つ黒毛和種去勢牛805頭を分析に用いた.子牛市場時成績として子牛市場出荷時体重,格付形質として枝肉重量,ロース芯面積,ばらの厚さ,皮下脂肪厚,歩留基準値およびBMSナンバー,画像解析形質としてロース芯の脂肪面積割合,全体的な粒子のあらさおよび最大粒子のあらさについて分析を行った.また,過肥の影響をみるために格付形質ならびに画像解析形質の分析には子牛市場出荷時体重を子牛市場出荷時日齢で除した日齢体重 (kg/日) を6つのサブラクス(0.8,0.9,1.0,1.1,1.2および1.3 kg/日)に分類し,母数効果として含め分析を行った.子牛市場出荷時体重の直接および母性遺伝率は,0.15 ± 0.07および0.12 ± 0.07であった.子牛市場出荷時体重と格付形質間の直接遺伝相関は,ロース芯面積,皮下脂肪厚,歩留推定値およびBMSナンバーで負の値が推定された(-0.76~-0.08).画像解析形質との直接遺伝相関も,すべて負の値が推定された(-0.70~-0.34).さらに,脂肪交雑において1.0 kg/日付近の日齢体重が最も望ましい値であることが示唆された.子牛市場出荷時体重の改良を行う場合,これら形質との遺伝的関連性について注意が必要である. The purpose of this study was to investigate the genetic relationships between calf market weight with carcass traits and image...
Palavras-chave: Calf market weight; Carcass traits; Genetic parameter; Image analysis traits; Japanese Black.
Ano: 2008 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2312
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Phenotypic diversity and carcass quality of creole goats with genetic potential for resistance to infection caused by worm PAB
Neri,Vanessa dos Santos; Sarmento,José Lindenberg Rocha; Borges,Laylson da Silva; Torres,Tatiana Saraiva; Sena,Luciano Silva; Oliveira,Max Brandão de; Sousa Júnior,Antônio de.
Abstract: The objective of this work was to phenotypically characterize creole goats of the Moxotó, Azul, Canindé, Repartida, Marota, and Graúna breeds, comparing them with the Boer, Anglo Nubian, and Alpine exotic breeds, to identify the genetic groups of greater potential for carcass quality and resistance to infection caused by worm. Data on morphometric measurements were obtained for the count of worm eggs in grams of feces (WEGF), Famacha score, carcass measurements, and body weight from 308 animals, in a farm in the state of Piauí, Brazil. Repartida goats showed the highest average for wither height (61.55 cm) and rump height (62.16 cm), and Moxotó goats had the greatest ear length (13.45 cm). The Moxotó breed showed the highest means for carcass and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass traits; Genetic resources; Morphometry; Resistance.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700849
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Detection of SNPs in the BMP6 Gene and Their Association with Carcass and Bone Traits in Chicken Rev. Bras. Ciênc. Avic.
Cui,C; Ye,F; Li,Y; Yin,H; Ye,M; He,L; Zhao,X; Xu,H; Li,D; Qiu,M; Zhu,Q; Wang,Y.
ABSTRACT BMP6, a member of the subfamilies of the morphogenetic proteins (BMPs), plays a crucial role in osteogenic and chondrocyte differentiation in vitro and stimulates chondrogenesis, making chondrocytes differen-tiate on their terminal stage. The objective of this study is to explore the relationship between polymorphism of BMP6 gene and slaughter traits in chicken respectively. We screened the exonic and intronic regions of BMP6 gene by DNA pool construction and amplified DNA fragment by PCR, and finally, we got nine SNPs. Association analysis revealed that BMP6 had no significant association among all slaughter traits in Yellow bantam chicken. However, BMP6 had a significant difference with femur weight, tibia weight, femur length (p<0.05), and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: BMP6 gene; Bone traits; Carcass traits; Chicken; Polymorphisms.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400673
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Carcass and parts yield of broilers reared under a semi-extensive system Rev. Bras. Ciênc. Avic.
Faria,PB; Bressan,MC; Souza,XR de; Rossato,LV; Botega,LMG; Gama,LT da.
