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Quantifying Al Impact: Non-Return Rate Analysis of cows in Thakurgaon, Bangladesh

Quantifying Al Impact: Non-Return Rate Analysis of cows in Thakurgaon, Bangladesh

Md. Zahid Hossain1, Md. Mahfuzul Haque2, Md. Masud Parvej3, Hemayet Hossain3, Faija Sadia  Pory4, Dipsana K.C.5 and Md. Imranuzzaman5*

1Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh; 2Department of Surgery and Theriogenology, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh; 3Department of Anatomy and Histology, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh; 4Department of Poultry Science, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh; 5Department of Agriculture and Environmental Sciences, Lincoln University, MO 65101, USA.

 
*Correspondence | Md. Imranuzzaman, Department of Agriculture and Environmental Sciences, Lincoln University, MO 65101, USA; Email: md.imranuzzaman597@my.lincolnu.edu

ABSTRACT

The aim of this study was to determine the variables linked to the non-return rate (NRR) of dairy cows in terms of Artificial Insemination (AI) in Thakurgaon, Bangladesh. The study was carried out at Thakurgaon Sadar Upazilla Veterinary Hospital, Thakurgaon & some artificial insemination points of ACI Animal Health Co. Ltd., Ijab Farms, BRAC Agro LTD., American Dairy Ltd. with the help of their respective AI technicians during 1st July 2021 to 30th June 2022. Data of the 360 cow’s inseminations performed during this period were gathered. Among them 250 cows didn’t show any heat return signs with a success rate of 69.44%. The cows were inseminated between 12-48 hours of onset of heat. Semen from Brac Agro showed statistically significance (p<0.05) difference among the others whereas semen percentages displayed not significant (p<0.05) among three groups. In addition, age of cow and variety of breed are also representing statistically significance (p<0.05) difference among the others as well as interrupted NRR. As the consistent growing livestock economy is grossly dependent on the success rate of AI, the Government should take much more research works to improve the non-return rate. Except for percentages of semen, this experiment concluded that breed variety, cow age, and source of semen all showed significant differences.  Therefore, to improve the conception rate one should consider all factors related to the semen (source and percentage) and cow (age and breed) applying the practices recommended for the cow to conceive.

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Veterinary Sciences: Research and Reviews

June

Vol.10, Iss.1, Pages 1-39

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