动物营养学报 >

2022 , Vol. 34 >Issue 7: 4359 - 4368

DOI: https://doi.org/10.3969/j.issn.1006-267x.2022.07.027

研究论文 RESEARCH PAPER

饲粮添加乙酸钠对白羽肉鸡生长性能、屠宰性能、肉品质和血清生化指标的影响

  • 秦昆鹏 ,
  • 杨涛 ,
  • 王永芳 ,
  • 赵玉蓉
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  • 湖南农业大学动物科学技术学院, 长沙 410128
秦昆鹏(1996-),男,湖南娄底人,硕士研究生,动物营养与饲料科学专业。E-mail:1178843458@qq.com

收稿日期: 2021-12-15

  网络出版日期: 2022-07-14

基金资助

湖南省教育厅重点项目（18A087）

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Effects of Dietary Sodium Acetate on Growth Performance, Slaughter Performance, Meat Quality and Serum Biochemical Indices of White-Feathered Broilers

  • QIN Kunpeng ,
  • YANG Tao ,
  • WANG Yongfang ,
  • ZHAO Yurong
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  • College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China

Received date: 2021-12-15

  Online published: 2022-07-14

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摘要

本试验旨在探究饲粮中添加不同水平乙酸钠对白羽肉鸡生长性能、屠宰性能、肉品质和血清生化指标的影响。采用单因素完全随机设计，选择288只7日龄健康、体重相近的罗斯308白羽肉鸡，随机分为6个组，每组6个重复，每个重复8只鸡。各组分别饲喂基础饲粮（对照组）及在基础饲粮中添加不同水平（0.1%、0.2%、0.3%、0.4%和0.5%）乙酸钠的饲粮。试验期35 d。结果表明：1）各组白羽肉鸡平均日增重、平均日采食量和料重比之间均无显著差异（P>0.05）。2）各组白羽肉鸡屠宰率、半净膛率、全净膛率、胸肌率和腿肌率之间均无显著差异（P>0.05）。3）各组白羽肉鸡胸肌亮度（L*）和黄度（b*）值、24和48 h滴水损失以及屠宰后24 h pH（pH24 h）之间均无显著差异（P>0.05），而0.2%、0.4%和0.5%乙酸钠添加组胸肌屠宰后45 min pH（pH45 min）显著低于对照组（P<0.05），0.1%和0.3%乙酸钠添加组胸肌pH45 min与对照组相比无显著差异（P>0.05）；0.1%、0.2%、0.3%和0.5%乙酸钠添加组胸肌红度（a*）值显著高于对照组（P<0.05），0.4%乙酸钠添加组胸肌a*值与对照组相比无显著差异（P>0.05）；0.3%、0.4%和0.5%乙酸钠添加组胸肌系水力显著高于对照组（P<0.05），0.1%和0.2%乙酸钠添加组胸肌系水力与对照组相比无显著差异（P>0.05）。4）各组白羽肉鸡腿肌pH45 min、pH24 h、L*、a*和b*值以及24和48 h滴水损失之间均无显著差异（P>0.05），0.3%、0.4%和0.5%乙酸钠添加组腿肌系水力显著高于对照组（P<0.05），0.1%和0.2%乙酸钠添加组腿肌系水力与对照组相比无显著差异（P>0.05）。5）各组白羽肉鸡血清葡萄糖（GLU）含量和谷草转氨酶（AST）活性之间无显著差异（P>0.05）。0.4%和0.5%乙酸钠添加组血清甘油三酯（TG）含量显著高于对照组（P<0.05），0.1%、0.2%和0.3%乙酸钠添加组血清TG含量与对照组相比无显著差异（P>0.05）；0.1%、0.2%、0.4%和0.5%乙酸钠添加组血清总胆固醇（TC）含量显著高于对照组（P<0.05），0.3%乙酸钠添加组血清TC含量与对照组相比无显著差异（P>0.05）；0.1%、0.2%、0.3%、0.4%和0.5%乙酸钠添加组血清低密度脂蛋白胆固醇（LDL-C）含量均显著高于对照组（P<0.05）；0.2%、0.4%和0.5%乙酸钠添加组血清高密度脂蛋白胆固醇（HDL-C）含量显著高于对照组（P<0.05），0.1%和0.3%乙酸钠添加组血清HDL-C含量与对照组相比无显著差异（P>0.05）；0.4%和0.5%乙酸钠添加组血清谷丙转氨酶（ALT）活性显著高于对照组（P<0.05），0.1%、0.2%、0.3%乙酸钠添加组血清ALT活性与对照组相比无显著差异（P>0.05）。综上所述，饲粮添加乙酸钠对白羽肉鸡生长性能和屠宰性能无显著影响，但对肉品质和血清生化指标有显著影响；添加适宜水平的乙酸钠可以一定程度地改善肌肉a*值和系水力，但过量添加会导致血脂上升、肝脏受损；本试验条件下，白羽肉鸡饲粮中乙酸钠适宜添加水平为0.3%。

