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Effect of Level of Dietary Calcium-Phosphorus During Growth and Gestation on Calcium-Phosphorus Balance and Reproductive Performance of First-Litter Sows

机译:生长和孕期膳食钙磷水平对初产母猪钙磷平衡及繁殖性能的影响

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摘要

Twenty-four bred gilts were used in a Ca-P metabolism trial. Twelve gilts were fed gestation treatment A (13 g Ca, 10 g/day), while the other 12 were fed gestation treatment B (19.5 g Ca, 15 g P/day). One-half of the gilts in each treatment group were fed .65% Ca, .50% P from 7 to 94 kg, and half were fed .975% Ca, .75% P for the same period. Treatment B gilts excreted more (P\u3c.005) fecal and urinary P. Twenty-four first litter sows fed the same treatment diets during growth and gestation and given .75% Ca, .50% P during lactation were used in a Ca and P balance trial conducted from day 38 to 42 of lactation.
机译:Ca-P代谢试验中使用了二十四个后备母猪。十二只小母猪接受了妊娠处理A(13 g Ca,10 g /天),而其他十二头母猪接受了妊娠处理B(19.5 g Ca,15 g P /天)。在每个处理组中,一半的小母猪饲喂0.65%的钙,从7至94 kg饲喂0.50%的磷,在同一时期,一半饲喂.975%的钙,.75%P。 B处理后备母猪排泄的粪便和尿P较多(P \ u3c.005)。二十四头第一胎母猪在生长和妊娠期间饲喂相同的处理饮食,并给予0.75%的钙,泌乳时给予0.50%的钙。泌乳第38至42天进行了P平衡试验。

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