广西师范大学学报（自然科学版） ›› 2024, Vol. 42 ›› Issue (3): 198-205.doi: 10.16088/j.issn.1001-6600.2023051101

• 研究论文 • 上一篇    下一篇

发酵红薯渣对黄羽肉鸡生长性能、屠宰性能和肉品质的影响

覃金城1, 梁丽芬1, 孙涛1, 叶泉清1, 陈静1, 宾石玉1,2*   

  1. 1.广西师范大学 生命科学学院, 广西 桂林 541006;
    2.珍稀濒危动植物生态与环境保护教育部重点实验室(广西师范大学), 广西 桂林 541006
  • 收稿日期:2023-05-11 修回日期:2023-07-16 出版日期:2024-05-25 发布日期:2024-05-31
  • 通讯作者: 宾石玉(1963—), 男, 广西全州人, 广西师范大学教授, 博士。E-mail: binsy@gxnu.edu.cn
  • 基金资助:
    广西科技计划项目(桂科AB22035039, 桂科AB23026022, 桂科AB19259012); 广西高等教育本科教学改革工程项目(2022JGZ113)

Effects of Fermented Sweet Potato Residue on Growth Performance, Slaughter Performance and Meat Quality of Yellow-Feathered Broilers

QIN Jincheng1, LIANG Lifen1, SUN Tao1, YE Quanqing1, CHEN Jing1, BIN Shiyu1,2*   

  1. 1. College of Life Sciences, Guangxi Normal University, Guilin Guangxi 541006, China;
    2. Key Laboratory of Ecology of Rare and Endangered Species and Environmented Protection (Guangxi Normal University),
    Ministry of Education, Guilin Guangxi 541006, China
  • Received:2023-05-11 Revised:2023-07-16 Online:2024-05-25 Published:2024-05-31

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摘要： 本文旨在研究日粮添加不同水平发酵红薯渣对黄羽肉鸡生长性能、屠宰性能和肉品质的影响。先应用强迫饲喂代谢试验测定黄羽肉鸡对红薯渣发酵饲料营养物质的表观代谢率。再选用360羽1日龄黄羽肉鸡随机分为Ⅰ、Ⅱ、Ⅲ和Ⅳ 4个处理组,每组6个重复,每重复15羽。对照组(Ⅰ组)饲喂基础日粮,试验Ⅱ组、Ⅲ组、Ⅳ组1~21日龄分别饲喂基础日粮+10、30和50 g·kg-1的发酵干红薯渣(等量代替玉米),22~42、43~70日龄分别饲喂基础日粮+50、80和100 g·kg-1的发酵干红薯渣(等量替代玉米),试验期为70 d。结果显示:黄羽肉鸡对发酵红薯渣营养物质粗蛋白质、粗脂肪、粗灰分、粗纤维和总能的表观代谢率分别为63.67%、65.72%、70.85%、72.45%和87.93%;日粮中添加发酵干红薯渣等量替代玉米对黄羽肉鸡的平均日增重、平均日采食量和料重比的影响不显著(P>0.05);与对照组相比,Ⅱ、Ⅲ和Ⅳ组胸肌和腿肌的pH值及红度(a*)值提高(P>0.05),滴水损失率和剪切力降低(P>0.05),蒸煮损失率显著降低(P<0.05)。在日粮中添加50~100 g·kg-1发酵干红薯渣等量替代玉米可改善黄羽肉鸡肌肉品质。

关键词: 发酵红薯渣, 黄羽肉鸡, 生长性能, 屠宰性能, 肉品质

Abstract: This study was aimed to investigate the effects of different levels fermented sweet potato residue on the growth performance, slaughter performance and meat quality of yellow-feathered broilers. Firstly, the apparent metabolic rates of nutrients in fermented sweet potato residue were determined by strong feeding metabolic test; then, 360 one-day-age yellow-feathered broilers were randomly divided into 4 groups (Ⅰ, II, III, IV), each with 6 replicates and 15 chickens per replicate. The broilers in the test group I were fed a basal diet as control group, during 1 to 21 days of age, the test group II, III and IV were fed with 10、 30 and 50 g·kg-1 fermented sweet potato residue instead of corn in the basic diet, respectively; during 22 to 42 days of age and 43 to 70 days age were fed with 50、 80 and 100 g·kg-1 fermented sweet potato residue instead of corn in the basic diet, respectively. The trial period was 70 days. The results showed that the apparent metabolic rate of nutrients in fermented sweet potato residue of yellow feather broilers was as follow: crude protein 63.67%, crude fat 65.72%, ash 70.85%, crude fiber 72.45% and gross energy 87.93%. Fermented sweet potato residue equivalent instead of corn had no significant effect on average daily gain, average daily feed intake and feed to gain ratio of yellow-feathered broilers (P>0.05). Compared with the control group, the slaughter rate, clearance rate, chest muscle rate, leg muscle rate and abdominal fat rate had no significant effect among the test groups (P>0.05). Group II, III, IV improved the pH values and a* values of the pectoral muscles and leg muscles, reduced the drip loss, shear stress (P>0.05). The cooking loss of pectoral muscles and leg muscles reduced significantly (P<0.05). To sum up, the addition of 50 g·kg-1 to 100 g·kg-1 of fermented sweet potato residue equivalent instead of corn can improve meat quality of yellow-feathered broilers.

Key words: fermented sweet potato residue, yellow-feathered broilers, growth performance, slaughter performance, meat quality

中图分类号:  S831.5

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