饲粮能量和粗蛋白质水平对5～10周龄肉鸭生长发育、肌肉品质的影响

发布时间：2018-03-19 09:51

本文选题：苏邮号肉鸭　切入点：代谢能　出处：《四川农业大学学报》2017年03期 　论文类型：期刊论文

【摘要】：【目的】为探讨日粮代谢能水平与粗蛋白质含量对5~10周龄肉鸭生长发育性能及肌肉品质的影响。【方法】选取540只5周龄苏邮2号肉鸭,采用3×3两因子设计法,设置9个处理组,每组3个重复,每个重复公母各10只,能量水平为:高代谢能(HE,12.20 MJ/kg)、中代谢能(ME,11.80 MJ/kg)和低代谢能(LE,11.40 MJ/kg),蛋白水平为:高蛋白质(HP,16.80%)、中蛋白质(MP,15.30%)和低蛋白质(LP,13.80%)。【结果】结果表明:(1)第1、2、4、5、6组试验鸭平均日增重显著地高于第3、9组(P0.05),第3、9组料重比显著地高于其余各组(P0.05),第5、6组试验鸭体斜长显著地高于第1、9组(P0.05)。饲粮代谢能和粗蛋白质水平对平均日增重有显著的互作效应(P0.05),粗蛋白质水平对体斜长有显著的影响(P0.05)。(2)第5组试验鸭半净膛率、全净膛率、腿肌率、胸肌率与第1组相比,差异达到显著水平(P0.05),第6组全净膛率与第1组间差异显著(P0.05),第5、8组腿肌率显著地高于第1、2组(P0.05),第5组胸肌率与第3组间差异显著(P0.05)。粗蛋白主效应在半净膛率、全净膛率间达到显著水平(P0.05),胸肌率的代谢能主效应显著(P0.05),腿肌率的代谢能粗蛋白的互作效应显著(P0.05)。(3)肌苷酸含量在各个试验组间以及不同肌肉组织间的差异不显著(P0.05),但肌苷酸在胸肌中的含量普遍要高于腿肌,代谢能、粗蛋白及代谢能粗蛋白的互作效应均不显著(P0.05)。第8组试验鸭胸肌粗脂肪含量显著地高于第1组(P0.05),胸肌粗脂肪含量代谢能粗蛋白互作效应显著(P0.05)。第7组试验鸭腿肌p H值显著地高于第8组(P0.05),代谢能粗蛋白间的互作效应显著(P0.05)。【结论】在相同饲养管理条件下,采食代谢能11.80 MJ/kg、粗蛋白15.30%的饲粮有利于5~10周龄苏邮2号肉鸭生产性能的提高。
[Abstract]:[objective] to investigate the effects of dietary metabolic energy level and crude protein content on growth and development performance and muscle quality of 5-week-old meat ducks. [methods] 540 5-week-old Suyou No.2 ducks were selected and 9 treatment groups were set up by 3 脳 3 two-factor design. There were 3 duplicates in each group, 10 males and 10 females in each group. The energy levels were: high metabolizable energy (HEN) 12.20 MJ / kg, ME11.80 MJ / kg) and low metabolizable energy (LE11.40 MJ / kg), protein levels were: high protein HP1 16.80mg / kg, medium protein LP13.80kg / kg) and low protein LP13.80kg / kg respectively. [results] the results showed that the average daily gain of the experimental ducks was significantly higher than that of the control group (1 / 1). The feed weight ratio of group 3 ~ 9 was significantly higher than that of other groups, and the oblique length of group 5 ~ (6) was significantly higher than that of group 1 (P 0.05). Dietary metabolic energy and crude protein levels had significant interaction effects on average daily gain (P 0.05). Level had significant effect on the oblique length of the body. (P0.05. 0. 0. 0. 2) the half-bore rate of the tested ducks in the 5th group was less than that in the control group. Compared with group 1, the rate of total muzzle, leg muscle and pectoralis muscle were compared with those in group 1. The difference reached a significant level (P 0.05), and the difference between group 6 and group 1 was significant (P 0.05). The rate of leg muscle in group 5 was significantly higher than that in group 1 (P 0.05), and the rate of pectoralis in group 5 was significantly higher than that in group 3 (P 0.05). There was no significant difference in the content of inosinic acid among the experimental groups and among different muscle tissues. The main metabolic energy effect of pectoralis muscle rate was significant (P0.05), and the interaction effect of metabolizable energy crude protein (CP) of leg muscle rate was significant (P0.05. 0. 0. 3) the content of inosinic acid was not significantly different among the experimental groups and the different muscle tissues. The content of inosinic acid in pectoralis muscle was generally higher than that in leg muscle. Metabolic energy, The interaction effect of crude protein and metabolizable crude protein was not significant (P 0.05). The content of crude fat in breast muscle of experimental group 8 was significantly higher than that of group 1 (P 0.05), and the interaction effect of crude fat content of pectoralis muscle with metabolic energy crude protein was significant (P 0.05). The value of pH was significantly higher than that of group 8 (P0.05), and the interaction effect of metabolic energy crude protein was significant (P 0.05). [conclusion] under the same feeding and management conditions, The dietary intake of 11.80 MJ / kg and 15.30% of crude protein was beneficial to the improvement of the performance of Suyou No. 2 duck at the age of 5 ~ 10 weeks.
【作者单位】：江苏农牧科技职业学院;
【基金】：江苏省农业科技自主创新资金项目(CX(11)1030) 江苏省农业三新工程项目(SXGC[2012]384) 泰州市科技支撑计划项目(TN201418)
【分类号】：S834.5

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