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本试验旨在利用氨基酸部分扣除法研究开食料中赖氨酸、蛋氨酸、苏氨酸和色氨酸对断奶后羔羊生长性能、氮利用率和血清学指标的影响,以期确立氨基酸限制性顺序和比例。选取100只50日龄、平均体重为11.00 kg的健康湖羊断奶公羔羊,随机分成5组,每组4个重复,每个重复5只羊。采用单因素试验设计,对照组(PC)饲喂氨基酸平衡的开食料,其赖氨酸、蛋氨酸、苏氨酸和色氨酸含量分别为1.16%、0.38%、0.58...
四川省农业科学院蚕业研究所牧业研究中心
四川省农科院蚕业所 牧业研究中心 饲草 新品种培育
2024/3/18
乳酸菌与纤维素酶对草甸草原天然牧草青贮品质的影响
天然牧草,青贮,乳酸菌,纤维素酶
2017/5/25
旨在探讨不同添加剂对天然牧草青贮的影响,提高天然牧草青贮的利用效率,指导天然牧草的生产与利用。本研究以草甸草原盛花期的天然牧草为材料,设置6个处理组,分别为SLAB(真空袋,乳酸菌(2×105 cfu·g-1))、SCE(真空袋,纤维素酶(0.8 g·kg-1))、SCK(真空袋,无添加,对照)、BLAB(青贮窖,乳酸菌(2×105 cfu·g-1))、BCE(青贮窖,纤维素酶(0.8 g·kg-...
Use of Lysozyme as a Feed Additive on In vitro Rumen Fermentation and Methane Emission
In vitro Lysozyme Methane Ruminant Volatile Fatty Acid
2016/11/10
This study was conducted to determine the effect of lysozyme addition on in vitro rumen fermentation and to identify the lysozyme inclusion rate for abating methane (CH4) production. An in vitro rumin...
饲料及畜禽产品中霉菌毒素快速检测技术研究进展
霉菌毒素 快速检测技术 抗体
2016/10/31
霉菌毒素是某些霉菌的次级代谢产物,在自然界中分布极为广泛,可污染动物饲料及畜禽产品,对动物和人类健康造成巨大危害。作者介绍了饲料与畜禽产品中常见的霉菌毒素及其对动物和人类的危害,总结了近年来快速检测技术在霉菌毒素检测方面所取得的进展,分析了霉菌毒素抗体制备的主要影响因素,并对霉菌毒素快速检测技术发展前景作出展望。
Effects of Physically Effective Neutral Detergent Fiber Content on Intake, Digestibility, and Chewing Activity in Fattening Heifer Fed Total Mixed Ration
Physically Effective Neutral Detergent Fiber Chewing Activity Digestibility Dry Matter Intake
2016/12/28
The objective of this study was to determine the effects of physically effective neutral detergent fiber (peNDF) content in total mixed ration (TMR) on dry matter intake, digestibility, and chewing ac...
妊娠后期饲粮营养水平对母羊和胚胎发育的影响
精粗比 妊娠后期 湖羊 胚胎
2017/4/1
本试验旨在研究妊娠后期饲粮营养水平对母羊及胚胎发育的影响。试验选用健康、怀双羔的初产湖羊,妊娠0~90 d采用相同的TMR,自由采食。妊娠90 d时母羊(平均体重(44.45±2.2)kg)分3个处理组饲喂,每组11个重复,每个重复2只,共计66只。试验采用相同的精料补充料和粗料,分别按照以干物质为基础,精∶粗为5∶5、4∶6、3∶7定量饲喂母羊至妊娠140 d,每组选取3只进行屠宰试验。结果表明...
Influence of the addition of exogenous xylanase with or without pre-incubation on the in vitro ruminal fermentation of three fibrous feeds
roughage gas production fibre degradation
2016/7/6
The effects of the exogenous fibrolytic enzyme (ENZ) commercial preparation Dyadic?xylanase PLUS (Dyadic International, Inc., Jupiter, USA), containing endo-1,4-?d-xylanase, on ruminal fermentation of...
