Effects of formic acid and corn flour supplementation of banana pseudostem silages on nutritional quality of silage,growth,digestion,rumen fermentation and cellulolytic bacterial community of Nubian black goats  

作　　者：Zhang Hao Cheng Xuan Mabrouk ELSABAGH Lin Bo Wang Hong-rong 

机构地区：[1]Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition,College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,P.R.China [2]Joint International Research Laboratory of Agriculture and Agri-Product Safety,Ministry of Education/Yangzhou University,Yangzhou 225009,P.R.China [3]Department of Animal Production and Technologies,Faculty of Agricultural Sciences and Technologies,NiğdeÖmer Halisdemir University,Niğde 51240,Turkey [4]Department of Nutrition and Clinical Nutrition,Faculty of Veterinary Medicine,Kafrelsheikh University,Kafr El-Sheikh 33516,Egypt [5]College of Animal Science,Guangxi University,Nanning 530004,P.R.China

出　　处：《Journal of Integrative Agriculture》2021年第8期2214-2226,共13页农业科学学报（英文版）

基　　金：This research was supported by the China Special Fund for Agro-scientific Research in the Public Interest(Investigation on strategies of fattening and high-quality meat productive techniques for herbivores based on resources of unconventional roughage in Southern China)(201303144);the Top Talents Award Plan of Yangzhou University,China(2016,2020);the Cyanine Project of Yangzhou University(2020);the Technology Specialty Fund for Cooperation between Jilin Province and the Chinese Academy of Sciences,2016SYHZ0022);the National Key Research and Development Program of China(2016YFD0700201);the National Natural Science Foundation of China(31902180);the Natural Science Foundation of Jiangsu Province Research Project,China(BK20170488).

摘　　要：The objective of this study was to evaluate the effects of adding formic acid and corn flour supplementation to banana pseudostem silages on the nutritional quality of these silages,growth,digestion,rumen fermentation and cellulolytic bacterial community of Nubian black goats fed these silages.Banana pseudostem silage was prepared either conventionally without any additives(CON)or mixed with 0.6% formic acid(F),10% corn flour(C),or both(F+C).Four experimental diets containing 40% of the corresponding silages were designed with roughage to concentrate ratio of 50:50(dry matter(DM)basis).A total of 48 Nubian black castrated goats(body weight(BW),(22.64±1.82)kg;4-mon-old)were randomized into one of the four treatment groups with 12 replicates of one castrated goat per replicate for each treatment in a completely randomized design.Each group was fed on one of the four experimental diets for 40 days.A factorial arrangement of treatments of 2(formic acid levels:0 and 0.6%)×2(corn flour:0 and 10%)was adopted.Formic acid supplementation increased(P<0.05)average daily gain,as well as lactic acid,propionate and butyric acid and water-soluble carbohydrate concentrations,but decreased(P<0.05)the feed conversion rate,pH value,acetate/propionate ratio,and butyric acid concentration relative to the CON group.Corn flour supplementation increased(P<0.05)the apparent digestibility of crude protein,neutral detergent fiber,and non-fibrous carbohydrate and Fibrobacter succinogenes,Ruminococcus albus,and Butyrivibrio fibrisolvens populations,but decreased(P<0.05)the Ruminococcus flavefaciens population relative to the CON group.There were no F×C treatment interactions(P>0.05)for any of the other indices except for the apparent digestibility of non-fibrous carbohydrate(NFC)(P<0.05).The results demonstrated that adding 0.6% formic acid and 10% corn flour supplementation to banana pseudostem silages improved the nutritional quality of these silages and enhanced the growth performance of Nubian black castrated goats by improving appare

关 键 词：banana pseudostem SILAGE GOAT nutrient digestion rumen fermentation ruminal cellulolytic bacteria 

分 类 号：S827.5[农业科学—畜牧学]