An experiment was carried out to evaluate carcass traits of male and female broilers of two genetic strains (Paraíso Pedrês and Pescoço Pelado), slaughtered at 65, 75, 85 and 95 days of age, and reared under a semi-extensive production system. The following parameters were evaluated: body weight at slaughter (BWs), carcass weight (CW), carcass yield (CY), parts yield, including breast, drumstick, thighs, back, neck, feet, wings, abdominal fat pad (AF), and giblets (gizzard, heart, liver). Paraíso Pedrês males presented higher BWs and CW. Paraíso Pedrês females had higher breast yield. Thighs and drumstick yields were higher in Pescoço Pelado males. Back yield was similar at 85 and 95 days of age, wing yield declined with age. AF yield was higher in Paraíso...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken; Carcass traits; Semi-extensive system.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000300003
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Metabolizable Energy Levels for Meat-Type Quails at Starter Phase Rev. Bras. Ciênc. Avic.
Muniz,JCL; Barreto,SLT; Viana,GS; Mencalha,R; Reis,RS; Hannas,MI; Barbosa,LMR; Maia,RC.
ABSTRACT This experiment was conducted to evaluate the effects of dietary nitrogen-corrected apparent metabolizable energy (AMEn) levels on meat-type quail performance and carcass traits from 1 to 14d of age. A total of 1120 not sexed meat-type quails were randomly distributed to seven treatments, with eight replicates with 20 quails each. A basal corn and soybean meal-based diet was formulated to meet or exceed quail nutritional requirements, except for ME. Graded levels of soybean oil were added to the basal diet in replacement, to sand, to obtain dietary treatments (2,600; 2,700; 2,800; 2,900; 3,000; 3,100 and 3,200 KcalAMEn/kg diet). Data were analyzed as one-way ANOVA and optimum AMEn levels were estimated using polynomial regression model. Increasing...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass traits; Coturnix coturnix coturnix; Performance.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000200197
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Sodium Requirement for Muscovy Ducks in Housing Rev. Bras. Ciênc. Avic.
Santos,ANA; Cruz,FGG; Oliveira Filho,PA; Farias,TM; Rufino,JPF; Viana Filho,GB.
ABSTRACT The present study aimed to determine the ideal sodium levels for muscovy ducks in housing. Two hundred and forty muscovy ducks of creole lineage were used, distributed in boxes with water and food ad libitum. The experimental design was completely randomized, where treatments were constituted by six nutritional plans (initial, growth and termination) with different sodium levels, and four replicates of 10 muscovy ducks each. The birds had weekly performance evaluations, and after 90 days, eight birds (four males and four females) in each treatment were slaughtered for evaluation of carcass traits. Data collected were subjected to Tukey test at 5% of significance. Differences were observed (p<0.05) in performance (feed intake and feed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass traits; Mineral; Performance; Poultry; Waterfowl.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000100300
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The Effect of Cyclic Heat Stress Applied to Different Broiler Chicken Brooding Stages on Animal Performance and Carcass Yield Rev. Bras. Ciênc. Avic.
Marchini,CFP; Fernandes,EA; Nascimento,MRBM; Araújo,EG; Guimarães,EC; Bueno,JPR; Fagundes,NS; Café,MB.
ABSTRACT The objective of this study was to evaluate the performance and carcass yield of broilers submitted to heat stress during different rearing stages. A total of 840 one-day-old CobbAvian48TM male broilers were housed in an experimental house equipped with conventional ventilation system and foggers. Birds were distributed according to a completely randomized design into four treatments, with six replicates of 35 birds each. The treatments consisted of: T1 (control) - birds reared under natural temperature and relative humidity conditions from 1 to 42 days of age; T2 - birds submitted to heat stress (HS) from 16 to 21 days of age; T3 - birds submitted to HS from 22 to 42 days of age; and T4 - birds submitted to HS from 16 to 42 days of age. Birds...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Air humidity; Carcass traits; Environmental temperature; Poultry; Thermal stress.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400765
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Technical Cashew Nutshell Liquid in Diets of Growing Meat-Type Quails Rev. Bras. Ciênc. Avic.
Sanches,LM; Eyng,C; Garcia,RG; Alves,GP; Sangalli,GG; Nunes,RV.
