摘要
【目的】研究3种培育方式对槟榔江犊牛生长发育的影响。【方法】将健康新生犊牛42头按出生顺序随机依次分成3个试验组,每个组14头犊牛,公母各半,0~5日龄均饲喂初乳,>5~90日龄试验Ⅰ组和Ⅱ组分别饲喂母乳3.5 kg/(d·头)和4.5 kg/(d·头),试验Ⅲ组饲喂代乳粉0.8 kg/(d·头)(按1∶5加水稀释)。>5日龄开始诱食犊牛料[限饲2 kg/(d·头)],15日龄开始补充玉米青贮料,采用单栏饲养方式,90日龄断奶,试验期180 d;分别在犊牛5、30、45、60、90、120、150和180日龄晨饲前测量体质量和体尺指标,并进行统计分析。【结果】犊牛料平均干物质日采食量(ADMI)在≤60日龄Ⅰ组和Ⅲ组显著高于试验Ⅱ组(P<0.05),>60~90日龄Ⅰ组显著高于Ⅱ组(P<0.05),>90~180日龄ADMI无显著差异(P>0.05);玉米青贮料ADMI整个试验期均无显著差异(P>0.05);90日龄时Ⅱ组犊牛体质量显著高于Ⅲ组(P<0.05)。除体斜长、腰角高、坐骨结节高和尻长外,3种培育方式对犊牛其他体尺指标无显著影响(P>0.05),但120日龄前Ⅲ组腹泻率略高于Ⅰ组和Ⅱ组。与Ⅰ组和Ⅱ组相比,Ⅲ组(代乳粉组)可分别降低饲养成本的36.46%和22.69%。【结论】3种培育方式不影响犊牛体质量和体尺指标,但Ⅱ组显著降低了槟榔江犊牛断奶前犊牛精补料ADMI,Ⅲ组(代乳粉组)可降低90日龄断奶体质量。3种培育方式均可用于槟榔江犊牛,其中Ⅱ组生长发育最佳,而利用代乳粉培育成本最低。
[Purpose]To study the effects of three rearing methods on the growth and development of Binglangjiang buffalo calves.[Method]Forty-two healthy newborn calves were randomly divided into 3 groups according to their birth order.Each group had 14 calves with half males and half females, colostrum was fed from the age of 0 to 5 days, and groups Ⅰ and Ⅱ were fed maternal milk 3.5 kg/(day·calf) and 4.5 kg/(day·calf) at the age of >5-90 days, respectively, and group Ⅲ was fed with 0.8 kg/(day·calf)(milk replacer diluted 1∶5 with water).From the age of >5 day, the luring feed with a dietary restriction amount of 2 kg/day was given.From the 15th day, the corn silage was supplemented, and the single-column feeding system was used.The weaning was carried out at the 90th day, and the trial period lasted 180 days.The body weight and body size indicators were measured before morning feeding at the age of 5, 30, 45, 60, 90, 120, 150 and 180 days, and statistical analysis was performed.[Result]The average dry matter intake of 6 60 days old calves was significantly higher in group Ⅰ and Ⅲ than that in group Ⅱ(P<0.05), and that of >60-90 days old calves in group Ⅰ than that in group Ⅱ(P<0.05), there was no significant difference in feed intake at the age of >90-180 days(P>0.05);no significant difference existed in the average daily feed intake of corn silage(P>0.05).The body weight of the group Ⅱ was significantly higher than that in the test group Ⅲat the age of 90 days(P<0.05).Three rearing methods almost did not affect other body size index(P>0.05) except for the body slant length, hip height, tuber ischi height and romp length, but the diarrhea rate in group Ⅲ was slightly higher than those in the other two groups.Compared with group Ⅰ and Ⅱ, the rearing with the milk replacer(group Ⅲ) could reduce the feeding cost by 36.46% and 22.69%, respectively.[Conclusion]The three rearing methods did not affect body weight and body size indicators, but significantly reduced ADMI of the concentrate supplem
作者
鲁琼芬
毛华明
李清
余选富
董书承
康定富
杜平
王金才
LU Qiongfen;MAO Huaming;LI Qing;YU Xuanfu;DONG Shucheng;KANG Dingfu;DU Ping;WANG Jincai(College of Animal Science and Technology,Yunnan Agricultural University,Yunnan Provincial Key Laboratory of Animal Nutrition and Feed,Kunming 650201,China;Tengchong Animal Husbandry Workstation,Tengchong 679100,China;Binglangjiang River Buffalo Breeding Company,Tengchong 679118,China;College of Animal Science and Technology,Yunnan Agricultural University,Kunming 650201,China)
出处
《云南农业大学学报（自然科学版）》
CSCD
北大核心
2020年第6期968-976,共9页
Journal of Yunnan Agricultural University:Natural Science
基金
国家重点研发计划重点专项(2018YFD0501600)
云南省生物重大专项(2014ZA002)。
关键词
培育方式
槟榔江水牛
犊牛
生长发育
rearing methods
Binglangjiang buffalo
calves
growth and development
