Nutrition reproduction interactions in primiparous sows

Whittemore, C. T.

doi:10.1016/0301-6226(96)00019-x

Cited by 97 publications

(69 citation statements)

References 75 publications

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“…Similarly, we observed a negative correlation between feeding level during rearing and ad libitum feed intake during lactation [ 16]. It has been suggested that the level of the body fatness at farrowing could play a major role in the variation of feed intake during lactation [6,14,28].…”

supporting

confidence: 73%

Effect of the feeding level during rearing on performance of Large White gilts. Part 2: effect on metabolite profiles during gestation and lactation, and on glucose tolerance

Cozler¹,

David²,

Beaumal³

et al. 1998

Reprod. Nutr. Dev.

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supporting

confidence: 73%

Effect of the feeding level during rearing on performance of Large White gilts. Part 2: effect on metabolite profiles during gestation and lactation, and on glucose tolerance

Cozler¹,

David²,

Beaumal³

et al. 1998

Reprod. Nutr. Dev.

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“…Thus, there is a conflict concerning nutrient allocation between the needs of a sow's current litter and the sow's own needs. Indeed, besides resources for milk production, the young sow is still growing (Whittemore, 1996). In the present findings, there was a significant effect of litter size at weaning on shoulder ulcers.…”

supporting

confidence: 53%

Heritability of shoulder ulcers and genetic correlations with mean piglet weight and sow body condition

Lundgren

Zumbach

Lundeheim

et al. 2012

Animal

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The objective of this paper was to estimate the heritability for shoulder ulcers and the genetic correlations between shoulder ulcers, mean piglet weight and sow body condition. The analyses were based on information on 5549 Norwegian Landrace sows and their 7614 purebred litters. The genetic analysis was performed using the Gibbs sampling method. Shoulder ulcers were analyzed as a threshold trait. Sow body condition and mean piglet weight were analyzed as linear traits. The heritability of shoulder ulcers was estimated at 0.25 (s.d. 5 0.03). The heritability for sow body condition was estimated at 0.14 (s.d. 5 0.02) and that for mean piglet weight at 0.23 (s.d. 5 0.02). The genetic correlation between shoulder ulcers and sow body condition was negative (20.59, s.d. 5 0.09). The genetic correlation between shoulder ulcers and mean piglet weight was positive (0.23, s.d. 5 0.10) and the genetic correlation between sow body condition and mean piglet weight was negative (20.24, s.d. 5 0.10).

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“…As reviewed by Whittemore (1996), a negative energy balance has a negative influence on reproduction hormones such as the luteinizing hormone that is important for the development of follicles in the next reproduction cycle. When producing large and heavy litters, the depletion of body reserves increases the risk for a delay in return to oestrus after weaning (Sterning et al, 1990).…”

Section: Correlationsmentioning

confidence: 99%

“…The other is leanness per se, where leaner sows have less body reserves already from the start of lactation. Poor body condition is related to reproduction problems (Whittemore, 1996;Prunier et al, 2003). Reproduction problems is the main culling reason for sows and a large proportion of this culling takes place in low parity numbers (Engblom et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Genetic parameters for feed intake, litter weight, body condition and rebreeding success in primiparous Norwegian Landrace sows

Lundgren

Fikse

Grandinson

et al. 2014

Animal

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The aim of this study was to estimate genetic parameters for feed intake recorded as farmers' perception of young sows' appetite for the first 3 weeks of lactation (APP) and feed intake recorded for one day in the 3rd week of lactation (FEED), litter weight (LW) at 3 weeks, sow body condition at weaning (BC) and the following five reproduction traits: weaning-to-service interval of 1 to 7 days (WSI7), weaning-to-service interval of 1 to 50 days (WSI50), delayed service or not (DELAYED), pregnant on first service or not (PREGNANT) and litter size in 2nd parity (NBT2). The analyses included data on 4606 Norwegian Landrace 1st-parity sows and their litters. The Gibbs sampling method was used. The traits DELAYED and PREGNANT were analysed as threshold traits and APP, FEED, LW, BC, WSI7, WSI50 and NBT2 were analysed as linear traits. The heritability estimates for APP and FEED were low (<0.1), whereas the estimates for DELAYED and PREGNANT were rather high (0.4 and 0.3). The heritability estimate for BC was 0.2. The genetic correlations confirmed the complexity of breeding for sow performance; selection for heavy 1st litters may lead to lower body condition at weaning, which in turn leads to lower reproductive performance and smaller litters in 2nd parity. Selection for higher sow feed intake would improve body condition, but the simple way of measuring feed intake tested in this study (APP and FEED) cannot be recommended because of the low heritability obtained for these traits.

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Nutrition reproduction interactions in primiparous sows

Cited by 97 publications

References 75 publications

Effect of the feeding level during rearing on performance of Large White gilts. Part 2: effect on metabolite profiles during gestation and lactation, and on glucose tolerance

Effect of the feeding level during rearing on performance of Large White gilts. Part 2: effect on metabolite profiles during gestation and lactation, and on glucose tolerance

Heritability of shoulder ulcers and genetic correlations with mean piglet weight and sow body condition

Genetic parameters for feed intake, litter weight, body condition and rebreeding success in primiparous Norwegian Landrace sows

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