ABSTRACT The aim of this study was to evaluate the inclusion of technical cashew nutshell liquid (TCNSL) in European quails (Coturnix coturnix coturnix) diets from 1 to 35 days of age on the performance, carcass traits, and development of the digestive organs. 575 quails were distributed in a completely randomized design with five treatments (0%, 0.25%, 0.50%, 0.75%, and 1.00% TCNSL), five replicates, and 23 birds per experimental unit. Live performance was evaluated by weight gain, average feed intake, and feed to conversion ratio. The relative weight of the digestive organs (proventriculus, gizzard, pancreas, liver, small intestine, and large intestine), length of the small and large intestine, and carcass and parts yield (breast, wing, and leg) were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass traits; Cardanol; Meat-type quails; Natural additive.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100312
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Hatching Characteristics and Growth Performance of Eggs with Different Egg Shapes Rev. Bras. Ciênc. Avic.
Alasahan,S; Copur,AG.
ABSTRACT This study was carried out to identify the effect of the egg shape index on the hatchability, performance, and carcass yield of Japanese quails (Coturnix coturnix Japonica ). Eggs were incubated in three groups, according to three different egg shape index (SI) values (Group SI-I: 70.00-73.85%, Group SI-II: 73.86-77.71% and Group SI-III: 77.72-81.57%). Unhatched eggs weight loss (HEWL) was correlated with the egg shape index groups (SI-I: 18.51%, SI-II: 13.34% and SI-III: 13.96%; p<0.01), but not with the initial unhatched egg weight (HIEW), hatched egg weight (HEW), or eggshell weight of unhatched eggs (HSW) (p>0.05). The live weight of female and male chicks hatched from SI-I, SI-II, and SI-III egg shape index groups were compared at weeks...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Egg shape index; Hatchability of fertile eggs; Growth performance; Carcass traits.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100001
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Effects of Different Anti-Stressors on Growth, Serum Chemistry and Meat Quality Attributes of Japanese Quail Rev. Bras. Ciênc. Avic.
Rasul,M; Mehmood,S; Ahmad,S; Javid,A; Mahmud,A; Rehman,A; Usman,M; Hussain,J; Ahmad,M; Azhar,M.
ABSTRACT The aim of the present study was to evaluate the effect of different anti-stressors on growth performance, carcass traits, bloodchemistry and meat quality attributes of broiler Japanese quail. For this purpose, a total of 1,875 quail chicks were procured and arranged according to completely randomized design, birds were divided into 5 treatment groups having 5 replicates of 75 birds each. The treatments consisted of four anti-stressors i.e., synthetic anti-stressors (Vitamin C and Betaine) and natural anti-stressors (Turmeric and Chia Seed) along with a control group. Bird’s diets were supplemented with vitamin C, betaine, turmeric and chia seed @ 600 mg/kg, 700 mg /kg, 300 mg/kg and 7,000 mg/kg, respectively. After four weeks, 10 birds per...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Japanese quail; Anti-stressors; Growth performance; Carcass traits; Serum chemistry.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100307
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Expression of Myostatin (Mstn) and Myogenin (Myog) Genes in Zi And Rhine Goose and Their Correlation with Carcass Traits Rev. Bras. Ciênc. Avic.
Zhao,XH; Li,MY; Xu,SS; Sun,JY; Liu,GJ.
ABSTRACT The aim of this study was to investigate the effects of Myostatin (MSTN) and MyoGenin (MyoG) on goose skeletal muscle growth. In this study, MSTN and MyoG gene expression in breast and leg muscle of Zi and Rhine goose were detected by Real-time Polymerase Chain Reaction (PCR), and the correlations between genes expression levels and carcass traits were investigated. The results showed that the breast muscle weight and breast muscle percentage of Rhine goose were significantly higher than Zi goose (p<0.01). MSTN mRNA and MyoG mRNA expression in breast muscle of Zi goose were significantly higher than that of Rhine goose and the level of MSTN in leg muscle of Rhine was significantly higher than that of Zi goose (p<0.01). There was a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass traits; Goose; Genes; MRNA expression.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100306
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Corn texture and particle size in broiler diets Rev. Bras. Ciênc. Avic.
Benedetti,MP; Sartori,JR; Carvalho,FB; Pereira,LA; Fascina,VB; Stradiotti,AC; Pezzato,AC; Costa,C; Ferreira,JG.
