白化变色叶粕对普通山羊采食量、生长性能和消化率的影响。

IF 2.7 2区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Animals Pub Date : 2025-05-06 DOI:10.3390/ani15091342
Jobere Anastacia Mashiachidi, Tlou Grace Manyelo, Busisiwe Gunya
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引用次数: 0

摘要

季节性饲料短缺往往限制了农村地区山羊的生产力,因此需要当地可获得的替代饲料资源。本研究评价了白僵菌变色叶粕对南非非描述性山羊采食量、消化率和生长性能的影响。选用16只平均年龄12月龄、体重19.63±1.68 kg的一岁山羊,采用完全随机设计,随机分为4个饲粮处理,分别饲养于代谢笼中。试验期为42 d (14 d预试,28 d测量),试验饲粮中分别添加0%、15%、20%和30%的干物质含量。B.添加变色剂对体重和采食量无影响(p < 0.05)。但0%和30%添加水平的山羊平均日增重显著高于15%和20%添加水平的山羊(p < 0.05),有效饲料系数显著高于15%和20%添加水平的山羊(p < 0.05)。各组间日干物质采食量无显著差异(p < 0.05)。与对照组(0%添加)相比,褐螺旋藻粗蛋白质(CP)、中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)含量显著降低(p < 0.05)。不同处理的代谢体重摄入量相似(p < 0.05)。黄芪对山羊干物质消化率无显著影响(p < 0.05),但0%黄芪对粗蛋白质和ADF消化率的影响显著高于15%、20%和30%组(p < 0.05)。综上所述,添加变色白杆菌提高了非描述性山羊的生长性能和饲料转化率,但较高的添加水平降低了营养物质的消化率。添加量可达支持采食量和生长量的20%,但饲料系数在添加量为0%和30%时最高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Berchemia discolor Leaf Meal (Muni Tree) on Feed Intake, Growth Performance and Digestibility of Non-Descript Goats.

Seasonal feed shortages often limit goat productivity in rural areas, creating a need for alternative, locally available feed resources. This study evaluated the effect of Berchemia discolor leaf meal on feed intake, digestibility and growth performance of South African non-descript goats. Sixteen yearling goats (average age 12 months, body weight 19.63 ± 1.68 kg) were randomly assigned to four dietary treatments in a completely randomized design and housed individually in metabolic cages. They were fed diets containing 0%, 15%, 20% and 30% B. discolor leaf meal, formulated on a dry matter basis for 42 days (14-day adaptation, 28-day measurement). B. discolor supplementation had no effect on weight and feed intake (p > 0.05). However, goats fed diets with 0% and 30% inclusion levels had a significantly higher average daily gain and more efficient feed conversion ratio compared to those fed 15% and 20% inclusion levels (p < 0.05). Daily dry matter intake did not differ (p > 0.05) among groups. However, B. discolor had lower (p < 0.05) crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents compared to the control (0% inclusion). Metabolic weight intakes were similar (p > 0.05) across treatments. B. discolor had no effect (p > 0.05) on dry matter digestibility, but CP and ADF digestibility were higher (p < 0.05) in goats fed 0% B. discolor than those in 15%, 20% or 30% inclusion groups. In conclusion, B. discolor inclusion improved growth performance and feed conversion efficiency in non-descript goats, though higher levels reduced nutrient digestibility. Inclusion up to 20% supported intake and growth, but the highest feed conversion ratio was observed at 0% and 30% inclusion.

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来源期刊
Animals
Animals Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
4.90
自引率
16.70%
发文量
3015
审稿时长
20.52 days
期刊介绍: Animals (ISSN 2076-2615) is an international and interdisciplinary scholarly open access journal. It publishes original research articles, reviews, communications, and short notes that are relevant to any field of study that involves animals, including zoology, ethnozoology, animal science, animal ethics and animal welfare. However, preference will be given to those articles that provide an understanding of animals within a larger context (i.e., the animals'' interactions with the outside world, including humans). There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental details and/or method of study, must be provided for research articles. Articles submitted that involve subjecting animals to unnecessary pain or suffering will not be accepted, and all articles must be submitted with the necessary ethical approval (please refer to the Ethical Guidelines for more information).
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