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Study on the Practical Applications of Ultrasonography in Dairy Cattle Reproductive Management

Author: WangGang
Tutor: LiuJunPing
School: Inner Mongolia Agricultural University
Course: Veterinary
Keywords: Cow Ovary Uterus Pregnancy B ultrasound
CLC: S823
Type: Master's thesis
Year: 2013
Downloads: 2
Quote: 0
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Abstract


In this study, B ultrasound diagnostic techniques, for the dairy cow’s uterus, ovary follicular and luteum in different developmental stages as well as cows pregnancy different periods carried on ultrasound morphology track.Transrectal ultrasound to make further understand of these diseases, dairy cow reproduction within the visual performance of dairy cow reproduction establishment graphic and diagnostic ultrasound diagnosis based on.Select Into cows three barn, young cattle barn three,for B ultrasound technology practical application, for the dairy barn of different years(2011、2012) compare no using with using the B ultrasound technology after reproduction, respectively, at the33day for the early pregnancy diagnosis, timely processing of open cows reproduction again in the pregnancy to reduce the empty cup feeding costs. And through the B ultrasound technology applications and to collect reproduction rate, conception rate and reproduction rate of inspection data analysis and comparison, in the production practice and achieved good results.results:(1) The mature follicle is about16mm in diameter, the range is11to20mm.(2). the use of ultrasound diagnostic imaging techniques cows by early pregnancy test33to50days is appropriate.(5)B ultrasound identify calf gender of the most easily distinguishable is71to77d.(6)B ultrasound technology applied to different barns into practical which can promote the reproduction rate、the conception rate of the average monthly and the total fertility rate, but less impacts on heifers

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CLC: > Agricultural Sciences > Livestock, animal medicine,hunting,silkworm,bee > Livestock > Cow
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