Reproductive technologies in farm animals

I Gordon - 2017 - books.google.com
Building on the successful structure of the first edition, the second edition of Reproductive
Technologies in Farm Animals has been totally updated and revised to provide an up to date …

[HTML][HTML] Symposium review: Selection for fertility in the modern dairy cow—Current status and future direction for genetic selection

MC Lucy - Journal of dairy science, 2019 - Elsevier
The establishment of pregnancy following insemination is the primary definition of fertility in
most dairy systems. Highly fertile cows establish pregnancy sooner after calving and require …

[HTML][HTML] Intensity of estrus following an estradiol-progesterone-based ovulation synchronization protocol influences fertility outcomes

AML Madureira, LB Polsky, TA Burnett, BF Silper… - Journal of dairy …, 2019 - Elsevier
The objective of this study was to examine the association between increased physical
activity at the moment of timed artificial insemination (AI), detected by an automated activity …

[HTML][HTML] Factors associated with estrous expression and subsequent fertility in lactating dairy cows using automated activity monitoring

CM Tippenhauer, JL Plenio, AML Madureira… - Journal of Dairy …, 2021 - Elsevier
The objective of this observational study was to identify factors associated with estrous
duration (DU) and intensity measured as the peak of activity (PA) change and subsequent …

The negative impact of lameness on dairy cow reproduction

G Tsousis, C Boscos… - Reproduction in Domestic …, 2022 - Wiley Online Library
Lameness in modern dairy farms is a prevalent disorder that negatively affects all aspects of
production. Additionally, is a prevailing contributor to the decreased welfare of cows. Recent …

[HTML][HTML] Association of activity and subsequent fertility of dairy cows after spontaneous estrus or timed artificial insemination

CM Tippenhauer, JL Plenio, W Heuwieser… - Journal of Dairy …, 2023 - Elsevier
The objective of this observational study was to evaluate the association between increased
physical activity at first artificial insemination (AI) and subsequent pregnancy per AI (P/AI) in …

[HTML][HTML] The effect of progesterone concentrations during superovulation of Holstein heifers in a randomized trial

JCS Marques, JPO Maciel, J Denis-Robichaud… - Journal of Dairy …, 2023 - Elsevier
The aim of this study was to evaluate the effect of different progesterone (P4) concentrations
during the follicular growth on the intensity of estrous expression, ovarian response to the …

[HTML][HTML] Genomic merit for reproductive traits. I: Estrous characteristics and fertility in Holstein heifers

A Veronese, O Marques, R Moreira, AL Belli… - Journal of dairy …, 2019 - Elsevier
Genetic selection of dairy cattle in the United States has included reproductive traits
(daughter pregnancy rate, DPR; heifer conception rate, HCR), which is believed to have …

Plasma concentrations of progesterone in the preceding estrous cycle are associated with the intensity of estrus and fertility of Holstein cows

AML Madureira, TA Burnett, S Borchardt… - PLoS …, 2021 - journals.plos.org
The aim of this study was to determine the association between concentrations of
progesterone (P4) during previous the estrous cycle with the intensity of spontaneous or …

[HTML][HTML] Potential of an activity index combining acceleration and location for automated estrus detection in dairy cows

J Wang, Y Zhang, M Bell, G Liu - Information Processing in Agriculture, 2022 - Elsevier
The objective of this study was to assess the effectiveness and practicability of an activity
index combining acceleration and location data for automated estrus detection in dairy …