Abstract
Lactation in the sow is characterized by an anestrous period that usually lasts up to 6 wk (Cole et al., 1975). Serum concentrations of luteinizing hormone (LH) are suppressed during lactation (Stevenson et al., 1981; Stevenson and Britt, 1980) while prolactin (PRL) concentrations are elevated (Bevers et al., 1978; Stevenson et al., 1981; Dusza and Krzymowska, 1981). Serum follicle stimulating hormone (FSH) concentrations increase gradually beyond the third week of lactation which appears to be related to a reduction in suckling frequency of the litter (Stevenson et al., 1981). Weaning generally results in an increase in serum LH and FSH (Cox and Britt, 1982; Shaw and Foxcroft, 1985) concentrations and a decrease in serum PRL concentrations (Bevers et al., 1978; van Landeghem and van de Wiel, 1978).KeywordsLuteinizing HormoneFollicle Stimulate HormoneLuteinizing Hormone SecretionEndogenous Opioid PeptideSerum Follicle Stimulate HormoneThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