The objective of this study was to evaluate the effect of corn texture and the particle size on broiler performance, carcass yield, nutrient digestibility, and digestive organ morphometrics. In Experiment I, 720 male Cobb chicks were distributed in a completely randomized experimental design with a 2 x 3 factorial arrangement, consisting two corn textures (dented and hard) and three corn particle sizes, was applied, with four replicates of 30 birds each. Corn particle size was classified according to geometric mean diameter (GMD) as fine - 0.46 mm; medium - 0.73 mm, and coarse - 0.87 mm. In Experiment II, 120 broiler chicks were used to evaluate corn digestibility during the periods of 16 to 22 days and 35 to 41 days of age, using the method of total...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass traits; Digestibility; GMD; Particle size; Performance.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000400002
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Comparative Study on Carcass Traits, Meat Quality and Taste in Broiler, Broiler Breeder and Aseel Chickens Rev. Bras. Ciênc. Avic.
Khan,U; Hussain,J; Mahmud,A; Khalique,A; Mehmood,S; Badar,IH; Usman,M; Jaspal,MH; Ahmad,S.
ABSTRACT Present study evaluated carcass and meat quality attributes of broilers, broiler breeders and Aseel chickens. Sixty birds from each chicken genotype (broiler, broiler breeder and Aseel chickens; five-wk-old broilers and 60-wk-old Aseel chickens and broiler breeders) were evaluated. Birds were maintained under similar environment for 21 days, and then slaughtered to analyze their carcass qualitative and organoleptic characteristics. No carcass yield differences were detected among genotypes. Aseel chickens had heavier neck, followed by broiler breeder and broiler (p<0.0001). Higher liver (p<0.0001), intestine (p<0.0001), ribs and back (p=0.0014) yields were obtained in broilers than in broiler breeders and Aseel chickens. Females showed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aseel; Breeder; Broiler; Carcass traits; Meat quality.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100316
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The Effects of Threonine on Performance Parameters, Carcass Traits, Visceral Organ Indices and Serum Biochemical Parameters of Linwu Ducks, Aged 4 to 8 Weeks Rev. Bras. Ciênc. Avic.
Jiang,G; Li,C; Huang,X; Zhang,X; Hu,Y; Wang,X; Wu,D; Dai,Q.
ABSTRACT This study was conducted to establish dietary threonine (Thr) levels for Linwu ducks, aged 4 to 8 wk. Experimental diets formulated to contain 0.56, 0.61, 0.66, 0.71, 0.76, and 0.81% Thr fed to Linwu ducks. A total of 360 healthy Linwu female ducks with similar body weight (1183.89±3.83 g) were randomly divided into six groups, with five replicates in each group, and 12 ducks in each replicate. Samples were collected at 8 wk for the determination of growth performance, carcass traits, visceral organ indices, and serum biochemical parameters. As a result of this study, Thr level had no significant influence on the final weight, the daily gain, feed/gain ratio, and average daily intake (p>0.05). Similarly, there were no significant effects of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Linwu duck; Threonine requirement; Growth performance; Carcass traits; Biochemical parameters.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000200387
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Ractopamine in diets for finishing gilts R. Bras. Zootec.
Watanabe,P.H.; Thomaz,M.C.; Pascoal,L.A.F.; Ruiz,U.S.; Daniel,E.; Cristani,J..
An experiment was carried out using 468 gilts, with an initial weight of 84.77 ± 7.20 kg and allotted into 36 pens to evaluate the effect of the addition of ractopamine in the diets on performance, characteristics and yields of carcass comercial cuts, composition and retail cuts of ham. It was used a randomized block design with four levels of ractopamine (0, 5, 10 and 15 mg/kg of diet) and nine replicates with 13 animals per experimental unit. The initial body weight of the animals was the criterion used to form the blocks. It was not observed any effects of levels of ractopamine on daily weight gain of the animals. Daily feed intake presented a linear reduction when the level of dietary ractopamine was increased. Feed conversion of the animals was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Β adrenergic agonist; Carcass traits; Nutrient partitioning agent; Performance.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000400017
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Sticky coffee hull silage on the feeding of growing and finishing pigs R. Bras. Zootec.
