玉米芯和菜籽粕混合物替代苜蓿草粉饲喂肉兔的效果

发布时间：2018-06-01 01:06

本文选题：肉兔 + 玉米芯　；参考：《西北农林科技大学学报(自然科学版)》2017年03期

【摘要】：【目的】比较不同水平玉米芯和菜籽粕混合物替代苜蓿草粉饲喂生长肉兔的效果,以筛选其适宜用量。【方法】选择120只遗传来源相同、健康的35日龄法国伊拉商品兔,适应7d后,按体质量((1 328.36±51.66)g)相近原则随机分为A、B、C、D 4组,分别饲喂能量、蛋白和纤维基本相等的4种饲粮28d,其中A组(即对照组)饲喂豆粕-苜蓿型基础饲粮,B、C和D组分别饲喂用玉米芯和菜籽粕混合物(按质量比1∶1混合)替代基础饲粮中1/3、2/3和3/3苜蓿草粉的试验饲粮(相应饲粮中该混合物含量分别为80,160和240g/kg)。测定该混合物对肉兔生长性能、健康状况、养分全肠表观消化率和屠宰性能指标的影响。【结果】试验期末,D组肉兔平均日增体质量和平均日采食量显著低于其他组,饲料转化率、死亡率和健康风险指数显著高于其他组(P0.05);除B、C和D组干物质全肠表观消化率均显著低于A组(P0.05),B和C组粗蛋白质全肠表观消化率显著低于A组(P0.05),A组中性洗涤纤维全肠表观消化率显著高于B组而低于D组(P0.05),B、C和D组饲粮多数氨基酸全肠表观消化率显著低于A组外(P0.05),其余各组间养分全肠表观消化率无显著差异(P0.05);B组除全净膛率和半净膛率显著低于A和C组(P0.05)外,其余屠宰性能指标与A和C组无显著差异(P0.05),而D组各屠宰性能指标均显著低于其余3组(P0.05)。【结论】饲粮中添加一定水平的玉米芯和菜籽粕混合物不会对肉兔生长性能和健康状况造成明显的负面影响,建议其添加量不超过16%。
[Abstract]:[objective] to compare the effects of the mixture of corncob and rapeseed meal at different levels on feeding growing meat rabbits instead of alfalfa meal. [methods] 120 healthy 35 day old French Eira commercial rabbits of the same genetic origin were selected. After 7 days of adaptation, according to the principle of 1 328.36 卤51.66 g of body mass, the rats were randomly divided into four groups: group A, B, C, D, and fed with energy, respectively. Four diets with almost equal protein and fiber were fed for 28 days. Group A (control group) was fed with soybean meal and alfalfa basal diet, group C and group D were fed with corn cob and rapeseed meal mixture (1:1 by mass ratio) respectively. Experimental diets with 1 / 3 / 3 / 3 and 3 / 3 of alfalfa meal (the contents of the mixture were 80160 and 240 g / kg 路kg ~ (-1) respectively). The effects of the mixture on the growth performance, health status, apparent nutrient digestibility and slaughtering performance of meat rabbits were measured. [results] the average daily gain and average daily intake of group D were significantly lower than those of other groups at the end of the experiment. Feed conversion rate, Mortality and health risk index were significantly higher than those of other groups (P 0.05), and the total apparent digestibility of dry matter in groups B and D were significantly lower than those in group A (P 0.05) and group C (P 0.05). The total apparent digestibility of crude protein in group A was significantly lower than that in group A (P 0.05). The apparent digestibility of intestine was significantly higher than that of group B but lower than that of group D and group D respectively. The apparent digestibility of most amino acids in diet of group D was significantly lower than that of group A (P0.05). There was no significant difference in total apparent digestibility of nutrient among other groups. The half bore rate was significantly lower than that of group A and C (P0.05). There was no significant difference between the other slaughter performance indexes and group A and C, but the slaughter performance indexes in group D were significantly lower than those in the other three groups. [conclusion] adding a certain level of mixture of corn cob and rapeseed meal to diet does not affect the growth of meat rabbits. Performance and health status have significant negative effects, It is recommended that the amount added should not exceed 16.
【作者单位】：四川农业大学动物营养研究所动物抗病营养教育部重点实验室;日本国立畜产草地研究所;
【基金】：教育部“春晖计划”项目四川省科技支撑项目(2012NZ0005、2016NZ0002) 四川农业大学“双支计划”项目
【分类号】：S829.1

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