Results 81 to 90 of about 11,211 (201)
Effects Of Timing Prostaglandin F2α Injection Following Controlled Internal Drug Release Insert Removal On Oestrus Response, Follicular Dynamics And Pregnancy Rate In Nelore Cattle [PDF]
, 2008 This research was conducted to evaluate the effect of oestrus synchronization protocol on oestrus response, follicular dynamics, pregnancy rate, and cortisol and progesterone concentrations in Nelore cattle under two types of handlings.
Attia Hussein, Mohamed Ali
core
The FASEB Journal, Volume 40, Issue 4, 28 February 2026.Sex and the developmental environment shape molecular networks underlying bronchial responsiveness in mice. A methacholine challenge was performed on 13‐week‐old isogenic male and female offspring (+/− developmental particulate matter exposure) to show that males had significantly higher bronchial responsiveness (red arrows) than females.
Razia Zakarya +8 more
wiley +1 more source
Arkansas Animal Science Department Report 2002 [PDF]
, 2002 The faculty and staff of the Animal Science Program are pleased to present the sixth edition of the Arkansas Animal Science Report. As with virtually all programs in the country, budget constraints presented serious challenges to teaching, research, and ...
Johnson, Zelpha B., Kellogg, D. Wayne
core +2 more sources
New Zealand Journal of Agricultural Research, Volume 69, Issue 1, February 2026.This study utilised passively collected calving and artificial insemination (AI) records from 141 commercial herds equipped with ‘wearables’ (on‐animal sensors for oestrus detection) to investigate their reproductive performance before and after adoption, relative to 1158 ‘non‐wearable' reference herds matched on geographic location, herd size, planned
J. Paul Edwards +4 more
wiley +1 more source
Scientific Papers Animal Science and Biotechnologies, 2023 There are a variety of hormonal protocols and products on the market, but it is still unclear how they will work on specific field conditions. The efficacy of using different forms of prostaglandin F2α analogues such as dinoprost and cloprostenol in a ...
Alexandru Marius Deac +6 more
doaj
Estrus Synchronization in Cattle Following Feeding Six Progestogens
Journal of Dairy Science, 1968 Abstract The oral effectiveness of six progestogens in synchronizing estrus was determined in dairy heifers. The hormones were fed in a concentrate ration twice daily for 17 or 18 days. Four progestogens effectively synchronized estrous cycles at the levels studied. Progestogen 1 (6 α -methyl-4-pregnen-17-Ol-one acetate) synchronized estrus at minimum
A C, Menge, J J, Christian
openaire +2 more sources
Using MGA to shorten the beef breeding season (2002) [PDF]
, 2002 Modified conventional synchronization systems for beef cows boost fertility and increase the total number of females that can be inseminated.New March 2002 -- Extension ...
Kojima, F. N. +4 more
core
Estrus Synchronization Protocols for Natural Service
EDISThis publication is intended for producers interested in improving the reproductive efficiency and performance of their cows. This publication explains the process of estrus synchronization and the protocols that can be used for natural service synchronization.
Daniella Heredia +2 more
openaire +3 more sources
A Survey of Reproductive Management Strategies on US Commercial Dairy Farms [PDF]
Reproductive performance on the dairy farm affects the dairy’s profit because it directly affects milk production, the availability of replacements, the amounts of voluntary and involuntary culling, breeding costs, and costs associated with veterinary ...
Olynk, Nicole J., Wolf, Christopher A.
core +1 more source