冷季补饲对藏羊小肠形态发育及营养物质转运载体基因表达量的影响
小肠形态发育 营养物质转运载体
2017/4/1
本试验旨在研究冷季补饲精料或尿素-糖蜜型舔砖对藏羊小肠组织形态发育及营养物质转运载体基因表达量的影响。选择1.5岁、体重((29.4±1.79) kg)相近的健康藏系绵羊母羊18头,随机分为对照组(CON组)、尿素-糖蜜型舔砖补饲组(BS组)和精料补饲组(CS组)。CON组自由采食燕麦干草,BS组在CON组基础上自由舔食尿素-糖蜜型舔砖,CS组在CON组基础上补饲精料200 g•只-1...
本试验旨在研究不同浓度的胰高血糖素样肽-2(Glucagon-like peptide 2,GLP-2)和二肽基肽酶Ⅳ(Dipeptidyl peptidase-Ⅳ,DPP-Ⅳ)抑制剂联合使用对体外原代培养的28日龄断奶仔猪肠上皮细胞增殖、代谢及相关酶活力的影响,初步探讨提高GLP-2作用效果的方法。试验首先采用单因子试验设计探讨不同浓度DPP-Ⅳ抑制剂(KR62436)对断奶仔猪肠黏膜上皮细胞增...
青绿甜高粱秸秆替代部分全价饲粮对鹅生长性能、屠宰性能及肉品质的影响
生长性能 屠宰性能 肉品质
2017/4/1
通过研究青绿甜高粱秸秆替代不同比例的基础饲粮对四川白鹅生长性能、屠宰性能及肉品质的影响,探索建立利用青绿甜高粱秸秆替代鹅部分全价基础饲粮的饲喂技术。选取360只28日龄的四川白鹅(公母各半,(1.11±0.008) kg),随机分为对照组、试验I组、试验II组、试验III组、试验IV组、试验V组 6个处理组,每个组6个重复,每个重复10只鹅。对照组自由采食全价基础饲粮,不补饲青绿甜高粱秸秆;试验I...
Effects of Combining Feed Grade Urea and a Slow-release Urea Product on Performance, Dietary Energetics and Carcass Characteristics of Feedlot Lambs Fed Finishing Diets with Different Starch to Acid Detergent Fiber Ratios
Slow-release Urea Finishing Lambs Growth Performance Dietary Energetics Carcass
2016/12/28
Recent findings have shown that microbial nitrogen flow and digestible energy of diets are increased when urea is combined with a slow-release urea (SRU) in diets with a starch to acid detergent fibre...
Effects of Three Feeding Systems on Production Performance, Rumen Fermentation and Rumen Digesta Particle Structure of Beef Cattle
Production Performance Rumen Fermentation Rumen Digesta Particle
2016/5/20
The effects of three different feeding systems on beef cattle production performance, rumen fermentation, and rumen digesta particle structure were investigated by using 18 Limousin (steers) with a si...
Effect of Feeding Date Pits on Milk Production, Composition and Blood Parameters of Lactating Ardi Goats
Goats Date Pits Dietary Treatments Milk Production Albumin Triglyceride
2016/5/20
Twenty Ardi lactating goats were used to investigate the effect of substituting 10%, 15%, and 20% of concentrate feed with date pits on milk production, composition, and blood parameters. Four isocalo...
Effect of Dietary Beta-Glucan on the Performance of Broilers and the Quality of Broiler Breast Meat
β-Glucan Broiler Growth Performance Physicochemical Properties
2016/5/19
A total of 400, one day-old commercial broiler chicks were divided into five diet groups (negative control, positive control group with 55 ppm Zn-bacitracin, 15 ppm β-glucan, 30 ppm β-glucan, and 60 p...