TY  - JOUR
T1  - Lactational Estrus in Sows, a Way to Increase the Number of Farrowings Per Sow Per Year
AU - , M. Alonso-Spilsbury AU - , L. Mayagoitia AU - , M.E. Trujillo AU - , R. Ram?rez- Necoechea AU - , D. Mota-Rojas 
JO  - Journal of Animal and Veterinary Advances
VL  - 3
IS  - 5
SP  - 294
EP  - 305
PY  - 2004
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2004.294.305
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2004.294.305
KW  - 
AB  - During lactation the sow generally remains anestrus. However, lactational estrus and ovulation sometimes occurs under unusual circumstances. Practical outcomes of lactational estrus are reducing the interval between weaning and estrusand therefore the non-productive days in the herd. Although various techniques to induce lactational estrus have been performed through natural management of the animals or the use of exogenous hormones during lactation, induction of estrus during lactation has not been recommended for commercial use. The objective of this study was to review and analyze the basic lactating sow physiology and the different methodologies to induce lactational ovulation, in order to improve her reproductive and productive performance, as a possible alternative to the early weaning system, especially in those cases where lactation length is determined by welfare constraints.
ER  -