Abd El-Hack Mohamed Ezzat, Alagawany Mahmoud, Abdelnour Sameh
Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt.
Animal Production Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt.
J Anim Physiol Anim Nutr (Berl). 2019 Mar;103(2):509-517. doi: 10.1111/jpn.13045. Epub 2018 Dec 28.
The current study was explored to examine the impacts of dietary inclusion of mixture of black (BPO) and red pepper (RPO) oils as growth promoters on growth, carcass, blood haematology, serum chemistry, immunity and antioxidative status of New Zealand White rabbits (NZW). A number total of 100 5-week-old NZW growing weaned rabbits were randomly allocated into four treatment groups in a complete randomized experiment. The dietary treatment groups were as follows: control: basal diet; BRP0.5: basal diet + 0.25 g BPO + 0.25 g RPO/kg diet; BRP1.0: basal diet + 0.50 g BPO + 0.50 g RPO/kg diet; and BRP1.5: basal diet + 0.75 g BPO + 0.75 g RPO/kg diet. Rabbits fed the highest level of BRP mixture were the heaviest, while the control rabbits were the lightest. During 5-9 weeks of age, a gradual improvement in feed conversion ratio (FCR) was noticed with increasing BRP level. The control group excelled all BRP groups regarding the majority of blood haematological parameters. Liver function was better in rabbits fed BRP enriched diets than the control. A gradual depression (p < 0.05 or 0.01) in serum lipids regardless high-density lipoprotein (HDL) were recorded with elevating BRP level in the diet. The supplementation of BRP mixture enhanced the immune function and serum superoxide dismutase (SOD) activities and depressed serum malondialdehyde (MDA) in comparison with control. It could be concluded that dietary BRP mixture can affect some of growth traits, improve the immunity and antioxidant parameters, lower lipid profile and lipid peroxidation. Based on the study results, the recommended level of BRP mixture is 1.5 g/kg diet.
本研究旨在探讨日粮中添加黑胡椒油（BPO）和红辣椒油（RPO）混合物作为生长促进剂对新西兰白兔（NZW）生长性能、胴体品质、血液学指标、血清生化指标、免疫功能和抗氧化状态的影响。在一项完全随机试验中，将总共100只5周龄的NZW生长断奶兔随机分为四个处理组。日粮处理组如下：对照组：基础日粮；BRP0.5组：基础日粮 + 0.25 g BPO + 0.25 g RPO/千克日粮；BRP1.0组：基础日粮 + 0.50 g BPO + 0.50 g RPO/千克日粮；BRP1.5组：基础日粮 + 0.75 g BPO + 0.75 g RPO/千克日粮。饲喂最高水平BRP混合物的兔子体重最重，而对照组兔子体重最轻。在5至9周龄期间，随着BRP水平的提高，饲料转化率（FCR）逐渐改善。在大多数血液学参数方面，对照组优于所有BRP组。饲喂富含BRP日粮的兔子肝功能优于对照组。随着日粮中BRP水平的升高，血清脂质（高密度脂蛋白（HDL）除外）逐渐降低（p < 0.05或0.01）。与对照组相比，添加BRP混合物增强了免疫功能和血清超氧化物歧化酶（SOD）活性，并降低了血清丙二醛（MDA）水平。可以得出结论，日粮中的BRP混合物可以影响一些生长性状，改善免疫和抗氧化参数，降低血脂和脂质过氧化水平。根据研究结果，BRP混合物的推荐添加水平为1.5 g/千克日粮。
