动物营养学报2018，Vol.30Issue(2)：597-605,9.DOI:10.3969/j.issn.1006-267x.2018.02.024
尿素-碳酸氢钠复合厌氧处理麦秸对崂山奶山羊泌乳性能及血清生化指标的影响
Effects of Compound Anaerobic Treated Wheat Straw with Urea and Sodium Bicarbonate on Lactation Performance and Serum Biochemical Indices of Laoshan Dairy Goats
摘要
Abstract
This experiment was conducted to investigate the effects of compound anaerobic treated wheat straw with urea and sodium bicarbonate on lactation performance and serum biochemical indices of Laoshan dairy goats.Twenty four healthy Laoshan dairy goats in lactation with body weight of (53.20±1.75) kg,milk yield of (1.41±0.22) kg/d,and 2 parities were used by single factor randomized design and equally divided into 4 groups with 6 replicates per group and 1 goat per replicate.Diets were all mixed with concentrate,whole-plant corn silage,straw with the ratio of 4∶3∶3.The straw of four groups was wheat straw,compound anaerobic wheat straw (supplemented with 2.5％ sodium bicarbonate and 4％ urea,and ensilaged for 40 d),corn stover and peanut vine,respectively.The experiment lasted for 75 d consisting of a 15-day-pretest and a 60-day-test.The results showed as follows:1) dry matter intake (DMI) in compound anaerobic wheat straw group was significantly higher than that in wheat straw (P＜0.05),corn stover and peanut vine groups,and improved by 25.67％,11.37％ and 10.33％,respectively.2) Milk yield in compound anaerobic wheat straw group was significantly higher than that in wheat straw group (P＜0.05),and was improved by 20.16％;4％ fat-corrected milk yield in compound anaerobic wheat straw group was not significantly different from that in corn stover and peanut vine groups(P＞0.05).3)Milk protein percentage in compound anaerobic wheat straw group was not significantly from that in wheat straw,corn stover and peanut vine groups (P＞0.05),and milk fat percentage in compound anaerobic wheat straw group was significantly lower than that in peanut vine group (P＜0.05);there were no significant differences of lactose percentage and milk non-fat solid percentage among groups (P＞0.05);yields of milk fat,milk protein,lactose and milk non-fat solid in compound anaerobic wheat straw group were significantly higher than those in wheat straw group (P＜0.05 or P＜0.01),but were not significantly different from corn stover and peanut vine groups (P＞0.05).4) Serum total cholesterol content in compound anaerobic wheat straw group was significantly lower than that in other groups (P＜0.05),and serum triglyceride content in compound anaerobic wheat straw group was lower than that in other groups,but the difference was not significant (P＞0.05);there were no significant differences in serum glucose,urea nitrogen,total protein,albumin and globulin contents among groups (P＞0.05).It is concluded that using compound anaerobic treated wheat straw with urea and sodium bicarbonate to feed Laoshan dairy goats can improve DMI,milk yield,milk fat percentage and milk protein percentage,increase milk composition yields,and its feeding effect is superior to wheat straw and similar to corn stover and peanut vine;there are no adverse effects on serum biochemical indices of Laoshan dairy goats;urea-sodium bicarbonate compound anaerobic treated wheat straw can be used as a roughage source for Laoshan dairy goats.关键词
复合厌氧处理/粗饲料/泌乳性能/血清生化指标Key words
compound anaerobic treatment/roughage/lactation performance/serum biochemical indices分类
农业科技引用本文复制引用
刘培剑,朱风华,葛蔚,曹玉芳,程明,林英庭..尿素-碳酸氢钠复合厌氧处理麦秸对崂山奶山羊泌乳性能及血清生化指标的影响[J].动物营养学报,2018,30(2):597-605,9.基金项目
山东省现代农业产业技术体系羊产业创新团队(SDAIT-10-04) （SDAIT-10-04）
