屠宰前禁食时间对肉鸡体重损失、屠宰性能和血脂指标的影响
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摘要
本试验旨在研究宰前不同禁食时间对艾拔益加(AA)肉鸡体重损失、屠宰性能和血脂指标的影响。将50只42日龄AA肉鸡随机分为5组,每组10只,分别禁食0(对照)、6、12、18、24 h后,宰杀取样,测定体重损失、屠宰性能和血脂指标。结果表明:随着禁食时间的延长,宰前体重呈显著下降(P<0.05),体重损失和体重损失率显著增长(P<0.05),屠宰率和胸肌率均有显著升高(P<0.05),胸肌和腿肌含水量均有显著降低(P<0.05),血清甘油三酯浓度显著降低(P<0.05)。综上,屠宰前适度禁食(6～12 h)能够减少肉鸡体重损失,可以避免长时间禁食(>18 h)造成的肉鸡体重损失显著增加、屠宰性能显著降低而带来的经济损失。
引文
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[3]Ozkan S,Akbas Y,Altan O,et al.The effect of short-term fasting on performance traits and rectal temperature of broilers during the summer season[J].Brit Poult Sci,2003,44(1):88-95.
[4]吴妙宗,王海宏,蔡辉益,等.禁食时间对3周龄肉用仔鸡消化道内容物及其排空率变化的影响[J].中国畜牧杂志,1999,35(5):25-26.
[5]Menconi A,Kuttappan V A,Hernandez-Velasco X,et al.Evaluation of a commercially available organic acid product on body weight loss,carcass yield,and meat quality during preslaughter feed withdrawal in broiler chickens:A poultry welfare and economic perspective1[J].Poult Sci,2014,93(2):448-455.
[6]周顺伍,刘敏雄,王柱三.不同饲养水平北京鸭禁食代谢的初步观察[J].中国畜牧杂志,1981(6):9-11.
[7]Delezie E,Swennen Q,Buyse J,et al.The effect of feed withdrawal and crating density in transit on metabolism and meat quality of broilers at slaughter weight[J].Poult Sci,2007,86(7):1414-1423.
[8]Saki A A,Azadinia B,Khosravinia H A,et al.Effect of preslaughter feed withdrawal and sex crop,carcass characteristics and some blood parameters in broiler chicken[J].Int J Agr Tech,2011,7(5):1233-1245.
[9]Warriss P D,Kestin S C,Brown S N,et al.Depletion of glycogen reserves in fasting broiler chickens[J].Brit Poult Sci,1988,29(1):149-154.
[10]Torchon E,Ray R,Hulver M W,et al.Fasting rapidly increases fatty acid oxidation in white adipose tissue of young broiler chickens[J].Adipocyte,2017,6(1):33-39.
[11]Veerkamp C H.The Influence of Fasting and Transport on Yields of Broilers[J].Poult Sci,1978,57(3):634-638.
[12]Ali M S,Kang G H,Joo S T.A review:influences of preslaughter stress on poultry meat quality[J].Asian-Aust J Anim Sci,2008,21(6):912-916.
[13]Haslinger M,Leitgeb R,Bauer F,et al.Slaughter yield and meat quality of chicken at different length of preslaughter feed withdrawal[J].Bodenkultur,2007,58(1):67-72.
[14]贾小翠,李春保,徐幸莲,等.禁食对僵直前后鸡肉加工特性的影响[J].食品科学,2011,32(19):23-27.
[15]Cheng Q,Sun D W.Factors affecting the water holding capacity of red meat products:a review of recent research advances[J].Crit Rev Food Sci,2008,48(2):137-159.
[16]Auclair N,Melbouci L,St-Pierre D,et al.Gastrointestinal factors regulating lipid droplet formation in the intestine[J].Exp Cell Res,2018,363(1):1-14.
[17]Cui C,Shen C J,Jia G,et al.Effect of dietary Bacillus subtilis on proportion of Bacteroidetes and Firmicutes in swine intestine and lipid metabolism[J].Genet Mol Res,2013,12(2):1766-1776.
[18]Sinha R A,Singh B K,Yen P M.Direct effects of thyroid hormones on hepatic lipid metabolism[J].Nat Rev Endocrinol,2018,14(5):259-269.
[19]Nijdam E,Delezie E,Lambooij E,et al.Feed withdrawal of broilers before transport changes plasma hormone and metabolite concentrations[J].Poult Sci,2005,84(7):1146-1152.
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