Effect of crude protein concentration and dietary electrolyte balance on litter quality, foot pad dermatitis, growth performance and processing yields in two medium heavy turkey hybrids.
Effect of crude protein concentration and dietary electrolyte balance on litter quality, foot pad dermatitis, growth performance and processing yields in two medium heavy turkey hybrids.
复制标题
粗蛋白浓度和日粮电解质平衡对两种中重型火鸡杂交种的垫料质量、足垫皮炎、生长性能和加工产量的影响。
DOI：
10.1080/00071668.2017.1349296
复制
发表时间：
2017
影响因子：
2
通讯作者：
Veldkamp T
中科院分区：
文献类型：
--
作者：
Veldkamp T
1.本试验研究了日粮粗蛋白质（CP）水平和电解质平衡（DEB）对2个商品杂交种公火鸡生长性能、加工产量、窝仔质量和脚垫皮炎（FPD）的影响。以低钾植物蛋白源替代豆粕，降低DEB，以改善凋落物质量和后续足垫质量. CP对凋落物脆碎度和湿度的影响在整个生产过程中并不一致。饲喂低蛋白日粮的火鸡的FPD显著低于饲喂高蛋白日粮的火鸡，直到84 d。生长性能受到不利影响，在低CP。加工产量不受CP.3的影响。饲喂低DEB日粮的火鸡窝仔比饲喂高DEB日粮的火鸡窝仔干燥，饲喂低DEB日粮的火鸡FPD显著低于饲喂高DEB日粮的火鸡。在28日龄时，杂交火鸡A的FPD高于杂交火鸡B。此后，没有观察到火鸡杂交种之间的FPD差异。火鸡杂交种对生长性能和加工产量没有影响.总体而言，CP × DEB对料肉比具有显著的交互作用：在高DEB处理组中，高CP组的料肉比低于低CP组（LCP），而低DEB处理组的料肉比不受CP处理的影响.由此可见，日粮中蛋白质和消化能水平较低时，可改善火鸡的窝质量，降低火鸡的胎蛋密度。
1. An experiment was conducted to investigate the effect of crude protein (CP) concentration and dietary electrolyte balance (DEB) on growth performance, processing yields, litter quality and foot pad dermatitis (FPD) in male turkeys from two commercial hybrids. Soya bean meal was replaced by vegetable protein sources selected for lower K concentrations to lower DEB in order to improve litter quality and subsequent quality of foot pads.2. Effects of CP on litter friability and wetness were not consistent during the production period. FPD in turkeys fed on diets with low CP was significantly lower than FPD in turkeys fed on diets with high CP until 84 d. Growth performance was adversely affected at low CP. Processing yields were not affected by CP.3. Litter was significantly dryer in pens of turkeys fed on diets with low DEB than in pens of turkeys fed on diets with high DEB. FPD in turkeys fed on diets with low DEB was significantly lower than in turkeys fed on diets with high DEB. Growth performance and processing yields were adversely affected at low DEB.4. FPD in turkey hybrid A was higher than in turkey hybrid B at 28 d of age. Thereafter, no differences in FPD between turkey hybrids were observed. Growth performance and processing yields were not affected by turkey hybrid.5. Overall, a significant interaction effect of CP × DEB was observed for FCR: in turkeys fed on the high DEB treatment, FCR of turkeys fed on the high CP diets was lower than FCR of turkeys fed on the low CP (LCP) diets whereas on the low DEB treatment, FCR was not affected by CP treatment.6. It was concluded that litter quality can be improved and FPD may be decreased in turkeys fed on diets containing lower CP and DEB levels.