Wang Jing, Zhang Mengyu, Gou Zhongyong, Jiang Shouqun, Zhang Yingzhong, Wang Minghuai, Tang Xuxiao, Xu Baohua
Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, China.
Institute of Animal Science, Guangdong Academy of Agricultural Sciences, State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, 510640, China.
Animals (Basel). 2020 Feb 7;10(2):266. doi: 10.3390/ani10020266.
The study was carried out to evaluate the influence of polysaccharides from oleifera cake (CCP) in Lingnan yellow broilers diet from 1 to 50 days. Growth performance, carcass traits, meat quality, blood profile, and caecum microorganisms were characterized by three different levels of 0, 200 and 800 mg/kg CCP supplementation. Dietary treatment did not affect the productive trait from 1 to 50 days of age, except that average daily feed intake decreased at 42 days of age ( < 0.05). Additionally, the effects of CCP on various organs were different. The weight ( < 0.01) and index ( < 0.05) of bursa of Fabricius gradually decreased with the higher CCP supplementation at 21 days of the broilers diet. The gizzard weights were all higher when the broilers were fed with higher CCP concentration at 21, 42, and 50 days, respectively ( < 0.05). The weight and index of the spleen increased most with low CCP concentration (200 mg/kg) at 42 and 50 days. Moreover, CCP addition had no significant effect on meat quality except cooking loss ( < 0.05) and yellowness of meat color ( < 0.05). In the study of blood metabolism at 50 days of broilers, the concentration of calcium ( < 0.01), total cholesterol ( < 0.05) and uric acid ( < 0.01) decreased with higher CCP supplementation. CCP increased the albumin concentration ( < 0.001) that was highest at 200 mg/kg CCP supplementation. The addition of CCP increased the number of and ( < 0.01) in the caecum of broilers, and had the potential to inhibit the growth of ( = 0.11). Results showed that CCP played a role in improving intestinal flora and the immunity of yellow broilers.
本研究旨在评估1至50日龄岭南黄羽肉鸡日粮中油茶籽饼多糖（CCP）的影响。通过添加0、200和800mg/kg三种不同水平的CCP来表征生长性能、胴体性状、肉质、血液指标和盲肠微生物。日粮处理对1至50日龄的生产性能没有影响，除了42日龄时平均日采食量下降（P<0.05）。此外，CCP对各器官的影响不同。在肉鸡日粮21日龄时，随着CCP添加量的增加，法氏囊重量（P<0.01）和指数（P<0.05）逐渐下降。在21、42和50日龄时，当肉鸡饲喂较高CCP浓度日粮时，肌胃重量均较高（P<0.05）。在42和50日龄时，低CCP浓度（200mg/kg）下脾脏重量和指数增加最多。此外，除烹饪损失（P<0.05）和肉色黄度（P<0.05）外，添加CCP对肉质没有显著影响。在肉鸡50日龄血液代谢研究中，随着CCP添加量的增加，钙浓度（P<0.01）、总胆固醇（P<0.05）和尿酸（P<0.01）下降。CCP提高了白蛋白浓度（P<0.001），在添加200mg/kg CCP时最高。添加CCP增加了肉鸡盲肠中双歧杆菌和乳酸杆菌的数量（P<0.01），并有可能抑制大肠杆菌的生长（P=0.11）。结果表明，CCP在改善黄羽肉鸡肠道菌群和免疫力方面发挥了作用。
