Pivotal periods for pregnancy loss during the first trimester of gestation in lactating dairy cows
Loss of pregnancy can occur at many different stages of gestation and for a variety of causes
but clearly produces a negative impact for reproductive and economic performances of dairy …
but clearly produces a negative impact for reproductive and economic performances of dairy …
Pregnancy losses in cattle: potential for improvement
MG Diskin, SM Waters, MH Parr… - Reproduction, Fertility …, 2016 - CSIRO Publishing
For heifers, beef and moderate-yielding dairy cows, it appears that the fertilisation rate
generally lies between 90% and 100%. For high-producing dairy cows, there is a less …
generally lies between 90% and 100%. For high-producing dairy cows, there is a less …
[图书][B] Mineral nutrition of livestock
N Suttle - 2022 - cabidigitallibrary.org
The physiological functions; pathogenesis, clinical signs, diagnosis, treatment and
prevention of copper deficiency disorders; sources; copper content in feeds and forage; …
prevention of copper deficiency disorders; sources; copper content in feeds and forage; …
[HTML][HTML] The role of progesterone and conceptus-derived factors in uterine biology during early pregnancy in ruminants
This review integrates established and new information on the role of progesterone,
interferon tau (IFNT), and prostaglandins in uterine biology of ruminants. Establishment of …
interferon tau (IFNT), and prostaglandins in uterine biology of ruminants. Establishment of …
[HTML][HTML] Effect of a second treatment with prostaglandin F2α during the Ovsynch protocol on luteolysis and pregnancy in dairy cows
The main objective of this study was to evaluate the effect of a second treatment with
prostaglandin F 2α (PGF) during Ovsynch on regression of the corpus luteum (CL) and on …
prostaglandin F 2α (PGF) during Ovsynch on regression of the corpus luteum (CL) and on …
Development of fertility programs to achieve high 21-day pregnancy rates in high-producing dairy cows
PD Carvalho, VG Santos, JO Giordano, MC Wiltbank… - Theriogenology, 2018 - Elsevier
Our objective is to overview the research that lead to the development of fertility programs for
high-producing lactating dairy cows using only GnRH and Prostaglandin F 2α (PGF 2α) …
high-producing lactating dairy cows using only GnRH and Prostaglandin F 2α (PGF 2α) …
Interferon-tau and fertility in ruminants
N Forde, P Lonergan - Reproduction, 2017 - rep.bioscientifica.com
Establishment of pregnancy in domestic ruminants includes pregnancy recognition
signalling by the conceptus, implantation and placentation. Despite the high fertilisation …
signalling by the conceptus, implantation and placentation. Despite the high fertilisation …
[HTML][HTML] Symposium review: Progesterone effects on early embryo development in cattle
P Lonergan, JM Sánchez - Journal of dairy science, 2020 - Elsevier
The causes of low fertility in dairy cattle are complex and multifactorial and may be due to
compromised follicle development affecting oocyte quality, a suboptimal reproductive tract …
compromised follicle development affecting oocyte quality, a suboptimal reproductive tract …
Role of progesterone in embryo development in cattle
Progesterone (P4) from the corpus luteum is critical for the establishment and maintenance
of pregnancy and plays a major role in regulating endometrial secretions essential for …
of pregnancy and plays a major role in regulating endometrial secretions essential for …
Mechanisms underlying reduced fertility in anovular dairy cows
Resumption of ovulation after parturition is a coordinated process that involves recoupling of
the GH/insulin-like growth factor 1 axis in the liver, increase in follicular development and …
the GH/insulin-like growth factor 1 axis in the liver, increase in follicular development and …