Behaviour and physiology of lactating sows – associations with piglet performance and sow postweaning reproductive success
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چکیده
...................................................................................................................... List of original articles................................................................................................
منابع مشابه
Photoperiod and heat stress influence on lactating sow performance and photoperiod effects on nursery pig performance.
Three experiments were conducted to evaluate sow and piglet productivity under extended photoperiod. In Exp. 1, 98 crossbred, lactating sows were housed in one of four treatments: thermoneutral air temperature (23.6 degrees C) in either (h of light:dark) 1:23 or 16:8 photoperiods, or heat stress (30.4 degrees C) in either 1:23 or 16:8 photoperiods. Heat stress reduced (P less than .05) sow feed...
متن کاملA review of sow and piglet behaviour and performance in group housing systems for lactating sows.
Commercial use of group housing systems for lactating sows is limited, but the recent transition to group housing during gestation in the EU may result in a renewed interest in such systems. Therefore, this review aims to identify key factors that may contribute to the success or failure of group housing of lactating sows in comparison with individual housing by describing the variety in group ...
متن کاملEffects Of γ-Aminobutyric Acid on Performance, Antioxidative Status and Biochemical Indices of Lactating Sows in Hot Weather
This study was carried out to determine the effects of γ-aminobutyric acid on the reproductive performance, antioxidative status and biochemical indices of lactating sows. Forty-two lactating sows (Landrace×Large White) were blocked by body weight, parity and backfat and randomly assigned to 6 treatments: 0 (control), 100, 200, 300, 400 and 500 mg γ-aminobutyric acid /kg diet. The average tempe...
متن کاملEffects of sarcoptic mange on lactating swine and growing pigs.
The impact of Sarcoptic mange on sows and on performance of their offspring from birth to slaughter was determined. Sows naturally infested with Sarcoptic mange were paired, mated to the same boar, and assigned randomly to treated or control farrowing groups. Treated sows received ivermectin s.c. at 300 micrograms/kg body weight; control sows received the vehicle s.c. Sow performance was evalua...
متن کاملSow body composition and its associations with reproductive and litter growth performance of the primiparous sow
The complex of desirable maternal traits includes litter size, mothering ability and milk production, combined with aspects of piglet viability or survival and sow rebreeding performance. There are two major contradictory elements within this trait complex. Firstly, larger litters will be, on average, lighter at birth, and result in an extended duration of farrowing. These characteristics may a...
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