Relationship between serumβ-lactoglobulin content during gestation and reproductive efficiency in primiparous sows
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چکیده
منابع مشابه
Effects of dietary arginine supplementation during gestation and lactation on the performance of lactating primiparous sows and nursing piglets.
A 2 x 2 factorial arrangement of treatments in a randomized block design was used to determine the effects of dietary Arg supplementation during gestation and lactation on the lactation performance of 38 first-parity sows. At 30 d of gestation, pregnant gilts were allotted based on BW to 1 of 2 diets supplemented with 1% L-Arg.HCl or 1.7% L-Ala (isonitrogenous control). After farrowing, sows we...
متن کاملEffects of Fat and Vitamin C Supplementation during Late Gestation on Reproductive Performance of Sows
Insufficient supply of dietary energy to sows may contribute to high mortality rates amongst piglets. In this study the addition of fat and vitamin C to sow diets during late pregnancy resulted in reduced prenatal mortality, increased live litter size and a reduction in subsequent weaning to mating interval. The litter size at weaning was improved by 0.56 pigs at a relatively small cost. The ro...
متن کاملEffects of dietary lysine intake during lactation on blood metabolites, hormones, and reproductive performance in primiparous sows.
Effects of three dietary lysine (protein) concentrations during lactation on metabolic state, protein metabolism, reproductive hormones, and performance were investigated in 36 primiparous sows. Sows were assigned randomly to one of three diets containing .4% (low lysine, LL), 1.0% (medium lysine, ML), or 1.6% (high lysine, HL) total lysine from intact protein sources. All diets contained 2.1 M...
متن کاملEffect of restriction of energy during lactation on body condition, energy metabolism, endocrine changes and reproductive performance in primiparous sows.
Seventeen Landrace X Large White primiparous sows that farrowed in August 1982 were fed ad libitum (AL, n = 8) or their intakes were restricted (R, n = 9) during lactation. Litter sizes were equalized after farrowing and pigs were not allowed creep feed. Pigs were weaned 23.8 +/- .4 d postpartum. On d 6, 12 and 20 postpartum, all sows were fasted for 16 h and blood samples were collected prior ...
متن کاملIdeal amino acid balance for sows during gestation and lactation.
Improving efficiency of protein utilization is important for pregnant sows under restricted feed allowance and for lactating sows with limited feed intake. Sows have limited ability to support the growth of fetuses and mammary glands during late gestation and to support mammary growth and milk production, especially during first lactation period. A series of studies was conducted to characteriz...
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ژورنال
عنوان ژورنال: Italian Journal of Animal Science
سال: 2004
ISSN: 1828-051X
DOI: 10.4081/ijas.2004.219