Results 11 to 20 of about 3,440 (176)

Efficacy of Two Estrus Synchronization Protocols in Crossbred Gyr Dairy Cows and Their Relationship with Heat Stress in the Peruvian Tropics [PDF]

open access: yesVeterinary Sciences
The performance of estrus synchronization protocols may be influenced by stressful environmental conditions, even in tropically adapted cattle. This study evaluated the efficacy of two synchronization protocols for fixed-time artificial insemination ...
Ronald W. Vásquez-Tarrillo   +8 more
doaj   +2 more sources

The CIDR-GPG Protocol Improves Reproductive Efficiency in Yaks and Lowers the Body Condition Requirements for Success [PDF]

open access: yesAnimals
Yaks are a critical livestock species for plateau regions; however, their poor reproductive efficiency—characterized by low estrus and pregnancy rates—significantly hampers genetic improvement and industry sustainability.
Zhuoyuan Song   +12 more
doaj   +2 more sources

ESTRUS SYNCHRONIZATION APPLICATIONS UTILIZED IN RUMINANT ANIMALS: A REVIEW [PDF]

open access: yesمجلة الأنبار للعلوم الزراعية, 2023
Several estrus synchronization programs for cattle utilize a variety of hormones, including progesterone, prostaglandin PGF2α, estrogen, and GnRH, either individually or in combination.
M. A. Shareef, A. H. Essa, Osama Saeed
doaj   +1 more source

Efficacy of Pre-Synchronization and CIDR on the Outcome of Short-TermSynchronization Program in Zandi Ewes During the Breeding Season [PDF]

open access: yesIranian Journal of Veterinary Medicine, 2021
BACKGROUND: Timed breeding programs are essential to implementing extensive artificial insemination (AI) programs in sheep. OBJECTIVES: This study aimed to evaluate whether application of pre-synchronization and controlled internal drug releasing (CIDR ...
Reza Arjmandi   +4 more
doaj   +1 more source

INFLUENCE OF ESTRUS PRE-SYNCHRONIZATION ON REPRODUCTIVE VARIABLES IN KATAHDIN EWES CARRIERS OF THE GDF9 GENE

open access: yesTropical and Subtropical Agroecosystems, 2023
Background: Genetic improvement in the sheep species focuses on increasing the number of offspring per sheep. Heritable characteristics such as ovulation rate, fertility, and prolificacy are desirable.
Dante J. Hernández-Rubio   +5 more
doaj   +1 more source

Development of a new protocol for estrus induction and synchronizationin multiparous weaned sows

open access: yesIndian Journal of Animal Sciences, 2023
Estrus induction and estrus synchronization with P.G. 600 to improve the reproductive performance of multiparous sows is a standard protocol.
MAHAK SINGH   +6 more
doaj   +1 more source

POST-PARTUM SUB-CLINICAL ENDOMETRITIS- ALTERATION IN UTERINE HAEMODYNAMICS, INFLAMMATORY MARKERS ON TREATMENT WITH MODIFIED ESTRUS SYNCHRONIZATION PROTOCOLS IN DAIRY COWS [PDF]

open access: yesSPERMOVA, 2021
Forty-one dairy cows (n=41) were enrolled to envisage the changes in uterine haemodynamics during sub-clinical endometritis (SCE) and its treatment with modified estrus synchronization protocols at 8 weeks post-partum.
Akshay Sharma   +4 more
doaj   +1 more source

APPLICATION OF ESTRUS SYNCHRONIZATION USING PGF2α AND OVULATION SYNCHRONIZATION USING hCG FOR ARTIFICIAL INSEMINATION OPTIMIZATION ON ONGOLE (PO) BREED CATTLE

open access: yesJurnal Kedokteran Hewan, 2018
This study aimed to determine the pregnancy percentage of Ongole (PO) breed cattle by estrus synchronization and ovulation synchronization. This study used 22 cattle that were divided into three groups: Estrus synchronized cattle (K1, n= 5); ovulation ...
Mutmainnah Mutmainnah   +2 more
doaj   +1 more source

Induction and Synchronization of Estrus

open access: yes, 2021
Estrus cycle is a rhythmic change that occur in the reproductive system of females starting from one estrus phase to another. The normal duration of estrus cycle is 21 days in cow, sow, and mare, 17 days in ewe, and 20 days in doe. The species which exhibit a single estrus cycle are known as monstrous and species which come into estrus twice or more ...
Prasanna Pal, Mohammad Rayees Dar
openaire   +2 more sources

Estrus Synchronization in Black Bengal Goat Using Synthetic Progesterone

open access: yesJournal of Agriculture, Food and Environment, 2022
Estrus synchronization is an effective technique that overcomes the bottlenecks associated with estrus detection failure in livestock. This study was directed to elucidate the beneficial outcomes of estrus synchronization in Black
Khandoker MAMY
doaj   +1 more source

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