动物营养学报2016，Vol.28Issue(11)：3445-3452,8.DOI:10.3969/j.issn.1006-267x.2016.11.011
动态细分饲粮营养供给对肉鸡生产性能、肉品质、氮与磷代谢率及血清生化指标的影响
Effects of Dynamic Segmentation Dietary Nutrient Supply on Performance, Meat Quality, Utilization of Nitrogen and Phosphorus and Serum Biochemical Indexes of Broilers
摘要
Abstract
This experiment was conducted to investigate the effects of dynamic segmentation dietary nutrient supply on the performance, meat quality, utilization of nitrogen and phosphorus and serum biochemical indexes of broilers according to the growth curve and dynamic nutritional needs of broilers. A total of 240 one⁃day⁃old Arbor Acres ( AA) broilers ( male and female in half) were randomly assigned into 3 groups with 8 replicates per group and 10 broilers per replicate. Group A:one nutrient standard was used for every 3.5 days except that one nutrient standard was used for 1 to 7 days of age. Group B: one nutrient standard was used for every 7 days. Group C: one nutrient standard was used for every 14 days. The trial lasted for 42 days. The results showed as follows:1) the average daily gain ( ADG) of broilers in group C was significantly higher than that in groups A and B ( P<0.05) , and the ratio of feed to gain ( F/G) in group C was significantly lower than that in group A ( P<0.05) . No significant differences were found between group A and B in growth performance indexes of broilers ( P>0.05) . There was no significant difference in the meat quality of broilers by different dynamic segmentation dietary nutrient supply ( P>0.05) . 2) There were no significant differences in the utili⁃zation of nitrogen and phosphorus of broilers by different dynamic segmentation dietary nutrient supply ( P>0.05) . 3) The content of serum urea nitrogen ( UREA) of broilers in group C was significant higher than that in group A at 28 days of age (P<0.05), and the content of serum UREA in group C was significant higher than that in groups A and B at 42 days of age (P<0.05). However, there was no significant difference be⁃tween group A and B in the content of serum UREA of broilers (P>0.05). 4) There were no significant differences in the content of serum corticosterone ( CORT) and total antioxidant capacity ( T⁃AOC) of broilers by different dynamic segmentation dietary nutrient supply ( P>0.05) . In conclusion, the performance of broil⁃ers reaches the best when one nutrient standard was used for every 14 days. The dietary amino acid balance is better fulfilled when one nutrient standard is used for every 7 days considering the complexity of the actual op⁃eration.关键词
动态营养/肉品质/代谢率/血清指标/应激Key words
dynamic nutrition/meat quality/utilization/serum index/stress分类
农业科技引用本文复制引用
黄向阳,刘国华,闫海洁,常文环,张姝,蔡辉益..动态细分饲粮营养供给对肉鸡生产性能、肉品质、氮与磷代谢率及血清生化指标的影响[J].动物营养学报,2016,28(11):3445-3452,8.基金项目
国家肉鸡产业技术体系 （）
