NEGATIVE EFFECTS OF BEDDING AND LYING AREA ON SYNCHRONIZED ARTIFICIAL INSEMINATION IN DAIRY CAWS IN SARAJEVO KANTON

Dairy cattle breeding is one of the most important branches livestock production, which has been facing, for several decades, chronic problem declining reproductive performance. In 2005, number worldwide was about 1,370,000,000, while in 2015 that dropped below billion, and 2021 it shows a slight recovery as 1,000,970. This indicates importance applying different protocols order to increase cows production. The type bedding on animals stay, well characteristics lying area itself, significant impact numerous physiological functions such food intake, chewing, milk yield, but also levels sex hormones. area, causes pain stress, leads disorders processes, since stress direct negative cellular functions. A total 66 dairy cows, 50 Holstein-Friesian kept PD Butmir 16 Simmental private mini farm, were included study. At Butmir, tie-stall housing system, mini-farm they free. Hormonal estrus ovulation synchronization used April, May June 2019. Cows subjected two protocols, Ovsynch Cosynch72. 25 Cosynch72 respectively. only protocol applied. applied had success conception rate 12% (n = 3), gave score 36% 9). On mini-farm, resulted 25% 4). Based our results, protocol, compared better choice case system. free stall proved be achieving conception, cows. Therefore, necessary test synchronization, find optimal certain breed, keeping breeding.