CIRCANNUAL ESTROUS VARIATIONS AND OVULATION RATE IN PELIBUEY EWES

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:32:05Z
Fecha de publicación1992-01-01
ResumenTwelve cycling, mature ewes were kept with two vasectomized rams under constant nutrition maintenance conditions to study annual estrous activity and ovulation. Mean ovulation rate per month was 1.2 corpora lutea (CL)/ewe and 1.72 CL/ewe ovulating, mean proportion of ewes ovulating per month was 69\%; proportions of ewes ovulating varied significantly (P<0.001) among months. The month with lowest number of CL/ewe and proportion of ewes ovulating was April (0.2 and 20\%). Months with highest values were May (1.86 and 86\%) and July (1.83 and 83\%). Annual mean ovulation rate per ewe and per ewe in estrus were 1.19 and 1.72 CL, respectively. Monthly proportions of observed estrus (OE) over expected estrus (EE) {[}O/E] differed significantly (P<0.001), and April (24\%) and August (97\%) were the lowest highest months (P<0.025), respectively. On a trimester basis, proportions also differed (P<0.001), being higher during the two trimesters from July through December. Estrous cycles were divided into short (<12 d), regular (13-20 d) or long (>22 d), proportions for each class were 4, 70 and 26\%, respectively. Results indicated that Pelibuey ewes exhibit estrous cycles regularly from May through December, and the frequency of estrous cycles declines significantly from February through April, due perhaps to factors such as temperature or humidity.es_ES
Doihttps://doi.org/10.1016/0921-4488(92)90043-4es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/3965
Idiomaenes_ES
EditorialELSEVIER SCIENCE BVes_ES
RelaciónSmall Ruminant Researches_ES
URL relacionadohttps://doi.org/10.1016/0921-4488(92)90043-4es_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuenteSmall Ruminant Research
TítuloCIRCANNUAL ESTROUS VARIATIONS AND OVULATION RATE IN PELIBUEY EWESes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorGONZALEZ, A
AutorMURPHY, BD
AutorFOOTE, WC
AutorORTEGA, E
AutorGONZALEZ, Aes_ES
AutorMURPHY, BDes_ES
AutorFOOTE, WCes_ES
AutorORTEGA, Ees_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número3es_ES
Rango de páginas225-232es_ES
URL relacionadahttps://doi.org/10.1016/0921-4488(92)90043-4
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen8es_ES

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