添加或不添加香茅副产物酶合剂对生长兔生长性能的营养影响。

A. Refaie, W. Salama, F. Ahmed
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引用次数: 0

摘要

摘要本试验研究了不同水平香茅副产物(CBP)替代三叶草干草饲粮对APRI生长兔生长性能、胴体性状、营养物质消化系数、部分血液参数及经济性评价。共80只APRI生长兔,6周龄,体重703 g±6.43。试验兔随机分为5组,每组16只,设4个重复,每个重复4只。第一组饲喂基础饲粮,并作为对照组;第二组和第三组分别饲喂含(20% CBP)和(40% CBP)香茅副产物替代苜蓿干草的饲粮,分别占全饲粮的5.86%和11.72%。第4组和第5组饲喂相同水平的CBP,但添加酶混合物(纳图酶强化;E)饲粮水平为0.35 g/kg,分别标记为(20% CBP+E)和(40% CBP+E)。纤维素、木聚糖酶、植酸酶、β-甘露聚糖酶、α-淀粉酶和蛋白酶含量分别为6000 U、11000 U、1500 U、700 U、700 U / g。结果表明,40% CBP+E组的末重最高,比对照组提高了5.8%,饲料效率也较对照组最佳,这与CP、NFE和CF%的营养物质消化系数提高有关,胴体率和屠宰率也有所提高。另外,40% CBP+E组生产1 kg兔肉的价格最低,经济效益最佳。由此可见,在饲粮中添加高达11.72%的香茅副产物和酶制剂可经济地提高家兔的生长性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
NUTRITONAL IMPACT OF USING CITRONELLA (CYMBOPOGON NARDUS) BY-PRODUCT WITH OR WITHOUT ENZYMES MIXTURE SUPPLEMENTATION ON GROWTH PERFORMANCE OF GROWING RABBITS.
ABSTRACT: Growth performance, carcass traits, nutrient digestibility coefficients, some blood parameters and economical evaluation of APRI growing rabbits to diets containing graded levels of citronella by-product (CBP) as a replacement of clover hay was studied in the current study. A total number of 80 APRI growing rabbits, 6 weeks of age weighing 703 g±6.43. Rabbits were randomly distributed into 5 groups, each had 16 rabbits in 4 replicates 4 rabbits, each. The first group was fed the basal diet and served as a control group, the second and third groups were fed diet contained (20% CBP) and (40% CBP) citronella by-product in replacement of clover hay and represent 5.86% and 11.72% of the whole diets, respectively. The fourth and fifth groups were fed the same previous levels of CBP, but supplemented with enzymes mixture (Natuzyme fortified; E) at level of 0.35 g/kg diet and labeled (20% CBP+E) and (40% CBP+E), respectively. Enzymes mixture contains 6000 U cellulose, 11000 U  xylanase, 1500 U phytase, 700 U β-mannase, 700 U α-amylase and 700 U protease/ g. The results reveal that the group of 40% CBP+E achieved significantly the highest final weight with 5.8% improvement over the control and the best FCR than those of the control group, which was a associated with an increase in nutrients’ digestibility coefficients’ of CP, NFE and CF%, as well as enhancing carcass% and dressing %. In addition, 40% CBP+E group, recorded the cheapest price for producing 1 kg of rabbit meat and the best economic efficiency. It could be concluded that inclusion of citronella (Cymbopogonnardus) by-product up to 11.72% plus enzymes mixture of the whole diet is effective in improving rabbit’s growth performance in economic way.
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