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) …

[HTML][HTML] New approaches to diagnose and target reproductive failure in cattle

KG Pohler, ST Reese, GA Franco… - Animal …, 2020 - SciELO Brasil
Reproductive failure and pregnancy loss in cattle are some of the largest economic burdens
to cattle producers and one of most perplexing factors influencing management decisions …

Effect of feeding rumen-protected methionine on productive and reproductive performance of dairy cows

MZ Toledo, GM Baez, A Garcia-Guerra, NE Lobos… - PloS one, 2017 - journals.plos.org
The objectives of this study were to evaluate the effects of daily top-dressing (individually
feeding on the top of the total mixed ration) with rumen-protected methionine (RPM) from …

[HTML][HTML] Maintenance of the ruminant corpus luteum during pregnancy: interferon-tau and beyond

MC Wiltbank, PLJ Monteiro, RR Domingues… - animal, 2023 - Elsevier
This manuscript reviews the mechanisms that maintain the corpus luteum (CL) of pregnancy
in ruminants. In mammals, ovulation and luteinization of the remaining cells in the CL are …

[HTML][HTML] Manipulation of progesterone to increase ovulatory response to the first GnRH treatment of an Ovsynch protocol in lactating dairy cows receiving first timed …

PD Carvalho, MC Wiltbank, PM Fricke - Journal of dairy science, 2015 - Elsevier
Ovulation to the first GnRH (G1) treatment of the Ovsynch protocol improves synchronization
rate and pregnancies per AI (P/AI). Elevated progesterone (P4) concentrations at G1 …

Seminal plasma modulates expression of endometrial inflammatory meditators in the bovine

LA Ibrahim, JA Rizo, PLP Fontes, GC Lamb… - Biology of …, 2019 - academic.oup.com
Seminal plasma has conventionally been viewed as a transport and survival medium for
mammalian sperm; however, its role now extends beyond this process to actively targeting …

[HTML][HTML] Adding a second prostaglandin F2α treatment to but not reducing the duration of a PRID-Synch protocol increases fertility after resynchronization of ovulation …

VG Santos, PD Carvalho, C Maia, B Carneiro… - Journal of dairy …, 2016 - Elsevier
Our objective was to evaluate the effect of a second PGF 2α treatment and duration of an
Ovsynch protocol that included a progesterone-releasing intravaginal device (PRID) on …

Feasibility of Supplying Ruminally Protected Lysine and Methionine to Periparturient Dairy Cows on the Efficiency of Subsequent Lactation

SA Elsaadawy, Z Wu, D Bu - Frontiers in veterinary science, 2022 - frontiersin.org
The objective of this study was to evaluate the effects of supplying ruminally protected Lys
(RPL) and ruminally protected Met (RPM) to transition cows' diets on the efficiency of …

[HTML][HTML] Physiological mechanisms involved in maintaining the corpus luteum during the first two months of pregnancy

MC Wiltbank, MA Mezera, MZ Toledo… - Animal …, 2018 - ncbi.nlm.nih.gov
Maintenance of the corpus luteum (CL) during pregnancy is essential for continuing the
elevated circulating progesterone (P4) that is required to maintain pregnancy. The …

Clinical disease incidence during early lactation, risk factors and association with fertility and culling in grazing dairy cows in Uruguay

I Cruz, I Pereira, G Ruprechter, J Barca, A Meikle… - Preventive veterinary …, 2021 - Elsevier
This paper aims to describe clinical disease incidence in early lactation and explore its
association with fertility and culling in 13 commercial grazing dairy herds in Uruguay. Seven …