Macroscopic Observations on the Reproductive Tract of the Sow during Lactation and Early Postweaning

Palmer, W. M.; Teague, H. S.; Venzke, W. G.

doi:10.2527/jas1965.242541x

Cited by 80 publications

(38 citation statements)

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“…It has been established that folliculogenesis is still active during lactation, although follicles do not reach the ovulatory size (> 6 mm) (Palmer et al, 1965a;Crighton and Lamming, 1969;Kunavongkrit et al, 1982;Rojanasthien et al, 1987a progesterone is observed 6-12 h after weaning, whereas oestradiol-17(3 concentrations increase gradually and continuously from 6 h after weaning . In sows with a normal return to oestrus, plasma oestradiol-17[3 rises significantly within 24&horbar;48 h after weaning (Rojanasthien, 1988;Prunier etal, 1994).…”

Section: Ovarian Activitymentioning

confidence: 99%

Endocrine bases of lactational anoestrus in the sow

Quesnel¹,

Prunier²

1995

Reprod. Nutr. Dev.

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Summary ― Parturition in the sow is followed by a period of anovulation which is prolonged by lactation. Follicular development and luteinizing hormone (LH) secretion are depressed during the last month of pregnancy. After parturition, LH secretion increases but is again inhibited by the establishment of lactation. Lactating sows are submitted to stimuli originating from the young, whose intensity culminates 3-14 d post-partum (pp), and to high nutrient requirements for milk production. The

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Section: Ovarian Activitymentioning

confidence: 99%

Endocrine bases of lactational anoestrus in the sow

Quesnel¹,

Prunier²

1995

Reprod. Nutr. Dev.

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“…Smidt, Scheven and Steinbach (1965) have reported the results of a large survey of swine reproductive behavior that involved up to 1,923 lactation periods. They found a highly significant negative correlation (r=-.192 Palmer, Venzke (1965a and1965b) have examined the reproductive tracts of 40 sows during lactation and after weaning. Macroscopic observations indicated that the uteri had returned to normal weight and length by 2 8 days postpartum.…”

Section: Review Of Literature Reproductive Performance On the First Pmentioning

confidence: 99%

Effect of Reduced Farrowing Interval on Sow Productivity

Moody¹,

Baker²,

Hays³

et al. 1969

Journal of Animal Science

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“…Lactation in the sow is associated with suppressed ovarian activity (Palmer et al 1965), although follicular growth increases from about day 2 1 of lactation (Kunavonskrit et al 1982;Britt et al 1985;l. 1997).…”

mentioning

confidence: 99%