Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 408839
Title Variation in LH pulsatility during 24 h after a postweaning altrenogest treatment in relation to follicle development in primiparous sows
Author(s) Leeuwen, J.J.J. van; Martens, M.R.T.M.; Jourquin, J.; Draincourt, M.A.; Kemp, B.; Soede, N.M.
Source Animal Reproduction Science 126 (2011)1-2. - ISSN 0378-4320 - p. 101 - 107.
Department(s) Adaptation Physiology
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) luteinizing-hormone - allyl trenbolone - ovarian-function - lactating sows - ovulation rate - luteal-phase - protein loss - litter size - estrus - gilts
Abstract This study assessed pulsatile release of LH during altrenogest treatment after weaning in primiparous sows and related this to follicle development, estrus and ovulation rate. Weaned sows (n = 10) received altrenogest 20 mg/day from D-1 to D13 (weaning = D0) at 0800 h. On D13, blood samples were collected every 12 min from 1000 until 1900 h (1st sampling period) and from 2300 h until 0800 h (2nd sampling period). During the 1st sampling period, LH concentrations remained low and no LH pulses were detected in 8/10 sows. During the 2nd sampling period, average and basal LH concentrations (P <0.04) and frequency of pulses (P <0.0001) were higher than during the 1st sampling period. Sows with short vs. long intervals to estrus (
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