Reproductive traits in primiparous sows in relation to feeding level.
نویسندگان
چکیده
منابع مشابه
Effects of postweaning dietary energy source on reproductive traits in primiparous sows.
An experiment was conducted to study the effects of major dietary energy source fed from weaning to ovulation or from ovulation to d 35 of pregnancy on reproductive traits in primiparous sows. Dietary energy sources were used to manipulate the plasma insulin concentration. One hundred thirteen sows were used in a split-plot design. From weaning to ovulation sows were fed at two times maintenanc...
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We investigated effects of different metabolic states on reproductive performance in lactating, primiparous sows. Sows were fed ad libitum (AL; n = 12), alimentated via a gastric cannula to 125% of AL feed intake (SA; n = 8), or restricted (R; n = 9) to 50% of AL from d 1 to 28 of lactation. At weaning, all sows were fed 2.5x maintenance energy requirements until standing heat and then fed twic...
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Feeding lactating primiparous sows to establish three divergent metabolic states: III. Milk production and pig growth.
First-litter sows fitted with stomach cannulas were used to test the hypothesis that making gilts anabolic during lactation by providing them with extra nutrition would increase milk production and pig growth. Gilts were allocated to one of three dietary treatments after farrowing: 1) restricted, sows were fed 50% of their estimated ad libitum intake; 2) ad libitum, sows were encouraged to eat ...
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ژورنال
عنوان ژورنال: Netherlands Journal of Agricultural Science
سال: 1981
ISSN: 0028-2928
DOI: 10.18174/njas.v29i4.16999