Results 1 to 10 of about 100,933 (268)

Evaluation of hormonal treatments for different scenarios of cystic ovarian follicles in dairy cattle [PDF]

open access: yesThe Iranian Journal of Veterinary Science and Technology, 2021
< p>< p>The present study aimed to evaluate the efficacy of different hormonal interventions in the treatment of cystic ovarian follicles (COF) based on different scenarios, including the size of the cyst and the presence of other follicles on the ...
Masoud Haddadi   +2 more
doaj   +1 more source

Comparison of the effect of Gonadotropin-Releasing Hormone and Human Chorionic Go3nadotropin on Reproductive Performance of Romanov Ewes During the Natural Breeding Season [PDF]

open access: yesArchives of Razi Institute, 2022
Low pregnancy rate is an important issue in small ruminants. Superovulation protocols would serve as the possible techniques to increase the pregnancy rate in small ruminants due to the use of synthetic hormones.
M Didarkhah, M Vatandoost
doaj   +1 more source

Estrus Synchronization Using Prostaglandin F2α (PGF2α) and Combination of PGF2α and Gonadotropin-Releasing Hormone In Ongole Crossbred [PDF]

open access: yesE3S Web of Conferences, 2020
The response of estrus can be enhanced by providing PGF2α and a combination of PGF2αGnRH so that the time of mating using Artificial Insemination (AI) can be held precisely.
Astuti Pudji   +6 more
doaj   +1 more source

Comparison between the CIDR or sponge with hormone injection to induce estrus synchronization for twining and sex preselection in Naimi sheep

open access: yesOpen Chemistry, 2023
The management of sheep reproduction requires the induction and synchronization of the estrus cycle and ovulation for the ewe out-of-season and/or synchronized lambing.
Alhimaidi Ahmad R.   +4 more
doaj   +1 more source

Physiology and modulation factors of ovulation in rabbit reproduction management

open access: yesWorld Rabbit Science, 2021
Rabbit is an induced ovulatory species, so ovulation takes place after mating. Traditionally, exogenous and synthetic hormonal factors (administered by intramuscular and intravaginal route) such as GnRH and analogues, or different physical procedures (i ...
Simona Mattioli   +7 more
doaj   +1 more source

Evaluation of testicular hemodynamics following gonadotropin-releasing hormone administration with the aid of pulse wave Doppler in rams and their relation to hormonal response

open access: yesSVU-International Journal of Veterinary Sciences, 2021
The vascularization of the testis through testicular artery is of great importance to maintain its normal function. The vascular disruption due to inadequate arterial blood flow of the testis negatively affects testicular function and semen quality ...
Mohammed Rawy   +3 more
doaj   +1 more source

The effect of intrauterine infusion of carvacrol after insemination on conception rate in repeat breeder cows subjected to progesteron based estrus synchronization protocol [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2019
Repeat breeder (RB) is one of the crucial causes of economic loss in dairy cows. The aim of this study was to determine the effects of intrauterine carvacrol administration after timed artificial insemination (TAI) on the conception rate (CR) in RB cows.
Necdet Cankat LEHİMCİOĞLU   +3 more
doaj   +1 more source

Superovulation following follicular synchronization with GnRH at random stages of the oestrous cycle in heifers

open access: yesCzech Journal of Animal Science, 2011
The objective of this study was to develop a superovulatory program based on synchronization of follicular waves with GnRH which could be applied regardless of the stage of the oestrous cycle.
H. Kohram   +3 more
doaj   +1 more source

Superovulation following follicular synchronization with GnRH at random stages of the oestrous cycle in heifers: oocyte competence and in vitro embryo production

open access: yesCzech Journal of Animal Science, 2010
The objective of this study was to develop a superovulatory program based on the synchronization of follicular waves with GnRH which could be applied regardless of the stage of the oestrous cycle.
H. Kohram, V. Vahedi, A. Farahavar
doaj   +1 more source

Effects of Gonadotropin Releasing Hormone (GnRH) on bovine spermatogonial stem cell proliferationatogonial stem cells proliferation [PDF]

open access: yesThe Iranian Journal of Veterinary Science and Technology, 2014
Identification of exogenous factors affecting spermatogonial stem cells (SSCs) proliferation in vitro, provides worthy ways to study the basic biology of the cells.
Parviz Tajik   +5 more
doaj   +1 more source

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