青贮杂交构树替代蛋白饲料对肉羊粪污排放和表观消化率的影响
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摘要
为了研究青贮杂交构树替代蛋白饲料对肉羊粪污排放和表观消化率的影响,试验选取健康状况良好、体重相近的萨寒杂交肉羊48只,随机分成4个处理,其中A组为对照组,饲喂基础日粮,B、C、D组为试验组,分别饲喂添加不同比例的青贮杂交构树日粮,进行为期100 d的饲喂试验。结果表明:与对照组相比,3个试验组对肉羊单位增重粪污排放量以及DM、CP、NDF、ADF、EE和P消化率均无显著影响(P>0.05),但随着青贮杂交构树添加量的增加,单位增重粪污排放量有增加趋势,DM、CP、NDF和EE的消化率有降低趋势。说明青贮杂交构树可以作为肉羊日粮中的蛋白饲料,但适宜添加量有待进一步研究。
In order to study the effect of silage crossbred broussonetia papyrifera as protein feed replacer on manure discharge and apparent digestibility in mutton sheep,48 sheep crossbred by Suffolk sheep and Small-tail han sheep were selected and randomly divided into 4 groups under good health and similar weight,in thich,group A was the control which fed basal diet,and group B,C and D were the experimental groups that fed the diets added different proportion of silage hybrid broussonetia papyrifera respectively,the experimental period was 100 days. The results showed,compared with control group,in respect of unit body weight fecal discharge and apparent digestibility of DM,CP,NDF as well as EE,the difference was not significant in experimental groups(P>0.05).However,with the increasement of the proportion of silage crossbred broussonetia papyrifera in the diets,the manure discharge per unit body weight gain in creased,while the apparent digestibility of DM,CP,NDF,EE decreased. So,silage crossbred broussonetia papyrifera can be used as protein feed in mutton sheep,but it will be necessary to further research the suitable addition amount.
In order to study the effect of silage crossbred broussonetia papyrifera as protein feed replacer on manure discharge and apparent digestibility in mutton sheep,48 sheep crossbred by Suffolk sheep and Small-tail han sheep were selected and randomly divided into 4 groups under good health and similar weight,in thich,group A was the control which fed basal diet,and group B,C and D were the experimental groups that fed the diets added different proportion of silage hybrid broussonetia papyrifera respectively,the experimental period was 100 days. The results showed,compared with control group,in respect of unit body weight fecal discharge and apparent digestibility of DM,CP,NDF as well as EE,the difference was not significant in experimental groups(P>0.05).However,with the increasement of the proportion of silage crossbred broussonetia papyrifera in the diets,the manure discharge per unit body weight gain in creased,while the apparent digestibility of DM,CP,NDF,EE decreased. So,silage crossbred broussonetia papyrifera can be used as protein feed in mutton sheep,but it will be necessary to further research the suitable addition amount.
引文
[1]沈世华,彭献军.“构树扶贫”中的黑科技补齐我国畜牧业高品质饲料缺乏的短板[J].科技促进发展,2017,13(6):435-442.
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[9]郭雪峰.内蒙古白绒山羊甲烷产生量估测模型的建立及其影响因素的研究[D].呼和浩特:内蒙古农业大学,2008.
[10] Waghorn G C,Tavendale M H,Woodfield D R. Methanogenesis from forages fed to sheep[C]//Proceedings of the New Zealand Grassland Association. 2002,64:167-171.
[11]林萌萌,王国琪,仙鹏国,等.中草药饲料添加剂对肉羊生产性能和粪污排放的影响[J].中国草食动物科学,2018,38(3):30-32.
[12]屠焰,刁其玉,田莉,等.杂交构树营养成分瘤胃降解特点的研究[J].中国畜牧杂志,2009,45(11):38-41.
[13]熊罗英,蔡仁贤,刘艳芬.发酵构树叶对肉仔鸡生长及代谢性能的影响[J].饲料研究,2012(5):51-54.
[2]李毓堂.创草产业新系统解人畜争粮矛盾确保粮食安全农畜产品有效供应[J].草业科学,2013,30(11):1687-1689.
[3]侯改凤,李瑞,陈达图,等.构树叶的生物学功能及其在畜禽生产中的应用[J].中国饲料,2013(12):11-13.
[4]谭桂华,刘子琦,肖华,等.构树的饲用价值及应用[J].中国饲料,2017(20):32-35.
[5]屠焰,刁其玉,张蓉,等.杂交构树叶的饲用营养价值分析[J].草业科学,2009,26(6):136-139.
[6]彭津津,韩杰,张英杰,等.不同饲喂水平对无角陶赛特羊与小尾寒羊杂交二代公羔代谢产物及氮代谢的影响[J].中国草食动物科学,2012,32(S1):343-345.
[7]郭璇,卞欣欣,蒲雪松,等.饲喂棉籽壳对哈萨克羊饮水量、排尿量、排粪量及相关指标的影响[J].新疆农业大学学报,2009,32(3):42-44.
[8]林萌萌,张付超,赵薇,等.日粮中添加大豆油和松针粉对陕北白绒山羊粪尿及甲烷排放的影响[J].家畜生态学报,2014,35(11):27-32.
[9]郭雪峰.内蒙古白绒山羊甲烷产生量估测模型的建立及其影响因素的研究[D].呼和浩特:内蒙古农业大学,2008.
[10] Waghorn G C,Tavendale M H,Woodfield D R. Methanogenesis from forages fed to sheep[C]//Proceedings of the New Zealand Grassland Association. 2002,64:167-171.
[11]林萌萌,王国琪,仙鹏国,等.中草药饲料添加剂对肉羊生产性能和粪污排放的影响[J].中国草食动物科学,2018,38(3):30-32.
[12]屠焰,刁其玉,田莉,等.杂交构树营养成分瘤胃降解特点的研究[J].中国畜牧杂志,2009,45(11):38-41.
[13]熊罗英,蔡仁贤,刘艳芬.发酵构树叶对肉仔鸡生长及代谢性能的影响[J].饲料研究,2012(5):51-54.
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