在多种补充条件下,以柞蚕草代替玉米对放牧羊生产性能的影响

IF 1.5 3区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY New Zealand Journal of Agricultural Research Pub Date : 2023-11-08 DOI:10.1080/00288233.2023.2259344
Juliana Rodrigues Lacerda Lima, Rosane Cláudia Rodrigues, Giovanne Oliveira Costa Sousa, Ana Paula Ribeiro de Jesus, Ana Claudia da Costa, Alessandra Schaphauser Rosseto Fonseca, Luciano da Silva Cabral, Clésio dos Santos Costa, Juliana Silva de Oliveira, Eduarda Castro da Silva
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摘要

摘要本研究旨在评价放牧绵羊饲粮中添加白头球豆荚对其采食量、消化率和生产性能的影响。24只羊(21.26±2.87 kg)采用完全随机设计,每组6只。评价处理为无机盐(MS)、无机盐+尿素/硫酸铵(尿素补充;UR)、以玉米+豆粕为基础的复合添加物(MSCS)和以天牛豆荚代替50%玉米的复合添加物(MSPP)。饲粮中添加多种微量元素对采食量没有影响,且饲粮中添加多种微量元素的羊的总干物质(DM)采食量高于饲粮中添加多种微量元素的羊,其粗蛋白质(CP)采食量比饲粮中添加多种微量元素的羊高55.57%。饲喂MS的绵羊中性洗涤纤维摄入量比饲喂其他补充剂的绵羊低17.76%。饲喂多种添加剂的动物对粗脂肪和粗蛋白质的消化率高于饲喂MS或US的动物。与MS和US相比,饲喂多种添加剂的动物总增重提高54.61%,平均日增重提高54.79%。因此,在不影响放牧羊生产性能的情况下,在多种补充物中,白头雁豆荚可以替代50%的玉米。关键词:生物特征识别;高光截获;帕金森病;白头;
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Performance of grazing sheep kept on tamani grass supplemented with Parkia platycephala pods replacing corn in the multiple supplements
ABSTRACTThis study aimed to evaluate the effect of Parkia platycephala pods in the supplements for grazing sheep on intake, digestibility, and animal performance. Twenty-four sheep (21.26 ± 2.87 kg) were used by a completely randomised design with six animals per treatment. The evaluated treatments were mineral salt (MS), mineral salt + urea/ammonium sulfate (urea-supplement; UR), multiple supplements based on corn + soybean meal (MSCS), and multiple supplements in which P. platycephala pods replaced 50% of corn (MSPP). The supplements evaluated did not affect pasture intake, and total dry matter (DM) intake was higher for animals fed multiple or UR than those fed with MS. Sheep fed multiple supplements presented 55.57% higher crude protein (CP) intake than those fed MS or UR. Neutral detergent fibre intake was 17.76% lower in sheep fed MS than those fed other supplements. Animals fed multiple supplements presented higher digestibility for DM and CP than those fed MS or US. Animals fed multiple supplements presented 54.61% higher total body weight gain and 54.79% higher average daily gain than those fed MS or US. Thus, Parkia platycephala pods can replace 50% of corn in multiple supplements without compromising the performance of grazing sheep.KEYWORDS: Biometricsentrance heightlight interceptionParkia platycephalastocking rate Disclosure statementNo potential conflict of interest was reported by the author(s).
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来源期刊
CiteScore
4.90
自引率
16.70%
发文量
31
审稿时长
3 months
期刊介绍: The New Zealand Journal of Agricultural Research publishes original research papers, review papers, short communications, book reviews, letters, and forum articles. We welcome submissions on all aspects of animal and pastoral science relevant to temperate and subtropical regions. The journal''s subject matter includes soil science, fertilisers, insect pests, plant pathology, weeds, forage crops, management systems, agricultural economics, agronomy, and animal science. The journal also accepts crossover papers on subjects such as land –water interactions.
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