Carvalho,Paulo Levi de Oliveira; Moreira,Ivan; Furlan,Antonio Claudio; Paiano,Diovani; Piano,Liliane Maria; Sierra,Lina Maria Peñuela.
Two experiments were carried out with the objective of evaluating the performance and carcass traits of growing and finishing pigs fed rations with sticky coffee hull silage. In experiment 1, the coffee hulls were ground through a 4-mm screen and ensiled with 30% water and enzymatic-bacterial inoculant and evaluated in digestibility trial with 15 crossbred pigs distributed in a completely randomised design. Overall, the ensiling process did not improve the digestibility of the sticky coffee hulls. In experiment 2, it was used 60 pigs (32.52 to 59.58 kg) in the growing phase and 55 pigs (61.70 to 90.27 kg) in the finishing phase, distributed in a completely randomised design with five diets (0, 4, 8, 12 and 16% of sticky coffee hull silage) and six...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative feeds; By-product; Carcass traits; Digestibility; Performance.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000200016
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Using juniper berry ( Juniperus communis ) as a supplement in Japanese quail diets R. Bras. Zootec.
Inci,Hakan; Ozdemir,Gokce; Sengul,Ahmet Yusuf; Sogut,Bunyamin; Nursoy,Hüseyin; Sengul,Turgay.
ABSTRACT The present study was conducted to determine the effects of supplemented juniper berry (Juniperus communis) on fattening performance and some carcass traits of quails. A total of 150 one-day-old Japanese quail chicks were randomly divided into five groups (one control and four treated groups) with three replicates. Four different juniper berry levels (0.5, 1, 1.5, and 2%) and a control treatment (0%) were added to the diet. Juniper berry supplementation to the diets initiated at the end of the 1st week and sustained for seven weeks. Live weight, feed intake, and feed conversion ratio during the trial and some carcass traits after slaughter were determined. Juniper berry supplementation in the diet during seven weeks of growing period significantly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aromatic plant; Carcass traits; Growth performance.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000500230
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Selection for higher body weight in Nelore cattle is effective in achieving an increase of longissimus muscle area without reducing subcutaneous fat thickness R. Bras. Zootec.
Pinheiro,Tiago Roque; Mercadante,Maria Eugênia Zerlotti; Albuquerque,Lucia Galvão de; Bonilha,Sarah Figueiredo Martins; Monteiro,Fábio Morato.
The objectives of this study were to estimate heritabilities and genetic and phenotypic correlations between carcass traits measured by ultrasound and other economically important traits generally used as selection criteria in beef cattle and to estimate the genetic changes in the carcass traits as a result of selection for post-yearling weight. Carcass traits measured by ultrasound at two ages (12 and 18 months) and the correlation of these traits with weight, hip height and body condition score of males (yearling) and females (post-yearling) were analyzed. Multi-trait analysis was performed using the restricted maximum likelihood method under an animal model. To demonstrate the effect of selection for growth, phenotypic and expected breeding value means...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass traits; Correlated responses; Genetic correlation; Ultrasound; Zebu cattle.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600016
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The effects of protein, amino acid, and dietary electrolyte balance on broiler chicken performance and blood parameters under heat stress Animal Sciences
Saki, Ali Asghar; Maleckey, Mostafa; Johari, Rahele; Mirzaie Goudarzi, Sara; Abdolmaleki, Mansoureh.
The effect of crude protein (CP), amino acid (AA), and dietary electrolyte balance (DEB) were evaluated on blood parameters, carcass traits, and broiler performance under heat stress (29-34°C). A total of 540 male chickens (Ross 308) were allocated to 12 diets with factorial arrangement 2 × 2 × 3, using a completely randomized design with three replicates of 15 chickens in grower (13 to 26 days) and finisher (27 to 42 days) periods. and 120, 220, and 320 mEq kg-1 DEB. The level of 21% CP increased body weight gain (BWG) and decreased feed conversion ratio (FCR) at grower period (p < 0.05). In contrast, 20% CP level decreased BWG and increased FCR at finisher period (p < 0.05). Further, 20% CP level reduced blood sodium and blood electrolyte balance...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Standard and additional of digestible amino acid; Heat stress; Carcass traits.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/30747
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