关键词： 乙酸钠; 白羽肉鸡; 生长性能; 屠宰性能; 肉品质; 血清生化指标

本文引用格式

秦昆鹏 , 杨涛 , 王永芳 , 赵玉蓉 . 饲粮添加乙酸钠对白羽肉鸡生长性能、屠宰性能、肉品质和血清生化指标的影响[J]. 动物营养学报, 2022 , 34(7) : 4359 -4368 . DOI: 10.3969/j.issn.1006-267x.2022.07.027

Abstract

This experiment was conducted to investigate the effects of different dietary sodium acetate levels on growth performance, slaughter performance, meat quality and serum biochemical indices of white-feathered broilers. A total of 288 healthy Ross 308 white-feathered broilers of 7-day-old with similar body weight were randomly divided into 6 groups with 6 replicates per group and 8 broilers per replicate in a single-factor completely randomized design. Broilers in each group were fed a basal diet (control group) and the basal diet supplemented with different levels of sodium acetate (0.1%, 0.2%, 0.3%, 0.4% and 0.5%), respectively. The experiment lasted for 35 days. The results showed as follows:1) there were no significant differences in average daily gain, average daily feed intake and feed to gain ratio of white-feathered broilers among all groups (P>0.05). 2) There were no significant differences in dressed rate, half-eviscerated rate, all eviscerated rate, breast muscle rate and leg muscle rate of white-feathered broilers among all groups (P>0.05). 3) There were no significant differences in the brightness (L*) and yellowness (b*) values of breast muscle, drop loss at 24 and 48 h and pH at 24 h (pH24 h) after slaughter among all groups (P>0.05). However, the pH of breast muscle at 45 min (pH45 min) after slaughter in 0.2%, 0.4% and 0.5% sodium acetate supplemental groups was significantly lower than that in the control group (P<0.05), and the pH45 min in breast muscle in 0.1% and 0.3% sodium acetate supplemental groups had no significant difference compared with the control group (P>0.05). The redness (a*) value of breast muscle in 0.1%, 0.2%, 0.3% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in a* value of breast muscle in 0.4% sodium acetate supplemental group compared with the control group (P>0.05). The water-holding capacity of breast muscle in 0.3%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in the water-holding capacity of breast muscle in 0.1% and 0.2% sodium acetate supplemental groups compared with the control group (P>0.05). 4) There were no significant differences in leg muscle pH45 min, pH24 h, values of L*, a* and b*, and drip loss at 24 and 48 h among all groups (P>0.05). The water-holding capacity of leg muscle in 0.3%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in leg muscle water-holding capacity in 0.1% and 0.2% sodium acetate supplemental groups compared with the control group (P>0.05). 5) There were no significant differences in serum glucose (GLU) content and aspartate aminotransferase (AST) activity among all groups (P>0.05). The serum triglyceride (TG) content in 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in serum TG content in 0.1%, 0.2% and 0.3% sodium acetate supplemental groups compared with the control group (P>0.05). The serum total cholesterol (TC) content in 0.1%, 0.2%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in serum TC content in 0.3% sodium acetate supplemental group compared with the control group (P>0.05). The serum low-density lipoprotein cholesterol (LDL-C) content in 0.1%, 0.2%, 0.3%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05). The serum high-density lipoprotein cholesterol (HDL-C) content in 0.2%, 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while the serum HDL-C content in 0.1% and 0.3% sodium acetate supplemental groups was not significantly different from that in the control group (P>0.05). The serum alanine aminotransferase (ALT) activity in 0.4% and 0.5% sodium acetate supplemental groups was significantly higher than that in the control group (P<0.05), while there was no significant difference in ALT activity in 0.1%, 0.2% and 0.3% sodium acetate supplemental groups compared with the control group (P>0.05). In conclusion, dietary sodium acetate has no significant effects on growth performance and slaughter performance of white-feathered broilers, but has significant effects on meat quality and serum biochemical indices. The appropriate supplemental level of sodium acetate can improve muscle a* value and water-holding capacity to a certain extent, but excessive addition will lead to the rise of blood lipids and liver damage. Under the conditions of this experiment, the optimal dietary sodium acetate supplemental level for white-feathered broilers is 0.3%.

Key words： sodium acetate; white-feathered broilers; growth performance; slaughter performance; meat quality; serum biochemical indices

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