نتایج جستجو برای: conception rate

تعداد نتایج: 982692  

Journal: :Journal of Agrometeorology 2022

The vulnerability of animal production to Thermal Humidity Index (THI) has hardly been documented in India and hence one study on climate weather the conception rate cattle was conducted at Pantnagar, Uttarakhand. In study, meteorological data (2000 2010) were collected from agrometeorological Observatory, Pantnagar used compute six different types by giving weightage dry bulb temperature humid...

Journal: :Journal of animal science 2006
J Minick Bormann L R Totir S D Kachman R L Fernando D E Wilson

The objective of this project was to determine the genetic control of conception rate, or pregnancy percentage in Angus beef heifers. Producers from 6 herds in 5 states provided 3,144 heifer records that included breeding dates, breeding contemporary groups, service sires, and pregnancy check information. Two hundred fourteen sires of the heifers were represented; with 104 sires having less tha...

Sex-sorted semen can increase the profitability of dairy cattle by producing offspring of the desired sex. The objective of the present study was to compare conception rate, stillbirth, calving difficulty and sex ratios from sexed and conventional semen in a commercial dairy herd in Isfahan province, Iran. Data were collected from April 2009 until December 2015 on 13,343 inseminations in 8,011 ...

Hojjat Asadollahpour Nanaei, Mohamad-Ali Edriss Saeid Ansari-Mahyari Samaneh Solemani-Baghshah

For the current research the records of 62 farms in Isfahan province were available. To estimate genetic and phonotypic trends of reproductive traits such as age at first calving, calving interval, days open and number of insemination to conception rate the records of 63,866 cows including 167793 reproductive records were employed. Farms were covered by Vahdat industrial Agriculturists and Dair...

Hojjat Asadollahpour Nanaei, Mohamad-Ali Edriss Saeid Ansari-Mahyari Samaneh Solemani-Baghshah

For the current research the records of 62 farms in Isfahan province were available. To estimate genetic and phonotypic trends of reproductive traits such as age at first calving, calving interval, days open and number of insemination to conception rate the records of 63,866 cows including 167793 reproductive records were employed. Farms were covered by Vahdat industrial Agriculturists and Dair...

Journal: :The Journal of reproduction and development 2008
Hiroshi Miura Satoko Kotani Masayuki Kohiruimaki Hiromichi Ohtsuka Motohiro Kikuchi Yoji Ohnami

The purpose of this study was to determine the relationships between conception rate and other parameters before estrus synchronization with a Controlled Internal Drug Release Device (CIDR) and estradiol benzoate (EB). In the estrus synchronization program, animals were injected with 2 mg EB and then received a CIDR. Seven days later, the CIDR was removed and the animals were given an injection...

Journal: :international journal of advanced biological and biomedical research 2014
samaneh solemani-baghshah saeid ansari-mahyari mohamad-ali edriss hojjat asadollahpour nanaei

for the current research the records of 62 farms in isfahan province were available. to estimate genetic and phonotypic trends of reproductive traits such as age at first calving, calving interval, days open and number of insemination to conception rate the records of 63,866 cows including 167793 reproductive records were employed. farms were covered by vahdat industrial agriculturists and dair...

M. Kabirul Islam Khan, M. Sydur Rahman T. Bilkis

The study was conducted to know the effect of flushed feeding on estrus synchronization and conception rate of Holstein ÍLocal crossbred cow’s after using the GnRH (fertagyl) and PGF2α hormone. As a representative sample 20 Holstein ÍLocal crossbred cows were chosen from Chittagong Cantonment Military Dairy Farm in Bangladesh and the experimental work was carried out for 60 days. Ten cows were ...

Abdalla B Li H Liu Y Mei Ch Shi Zh

Background: The objectives of a series of studies undertaken was to improve farm animal reproductive efficiency in terms of embryo production efficiency, conception rate and litter size by immunoneutralization of inhibin in conjunction with other conventional reproductive techniques. Materials and Methods: A recombinant porcine inhibin alpha-subunit mature peptide was produced by mass scale and...

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