Investigation of Effective Factors on Calving Interval of Cows in Faryab Province

  • Saifullah Saadat Department of Livestock, Agriculture Faculty, Faryab University, AFGHANISTAN
Keywords: Cattle, Calving interval, Diseases of the reproductive system and nutrition, Insemination


This research was conducted to investigate the effects of factors (Identification of female cows, timely insemination of identified begging cows, diseases related to the reproductive system and nutrition) on the calving interval of dairy cows in Faryab province. Whereas, the long interval between two deliveries due to the identification of female cows, the increase in the number of inseminations (due to the failure of previous insemination), poor nutritional management and genital infections cause a long interval between calving to retrieval of cows. In that case, it will significantly reduce milk production and livestock income, because calving interval is one of the most important indicators of reproduction and economic characteristics of dairy cows, which is the interval between two calving intervals. Under the best of circumstances, one cow gives birth to only one calf per year. Calves born are important from both the point of view of meat production and replacement of old and low-producing cows. Identifying the effective factors and their effects on the calving interval between dairy cows and preventing the economic losses of dairy farmers due to increasing the calving interval between calves are the general purpose of this research. In this research, Andkhoy, Qurghan and other Faryab districts were randomly selected from three villages in each district and 10 owners from each village, which included three districts, 9 villages and nine livestock, respectively. The results of the present research showed that the interval between calving of dairy cows in the research area was due to the untimely identification of female cows by herders, increasing the number of inseminations due to the failure of previous inseminations of diseases related to the reproductive system and inadequate nutrition. The average time after delivery for the uterus to return to its previous state was 465 days.


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Rasouli, Rebwar (2011). Study of reproductive indices of dairy Cows in East and West Azerbaijan province and its comparison with existing standards. Scientific Journal of the Faculty of Agriculture, University of Tabriz. Pp. 9-12

Ring, Lotfollah (2010). Reproduction and infertility of cows. Food and Agriculture Organization of the United Nations. Kabul, Afghanistan. Pp.43

Sahab, Mohammad Nasim (2015). Comparison of economic characteristics of Holstein cattle breed with its breed and domestic breed in Balkh province. Thesis Master, Kabul University, Pp. 68-72

Zia, Zia ad-Din. (2011). Livestock science. Kabul Nomani Publications. Pp. 184,25,23

Zamiri, Mohammad Javad (2006). Reproductive physiology. Publications: Haghshenas. Pp.150-151

Abbas pour, Yahiya. (2011).Study of reproductive indices in industrial dairy farms in Ilam province. Scientific Journal of Razi University of Isfahan Iran. No. 90 p.9

Naderi, Fahim. (2013). Animal nutrition. Publications: Akbar Printing House (Kabul Pol-e Sokhteh). Pp. 45-48

Hashemi, Massoud (2005). Artificial insemination in cows. Publications: comprehensive culture. P. 263

Howards, d. M. (1373). Fertility and infertility in dairy cows. Publications: University of Mashhad, Iran, p. 137

Yedi, Jafari. Moghaddam, Mehran. Yedi, Mohammad. (1392). Infectious disorders of the female genital tract of cattle. Scientific Journal of Veterinary Medicine, Karaj University of Iran, No. (12), p. 10

Parsley, J. R. Roy, W. S. Wilt bank, M.C. (1998). Effect of Time of Artificial Insemination on Pregnancy Rates, Calving Rates, Pregnancy Loss, and Gender Ratio After Synchronization of Ovulation in Lactating Dairy Cows. University of Wisconsin. Journal of Dairy Science Vol. 81. No. 8.

Pond, G.W. David, C. Church, R.K. (2005). Basic Animal Nutrition and Feeding. 5 Edition. John Wiley and Son Inc, USA.

How to Cite
Saifullah Saadat. (2021). Investigation of Effective Factors on Calving Interval of Cows in Faryab Province. International Journal for Research in Applied Sciences and Biotechnology, 8(2), 63-68.