English: The aim of the present study was to induce oestrus in postpartum anoestrus dairy cows after the application of two hormonal treatments. With this. Controle sobre GnRH durante o anestro pós-parto em bovinos A secreção do hormônio folículo estimulante (FSH) em vacas retorna aos padrões do ciclo. 18 jun. O seu uso é recomendado para melhorias na fixação e taxas de concepção de vacas em anestro pós-parto, face auxiliar na sincronia do estro.

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Pregnancy rates in milking Nelore cows submitted to progesterone treatment associated to temporary calf removal or eCG administration. This study aimed to evaluate the effects of temporary calf removal TCR or eCG administration on pregnancy rates of milking Nelore cows treated with a intravaginal progesterone releasing device IPRD. In the first experiment 83 Nelore and Nelore vs. Red Angus crossbred cows were randomly allocated to 3 groups.

The animals were artificially inseminated AI 12 h after estrus detection. Pregnancy rates for Nelore and crossbred cows were, respectively, 7.

In the second experiment, lactating Nelore cows were allocated to 3 groups. Resultados similares foram descritos por Rivera et al. Segundo DAS et al.

GnRH control during bovine postpartum anestrous

The use of hormonal treatments to improve reproductive performance of anestrous beef cattle in tropical climates. Animal Reproduction Sciencev. Reproductive losses in beef industry.


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Effects of induction of low plasma progesterone concentrations with a progesterone-releasing intravaginal device on follicular turnover and fertility in cattle. Journal Reproduction Fertilityv. Patterns of tonic luteinizing hormone release and ovulation frequency in suckled anestrous beef cows following varying intervals of temporary weaning. In vitro secretion of prostaglandins from endometrium of postpartum beef cows expected to have short or normal luteal phases.


Anestro posparto en ganado bovino en el trópico | Báez | Revista MVZ Córdoba

Biology Reproductionv. Concentrations of progesterone and oxytocin receptors in endometrium of postpartum cows expected o have a short or normal oestrus cycle.

Effect of steroids and 48 hr calf removal on serum luteinizing hormone concentrations in anestrous beef cows. Sensory and behavioural control of gonadotrophin secretion during suckling-mediated anovulation in cows. Research needs in beef cattle reproduction. Physiological classification of anovulatory conditions in cattle.

Induction of ovulation in postpartum suckled beff cows. Postpartum acyclicity in suckled beff cows.

Synchronization of estrus in suckled postpartum beef cows with melengestrol acetate, 48 hour calf removal and PGF2a. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Services on Demand Journal. How to cite this article.

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