摘要
本试验旨在研究半干氨贮麦秸替代部分花生秧对崂山奶山羊产奶性能、养分消化率、血清生化指标与抗氧化指标的影响。选用体重(51.23±2.23)kg、产奶量(1.41±0.26)kg/d、产羔100~110 d的2胎健康崂山奶山羊40只,根据来源采用配对设计,分对照组和半干氨贮麦秸组,每组设4个重复,每个重复5只羊。对照组饲喂基础饲粮,半干氨贮麦秸组饲喂试验饲粮,试验饲粮的配制是用10%半干氨贮麦秸等量替代基础饲粮中花生秧(干物质基础)。试验期共40 d,其中预试期10 d,正试期30 d。结果显示:与对照组相比,用10%半干氨贮麦秸等量替代花生秧对奶山羊的产奶量、乳成分和血清抗氧化指标均没有显著影响(P>0.05),但能够显著降低奶山羊的平均日采食量(P<0.05),极显著提高粗蛋白质(CP)、干物质(DM)、酸性洗涤纤维(ADF)和中性洗涤纤维(NDF)的消化率(P<0.01);且与对照组相比,半干氨贮麦秸组血清中总蛋白(TP)、球蛋白(GLB)含量极显著提高(P<0.01)。综上可知,用10%半干氨贮麦秸等量替代饲粮中的花生秧可提高崂山奶山羊的养分消化率,对产奶量、乳成分和抗氧化能力无不良影响。
The purpose of this experiment was to study the effects of partial substitution of peanut vine by semi-dry ammoniated wheat straw silage on lactation performance,nutrient digestibility,serum biochemical indices and antioxidant indices of Laoshan dairy goats.Forty healthy dairy goats with body weight of(51.23±2.23)kg and milk yield of(1.41±0.26)kg/d,the same parity(2 parities)and in lactation 100 to 110 d were selected and divided into 2 groups according to source by paired design,with 4 replicates per group and 5 goats per replicate.The goats in control group(CG)were fed a basal diet,and the goats in semi-dry ammoniated wheat straw silage group(SG)were fed an experimental diet.The experimental diet was formulated by replacing peanut vine with 10%semi-dry ammoniated wheat straw silage in the basal diet(dry matter basis).The experiment period was 40 days,including 10 days of pre-test and 30 days of formal test.The results showed as follows:compared with the CG,using 10%semi-dry ammoniated wheat straw silage equivalently to replace peanut vine had no significant differences in milk yield,milk composition and serum antioxidant indices(P>0.05),but could significantly decrease the average daily feed intake(P<0.05),and extremely significantly increase the digestibility of dry matter,crude protein,neutral detergent fiber and acid detergent fiber(P<0.01).And that,the contents of total protein and globulin in serum of SG were also extremely significantly increased compared with CG(P<0.01).In summary,using 10%semi-dry ammoniated wheat straw silage equivalently to replace peanut vine can improve the nutrient digestibility of Laoshan dairy goats,and has no adverse effect on the milk yield,milk composition and antioxidant performance.
作者
郭艺璇
李海滨
林英庭
李尊严
朱伟民
程明
朱风华
GUO Yixuan;LI Haibin;LIN Yingting;LI Zunyan;ZHU Weimin;CHENG Ming;ZHU Fenghua(College of Animal Science and Technology,Qingdao Agricultural University,Qingdao 266109,China;Agricultural and Rural Bureau of Chengyang District in Qingdao,Qingdao 266109,China;Qingdao Animal Husbandry and Veterinary Research Institute,Qingdao 266000,China)
出处
《动物营养学报》
CAS
CSCD
北大核心
2023年第5期3154-3163,共10页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
山东省现代农业产业技术体系羊产业创新团队(SDAIT-10-04)
青岛农业大学高层次人才科研基金资助项目(663/1120009)。
关键词
崂山奶山羊
半干氨贮麦秸
产奶性能
养分消化率
血清生化指标
抗氧化能力
Laoshan dairy goats
semi-dry ammoniated wheat straw silage
lactation performance
nutrient digestibility
serum biochemical indices
antioxidant ability
作者简介
郭艺璇(1989-),女,山东潍坊人,讲师,博士,研究方向为反刍动物营养。E-mail:yguo1108@qau.edu.cn;通信作者:朱风华,高级实验师,硕士生导师,E-mail:zhufenghua1029@126.com我国。
