Results 61 to 70 of about 2,055 (165)

Repeat Breeder Syndrome Therapies in Dairy Cows: A Review

open access: yesReproduction in Domestic Animals, Volume 59, Issue 10, October 2024.
ABSTRACT Repeat breeder (RB) cows are clinically healthy animals with regular oestrous cycles that do not become pregnant after three or more services. This syndrome has an incidence ranging between 10.1% and 24%. Repeat breeder syndrome (RBS) in dairy cows leads to economic losses to dairy farmers by increasing the calving interval and consequently ...
Alice Carbonari   +4 more
wiley   +1 more source

Taxa de prenhez de novilhas de corte submetidas à IATF com protocolo a base de BE ou Ovsynch modificado

open access: yes, 2018
O presente estudo avaliou o desempenho reprodutivo de 217 novilhas de corte submetidas a diferentes protocolos de inseminação artificial em tempo fixo (IATF), seguidos pelo repasse com touros.
Carlos Santos Gottschall   +1 more
core   +1 more source

Effect of increasing GnRH dose during Double- Ovsynch on fertility of lactating dairy cows

open access: yes, 2023
The rate of ovulation to the first GnRH treatment of Ovsynch-type protocols is key to achieve excellent fertility. In cows syn­chronized with the Double-Ovsynch protocol (DO), only around half of the cows ovulate to the third GnRH injection (first GnRH ...
Stangaferro, M. L.   +3 more
core   +1 more source

Эффективность управления воспроизводительной функцией у коров по программе синхронизации «Ovsynch» [PDF]

open access: yes, 2019
крс, воспроизводительная функция, программа синхронизации, ovsynch ...
Немцова, А. С.
core   +1 more source

Early prognostic markers to predict unsuccessful pregnancy in dairy cattle

open access: yesReproduction in Domestic Animals, Volume 59, Issue 5, May 2024.
Abstract This study aimed to investigate maternal serum levels of some angiogenic factors and certain proteins in dairy cattle for (1) early prediction of unsuccessful fertilization and (2) early detection of possible pregnancy failures (early EM) after positive insemination Serum samples were collected from the same cattle at three distinct time ...
Beran Yokus   +4 more
wiley   +1 more source

Ovsynch synchronization and fixed-time insemination in goats

open access: yes, 2008
This study assessed the efficacy of an Ovsynch protocol (vs. the classical cronolone containing vaginal sponge + eCG treatment) to generate fixed-time insemination in goats during the breeding season. Each regimen was applied to 24 Boer goat does.
Sohnrey, Birgit   +3 more
core   +1 more source

PENGARUH DOSIS GnRH PADA OVSYNCH PROTOCOL TERHADAP LITTER SIZE, SEX RATIO, DAN BOBOT LAHIR PADA KAMBING YANG BERBEDA PARITAS [PDF]

open access: yes, 2020
Penelitian ini bertujuan untuk mengetahui pengaruh dosis GnRH pada Ovsynch protocol terhadap litter size, bobot lahir, dan sex ratio pada kambing yang berbeda paritas.
Agung, Syafriadi
core   +1 more source

Comparative Study of Pregnancy Rate of Dairy Cows Inseminated with Fresh or Frozen-Thawed Semen

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2020
The aim of this study was to investigate conception rates (CR) achieved with artificial insemination of Holstein cows using fresh or frozen insemination doses (ID). The synchronization protocols (Double-Ovsynch, Ovsynch, ReSynch) and pedometers were used
Jan Pytlík   +3 more
doaj   +1 more source

Determination of expression patterns of miR‐26a, and preimplantation factor levels for early pregnancy detection in nulliparous and multiparous cows

open access: yesReproduction in Domestic Animals, Volume 59, Issue 1, January 2024.
Abstract For maximum productivity in a dairy farm, the earliest and the most accurate detection of pregnancy is essential. The aim of this study was to determine the efficacy of expression patterns of miR‐26a, and serum Preimplantation Factor (PIF) levels for pregnancy diagnosis during the early pregnancy in nulliparous and multiparous cows. A total of
Kemal Tuna Olğaç   +4 more
wiley   +1 more source

Estrus Induction and Fertility Response following Ovsynch Alone and Ovsynch plus PRID Protocol in Postpartum Anestrus Surti buffaloes

open access: yes, 2017
The study was undertaken to find out the estrus induction and conception rate in 18 postpartum anestrus Surti buffaloes divided equally into three groups and treated with Ovsynch protocol alone and in combination with PRID, keeping one group as control ...
C. T. Khasatiya   +3 more
core   +1 more source

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