酵母鍺對(duì)仔豬生長性能及養(yǎng)分代謝的影響
發(fā)布時(shí)間:2018-08-20 15:37
【摘要】:試驗(yàn)旨在研究不同酵母鍺添加量對(duì)仔豬生長性能及養(yǎng)分代謝的影響。試驗(yàn)選用100頭斷奶日齡22 d、健康無病的杜×長×大三元雜交豬。將體重?zé)o顯著性差異的100頭仔豬RCB分為5組(對(duì)照組和試驗(yàn)Ⅰ、Ⅱ、Ⅲ、Ⅳ組),每組20頭仔豬,公、母各半,試驗(yàn)組日糧中的酵母鍺有效含量分別為15、25、35、45 mg/kg,正式試驗(yàn)周期為42 d,分為三個(gè)階段進(jìn)行。觀察記錄仔豬生長情況及腹瀉率,并分別在試驗(yàn)開始的第1、15、29、43 d對(duì)仔豬進(jìn)行稱重,在每個(gè)階段結(jié)束前一天,采用全收糞法采樣,分析酵母鍺對(duì)仔豬的營養(yǎng)成分代謝的影響。結(jié)果表明:(1)在生長性能方面,日糧中酵母鍺添加濃度達(dá)到35 mg/kg時(shí),仔豬的平均日增重、平均日采食量、料重比在各個(gè)試驗(yàn)階段,以及前兩個(gè)階段的仔豬腹瀉率,均與對(duì)照組差異顯著或極顯著(P0.05,P0.01),有效提高了仔豬的生長性能;(2)在養(yǎng)分代謝方面,日糧中酵母鍺添加濃度達(dá)到35 mg/kg時(shí),仔豬對(duì)日糧中干物質(zhì)、粗蛋白、粗脂肪、粗灰分以及Ca的表觀消化率均明顯提高(P0.05),有效提高了仔豬對(duì)飼料的利用率。
[Abstract]:The purpose of the experiment was to study the effects of different yeast germanium supplementation on growth performance and nutrient metabolism of piglets. A total of 100 healthy and disease-free DU 脳 Chang 脳 Da 3 hybrid pigs were selected for 22 days weaning. One hundred piglets with no significant difference in body weight were divided into 5 groups (control group and trial group 鈪,
本文編號(hào):2194145
[Abstract]:The purpose of the experiment was to study the effects of different yeast germanium supplementation on growth performance and nutrient metabolism of piglets. A total of 100 healthy and disease-free DU 脳 Chang 脳 Da 3 hybrid pigs were selected for 22 days weaning. One hundred piglets with no significant difference in body weight were divided into 5 groups (control group and trial group 鈪,
本文編號(hào):2194145
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