Results 91 to 100 of about 12,798 (245)

Beef cattle reproduction (1993) [PDF]

open access: yes, 1993
New 9/93 ...
Whittier, Jack
core  

Estrus Synchronization in Cattle Following Feeding Six Progestogens

open access: yesJournal 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

Reproductive parameters of dairy goats submitted to estrus synchronization with prostaglandin F2alfa associated or not to hCG at estrous onset. [PDF]

open access: yes, 2015
: The objective of this study was to evaluate the efficiency of two doses of PGF associated or not to hCG on the associated reproductive parameters in dairy goats.
BRANDÃO, F. Z.   +6 more
core  

Estrus Synchronization Protocols for Natural Service

open access: yesEDIS
This 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

Oestrus synchronisation in postpartum dairy cows using repetitive prostaglandin doses: Comparison between D-cloprostenol and dinoprost [PDF]

open access: yes, 2014
This trial evaluated the reproductive performance in an early routine oestrus induction programme using two different PGF2α preparations in dairy cattle.
Molina, Laura   +4 more
core   +1 more source

Comparison between Day 0 and traditional protocols for estrus synchronization and multiple ovulation in crossbred hair sheep

open access: yesJournal of Applied Animal Research, 2019
This study was carried out to compare Day 0 and traditional protocols for in vivo embryo production. Twenty-two crossbred ewes were used as embryo donors and assigned to two groups.
Livia Correia Magalhães   +11 more
doaj   +1 more source

A Survey of Reproductive Management Strategies on US Commercial Dairy Farms [PDF]

open access: yes
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

Arkansas Animal Science Department Report 2002 [PDF]

open access: yes, 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

Comparison of PUFA profiles in the blood and in follicular fluid and its association with follicular dynamics after PGF2α induced luteolysis in dairy cows [PDF]

open access: yes, 2016
The objectives of the present study were to examine the fatty acid (FA) profiles in serum and in the follicular fluid (FF) and the association between polyunsaturated fatty acid level (PUFA) and follicular growth dynamics following induced luteolysis in ...
Adamov, Nikola   +8 more
core   +3 more sources

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