吉林麦饭石对蛋鸡产蛋效能的作用

Effect of Jilin Maifanite Additive on the Egg Production of Laying Hens

本研究先后用三批400余只鸡进行了实验。在育成鸡实验是,选择110日龄星杂“579”母鸡105只,随机分成3组。对照组1喂基础料,对照组2喂标准蛋鸡料,实验组喂基础料均匀添加100目的吉林麦饭石(10:5)。结果表明,50％和100％的鸡的开产日龄,实验组比两个对照组均早;实验组产蛋率较对照组高7-8％(P<0.05),而3组间蛋重无显著差异;3组的蛋料比分别是1:3.11,1:2.94、1:2.47,实验组的饲料报酬高于两对照组。3组鸡饲料通过消化道时间分别是125.50,139.75、157.15 min,实验组较对照组长;蛋壳的平均厚度,实验组与对照组相差不显著(P>0.05),而蛋的抗压强度显著高于对照组(P<0.05)。实验组蛋壳海绵层排列规则致密,蛋中微量元素如铁、铜,钴、锰含量高于对照组(P<0.05);蛋中7种必需氨基酸和10种非必需氨基酸含量均高于对照组。实验组鸡血中淀粉酶,谷丙转氨酶、脂肪酶含量均高于对照组,且都在生理范围内。

One hundred an.d five 110-days-old Starcross '579' hens were randomly divided into three groups: the experimental,control 1 and control 2 . The results obtained were as follows. The hen laying days of 50% and 100% in the experimental group were earlier than two control groups. As compared with the control groups, the laying rate of experimental group increased by 7-8 %(P<0.05),but yet the egg weight was not different. The feed conversion efficiencies of control 1, control 2 and experimental groups were 1:3.11, 1:2.94, 1:2.47; the passing digestive tract times were 125.5, 139.75, 157.15 min, respectively. The resistance of the egg shell of experimental group was significantly greater than that of control groups(P<0.05) . Under scanning electron microscooe, there was dense palisade layer in the experimental group. The contents of mineral elements(Fe, Cu, Co, Mn), amino acids and enzymes (amylase, GPT,lipase) in eggs of experimental group were greater than both control groups.