Towards an automated detection of oestrus in dairy cattle

M Saint‐Dizier… - Reproduction in domestic …, 2012 - Wiley Online Library
Contents Heat detection is a key factor in the profitability of dairy herds. However, this
detection demands a significant part of the breeder's working time and is made difficult by …

Heat stress, the follicle, and its enclosed oocyte: mechanisms and potential strategies to improve fertility in dairy cows

Z Roth - Reproduction in Domestic Animals, 2008 - Wiley Online Library
Contents Reduced reproductive performance of lactating cows during the summer is
associated with decreased thermoregulatory competence due to intensive genetic selection …

Impact of dietary fatty acids on oocyte quality and development in lactating dairy cows

AA Fouladi-Nashta, CG Gutierrez, JG Gong… - Biology of …, 2007 - academic.oup.com
The purpose of this study was to examine the effects of level of rumen inert fatty acids on
developmental competence of oocytes in lactating dairy cows. Estrous cycles were …

Effect of the association of IGF-I, IGF-II, bFGF, TGF-β1, GM-CSF, and LIF on the development of bovine embryos produced in vitro

JA Neira, D Tainturier, MA Pena, J Martal - Theriogenology, 2010 - Elsevier
This study examined the influence of the following growth factors and cytokines on early
embryonic development: insulin-like growth factors I and II (IGF-I, IGF-II), basic fibroblast …

[HTML][HTML] The effect of heat stress on performance, fertility, and adipokines involved in regulating systemic immune response during lipolysis of early lactating dairy …

B Stefanska, P Sobolewska, V Fievez… - Journal of Dairy …, 2024 - Elsevier
The aim of this study was to assess the potential effect of heat stress on dairy cow
productivity, fertility, and biochemical blood indices during the early lactation stage in a …

Corpus luteum function and embryonic mortality in buffaloes treated with a GnRH agonist, hCG and progesterone

G Campanile, R Di Palo, G Neglia, D Vecchio… - Theriogenology, 2007 - Elsevier
The effect of treatment with a GnRH agonist, hCG or progesterone (P4) on corpus luteum
function and embryonic mortality was investigated in buffaloes inseminated during mid …

[HTML][HTML] Growth hormone receptor, insulin-like growth factor (IGF)-1, and IGF-binding protein-2 expression in the reproductive tissues of early postpartum dairy cows

ML Rhoads, JP Meyer, SJ Kolath, WR Lamberson… - Journal of Dairy …, 2008 - Elsevier
The growth hormone/insulin-like growth factor (IGF) system plays a critical endocrine role
controlling nutrient metabolism in dairy cattle. In liver, growth hormone receptor (GHR) and …

[HTML][HTML] Association of pregnancy per artificial insemination with gonadotropin-releasing hormone and human chorionic gonadotropin administered during the luteal …

M Besbaci, A Abdelli, JJ Minviel, I Belabdi, R Kaidi… - Journal of dairy …, 2020 - Elsevier
One strategy for improving fertility in cattle is administration of GnRH or human chorionic
gonadotropin (hCG) during the luteal phase, which increases progesterone (P4) secretion …

Economics of treatment with GnRH agonist 7–14 days after artificial insemination in repeat breeder lactating dairy cows

SI Borş, A Borş, ASS Abdoon - Reproduction in Domestic …, 2023 - Wiley Online Library
This study looked at the effectiveness and financial benefits of treating repeat breeder (RB)
dairy cows with the GnRH agonist gonadorelin 7–14 days after artificial insemination (AI). A …

Effect of equine chorionic gonadotropin (eCG) administration and proestrus length on ovarian response, uterine functionality and pregnancy rate in beef heifers …

R Núñez-Olivera, F Cuadro, D Bosolasco, V de Brun… - Theriogenology, 2020 - Elsevier
The objective of the present study was to evaluate the effect of equine chorionic
gonadotropin (eCG) administration associated to different proestrus lengths for Fixed-time AI …