饮食的影响铜源(柠檬酸铜、硫酸铜)和浓度对生长性能和粪便铜排泄在刚断奶的猪。

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阿姆斯特朗助教,库克博士,病房MM,威廉姆斯厘米,长矛JW

饮食的影响铜源(柠檬酸铜、硫酸铜)和浓度对生长性能和粪便铜排泄在刚断奶的猪。

J动物科学。2004年4月,82 (4):1234 - 40。doi: 10.2527/2004.8241234 x。

PubMed ID

15080347 (在PubMed

]

文摘

在两个实验,924头猪(4.99公斤;年龄16到18 d)被分配到1 42笔基于BW和性别。笔被随机分配给铜(铜)治疗,包括饮食控制(10 ppm铜硫酸铜,CuSO4 x 5 h2o)和补充膳食铜浓度的15日,31岁的62年,或者125 ppm柠檬酸铜(CuCit),或62 (Exp。2只),125 (Exp。1只),或作为CuSO4 250 ppm。活体动物表演是决定最终45-d在每个实验幼儿园阶段。40 d Exp。2、血液和粪便样本收集从两个随机选择的猪每笔评价血浆和粪便铜浓度和粪便的气味特征。Exp。1 ADG ADFI, F和G:增加(P < 0.05),相对于控件,当猪喂饮食包含250 ppm CuSO4铜。猪喂饮食包含125 ppm铜CuCit已经增加(P < 0.05) ADG与食物喂养的猪补充了15到62 ppm CuCit铜。ADG ADFI, F和G:没有食物喂养的猪之间的差异包含125和250 ppm铜CuCit CuSO4或125 ppm铜。Exp。2、猪喂饮食包含250 ppm铜CuSO4有所改善(P < 0.05) ADG ADFI, G: F与控制。此外,ADG ADFI, F和G:类似当猪喂饮食包含250 ppm铜CuCit CuSO4或125 ppm铜。 Pigs fed diets containing 62 ppm Cu as CuSO4 or CuCit had similar ADG, ADFI, and G:F. Plasma Cu concentrations were not affected by dietary Cu source or concentration, but fecal Cu concentrations were increased (P < 0.05) as the dietary concentration of Cu increased. Pigs consuming diets supplemented with 125 ppm Cu as CuCit had fecal Cu concentrations that were lower (P < 0.05) than pigs consuming diets supplemented with 250 ppm Cu as CuSO4. Fecal Cu did not differ in pigs receiving diets supplemented with 62 ppm Cu as CuSO4 or CuCit. Odor characteristics of feces were not affected by Cu supplementation or source. These data indicate that 125 and 250 ppm Cu gave similar responses in growth, and that CuCit and CuSO4 were equally effective at stimulating growth and improving G:F in weanling pigs. Fecal Cu excretion was decreased when 125 ppm Cu as CuCit was fed compared with 250 ppm Cu as CuSO4. Therefore, 125 ppm of dietary Cu, regardless of source, may provide an effective environmental alternative to 250 ppm Cu as CuSO4 in weanling pigs.

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药物

硫酸铜