Optimizing the utilization of maize silage in forage blends-based rations to improve production performance and reduce methane emissions from fattening calves
作者机构：Faculty of Animal Husbandry and Veterinary SciencesThe University of AgriculturePeshawar 25130Pakistan Pakistan Scientific and Technological Information Center(PASTIC)Islamabad 44000Pakistan
出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)
年 卷 期：2024年第17卷第3期
页 面：75-81页
核心收录：
学科分类：0828[工学-农业工程] 09[农学] 0901[农学-作物学]
基 金：supported by the Department of Animal Nutrition,University of Agriculture Peshawar,Khyber Pakhtunkhwa,Pakistan financially supported by Higher Education Commission(HEC)of Pakistan through(HEC Indigenous Scholarship)grant The experiment was approved by the ethical committee(Grant No.FAH&VS 19-23)of the Faculty of Animal Husbandry and Veterinary Science,The University of Agriculture Peshawar,Khyber Pakhtunkhwa Pakistan
主 题：average daily gain farm-grown forages forage mixture fattening calves maize silage ryegrass fodder
摘 要：This research investigated the effect of various mixtures of maize silage and ryegrass fodder on nutrient digestibility,production performance,and methane(CH4)emission of fattening ***-four fattening calves((228±10)kg body weight(BW),(280±5)d of age)were allocated to 8 diets for 84 d,according to a randomized complete block design,and the blocks were balanced for BW,age,and *** diets consisted of 4 levels of maize silages,i.e.,40%(MS40),50%(MS50),60%(MS60),and 70%(MS70)in the maize silage and ryegrass fodder mixture on a dry matter(DM)basis,and each of the mixture was supplemented with either low(LC,1.0%BW)or high(HC,1.5%BW)levels of fattening *** results revealed greater(p0.05)intakes of DM(8.35 kg/d),organic matter(OM,7.85 kg/d),and metabolizable energy(ME,12.00 Mcal/d)in calves fed with MS70-LC *** highest(p0.05)digestibility(g/100 g)of DM(65.2),OM(67.3),crude protein(69.1),and neutral detergent fibre(56.3)was recorded for MS40-HC *** maximum(p0.05)average daily gain(ADG,571 g/d)was recorded for diet *** lowest value(p0.05)of CH4 emission was recorded in MS70-LC,MS70-HC,and MS60-HC as compared to other *** 70%maize silage in the ryegrass-maize silage based diet improved ADG by 174 g/d with LC *** is concluded that the optimum inclusion level of maize silage and ryegrass in the fattening ration can improve animal production performance and reduces CH4 production and concentrate requirements of fattening calves.
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