نتایج جستجو برای: conception rate and reproductive disorders (dystocia

تعداد نتایج: 16934078  

Journal: :علوم دامی ایران 0
علی جبار زارع دانشجوی کارشناسی ارشد، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان علی صادقی سفیدمزگی استادیار گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان غلامرضا قربانی استاد گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان

the objective of this study was to explore the reproductive consequences of using sex-sorted semen on sex ratio, conception rate and reproductive disorders (dystocia, abortion, stillbirth) in holstein heifers. reproduction performances records which were collected during 2006 to 2013 from 4 large dairy herds in isfahan province of iran were used and analyzed by genmod procedure of sas software....

2013
L. Ramsingh

Pyometra, transmissible venereal tumor and dystocia had maximum prevalence out of various reproductive disorders in canines. Survival rate 62% of dystocia affected female canines following the treatment of dystocia is usually not satisfactory.

Journal: :Journal of animal science 1990
T E Wittum C R Curtis M D Salman M E King K G Odde R G Mortimer

An observational study was conducted to quantify the effects of management practices on reproductive performance and disorders of beef cows. The study population consisted of 44 randomly selected Colorado cow-calf herds monitored for disease and reproductive events as part of the National Animal Health Monitoring System. The managers of the herds were surveyed with a standardized questionnaire ...

Journal: :Animal reproduction science 2000
Y T Gröhn P J Rajala-Schultz

The objectives of this presentation are to review results of our previous and on-going research with respect to the risk factors and consequences of poor reproductive performance in dairy cows, and to develop an economic framework to optimize decisions related to dairy cow reproductive performance. To make profitable breeding and replacement decisions, the farmer must account for factors includ...

Journal: :IOSR Journal of Pharmacy (IOSRPHR) 2013

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 ...

Journal: :international journal of advanced biological and biomedical research 2013
nematollah dayyani keyvan karkudi hasan bakhtiari

the reproductive performance of a dairy herd has a significant effect on the profitability of that herd. common measures of reproductive performance are days to first service, days to conception, calving interval, services per conception, conception rate, estrus detection rate, and pregnancy rate. most cow operations would benefit economically by reducing the number of operational days, decreas...

2017
Navjot Singh Harbir Singh

The present study was conducted with an aim to access the incidence of peri-parturient reproductive disorders and to determine the seasonal calving pattern in cross bred cows of Jammu region. A total of 2638 calving records of cross bred dairy cows between 2010 – 2016 were screened retrospectively for peri-parturient reproductive disorders. The most common reproductive problems recorded in the ...

Hasan Bakhtiari Keyvan Karkudi Nematollah Dayyani,

The reproductive performance of a dairy herd has a significant effect on the profitability of that herd. Common measures of reproductive performance are days to first service, days to conception, calving interval, services per conception, conception rate, estrus detection rate, and pregnancy rate. Most cow operations would benefit economically by reducing the number of operational days, decreas...

Hasan Bakhtiari Keyvan Karkudi Nematollah Dayyani,

The reproductive performance of a dairy herd has a significant effect on the profitability of that herd. Common measures of reproductive performance are days to first service, days to conception, calving interval, services per conception, conception rate, estrus detection rate, and pregnancy rate. Most cow operations would benefit economically by reducing the number of operational days, decreas...

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