發(fā)布時間：2018-01-11 17:15

  本文關(guān)鍵詞：不同增鈣模式對蛋雞生產(chǎn)性能、脛骨質(zhì)量和血清生化指標(biāo)的影響　出處：《動物營養(yǎng)學(xué)報》2016年04期 　論文類型：期刊論文

  更多相關(guān)文章： 鈣 蛋雞 生產(chǎn)性能 脛骨質(zhì)量 血清生化指標(biāo)

【摘要】：本試驗(yàn)旨在研究不同增鈣模式對蛋雞生產(chǎn)性能、脛骨質(zhì)量以及血清相關(guān)生化指標(biāo)的影響,以確定蛋雞生產(chǎn)過程中飼糧鈣的增加模式以及鈣的添加量。選取18周齡海蘭灰商品蛋雞480只,隨機(jī)分為4組,每組4個重復(fù),每個重復(fù)30只。增鈣時間點(diǎn)分別為18周齡以及產(chǎn)蛋率為5%、50%和90%時,各時間點(diǎn)增鈣方式分別為:Ⅰ組2.00%、2.20%、2.40%和3.75%;Ⅱ組2.00%、2.50%、3.00%和3.75%;Ⅲ組2.00%、3.00%、3.75%和3.75%;Ⅳ組2.00%、3.75%、3.75%和3.75%。試驗(yàn)期9周。結(jié)果表明:1)Ⅲ組蛋雞產(chǎn)蛋率顯著高于Ⅰ組和Ⅳ組(P0.05),各組間平均日產(chǎn)蛋重差異不顯著(P0.05);2)Ⅲ組脛骨強(qiáng)度、脛骨重、脛骨鈣含量顯著高于Ⅰ組和Ⅱ組(P0.05),與Ⅳ組差異不顯著(P0.05);3)蛋雞產(chǎn)蛋率達(dá)50%時,Ⅰ組和Ⅱ組血鈣含量顯著高于Ⅲ組和Ⅳ組(P0.05);產(chǎn)蛋率達(dá)90%時,Ⅳ組血鈣含量顯著高于Ⅰ組和Ⅱ組(P0.05),Ⅲ組與Ⅳ組差異不顯著(P0.05)。結(jié)果提示:當(dāng)?shù)半u產(chǎn)蛋率達(dá)5%、50%和90%時,飼糧鈣水平分別為3.00%、3.75%和3.75%有助于提高蛋雞產(chǎn)蛋率,改善體況和穩(wěn)定骨骼質(zhì)量,同時不造成鈣源浪費(fèi)。
[Abstract]:The purpose of this study was to study the effects of different calcium increasing models on the performance, tibia quality and serum biochemical indexes of laying hens. In order to determine the increasing pattern of dietary calcium and the amount of calcium added during the production of laying hens 480 Hailan grey commercial laying hens aged 18 weeks were randomly divided into 4 groups with 4 repeats in each group. The calcium increasing time point was 18 weeks old and the egg laying rate was 50% and 90% respectively. The calcium increasing pattern at each time point was: group 鈪，

本文編號：1410460