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.
|Published (Last):||9 May 2016|
|PDF File Size:||2.38 Mb|
|ePub File Size:||16.60 Mb|
|Price:||Free* [*Free Regsitration Required]|
Behavioural Brain Researchv. As vacas foram divididas, ao acaso, em dois gacas. Sensory and behavioural control of gonadotrophin secretion during suckling-mediated anovulation in cows.
Journal Reproduction Fertilityv. Porto Alegre Sulina,p.
Direct and indirect regulation of gonadotropin-releasing hormone neurons by estradiol. Reprod Nutr Dev 46, Embrapa Clima Temperado, However, dairy cows that currently develop OFC only present anestrus PeterVanholder et al Effects of leptin on gonadotropin-releasing hormone release from hypothalamic-infundibular explants and gonadotropin release from adenohypophyseal primary cell cultures: Seasonal changes in nutritional status and reproductive performance of Zebu cows kept under a traditional agro-pastoral system in Tanzania.
Reproductive clinicians should be attentive to these findings, as this ovarian condition not only increases the calving interval, but also significantly raises the risk of elimination of cows from the herd. Domest Anim Endocrin 23, Nutrient requirements of dairy cattle.
Effect of treatment with progesterone on pregnancy rate and plasma concentrations of progesterone in Holstein cow.
GnRH control during bovine postpartum anestrous
Australian Veterinary Journalv. Postpartum acyclicity in suckled beff cows. Pattern and manipulation of follicular development in Bos Indicus cattle. Palabras clave Nutrition; suckling; folicullar growth; ovulation; ciclicity. Trends in Endocrinology and Metabolismv. Stimulation of gonadotropin-releasing hormone surges by estrogen. Characterization of a cDNA encoding a novel avian hypothalamic neuropeptide exerting an inhibitory effect on gonadotropin release. Estrogen directly represses gonadotropin-releasing hormone GnRH gene expression in estrogen receptor-?
Amino acid neurotransmitter release in the preoptic area of rats during the positive feedback actions aneatro estradiol on LH release.
Anestro posparto en ganado bovino en el trópico | Báez | Revista MVZ Córdoba
Energy balance, first ovulation and the effects of naloxone on LH secretion in early postpartum dairy cows. The treatments 1 received only one mineral supplement and treatments 2 received the same batch mineral supplement added 2.
Journal of Reproduction and Fertilityv. Risk vacxs for postpartum ovarian cysts and their spontaneous recovery or persistence in lactating dairy cows.
Role of hypothalamic progesterone receptors. Association between energy balance and luteal function in lactating dairy cows.
Revista MVZ Córdoba
Suppression of leptin during lactation: The incidence of ovarian follicular cysts OFC in relation to reproductive performance in a dairy herd was determined. Some aspects of thecal and granulosa cell function during follicular development in the bovine ovary.
Factors afecting calf crop. The association between lameness, ovarian cyst and fertility in lactating dairy cows.
Chronic administration of recombinant ovine leptin in growing beef heifers: