Abstract
Cattle reproduction is most significant production phase because in this phase heads of cattle for maintaining of the herd are provided, as well as for dairy production and fattening - production of meat. The effect of year and season of calving on age at first conception, duration of pregnancy duration of service period, interval between calving, etc. is investigated in the paper. Bull dams of Simmental breed selected on farms of individual agricultural producers were investigated. The method of Least Squares LSMLMW(Harvey 1987) was used for analysis of the effect of year and season of calving on reproductive traits. Year of calving had significant effect on duration of service period and interval between calving (p<0.05), while season influenced significantly only the duration of service period (p<0.05). Mean values of the general average were following: for age at first conception - 517.61 days; duration of pregnancy 285.51 days; duration of service period 108.98 days; duration of interval between calving 395.34 days.
Highlights
QYHVWLJDWLRQ LQFOXGHG FRZV RI 6LPPHQWDO EUHHG VHOHFWHG RQ WKH WHUULWRU\ RI WKH 5HSXEOLF RI 6HUELD WR EH EXOO GDPV LQ \HDU 6HOHFWLRQ RI FRZV IRU KHUG RI EXOO GDPV ZDV FDUULHG RXW VXEVHTXHQW WR ILUVW ODFWDWLRQ WKDW LV EDVHG RQ IROORZLQJ ODFWDWLRQV
EHFDXVH LQ WKLV SKDVH KHDGV RI FDWWOH IRU PDLQWDLQLQJ RI WKH KHUG DUH
SURYLGHG DV ZHOO DV IRU GDLU\ SURGXFWLRQ DQG IDWWHQLQJ ± SURGXFWLRQ RI
Summary
QYHVWLJDWLRQ LQFOXGHG FRZV RI 6LPPHQWDO EUHHG VHOHFWHG RQ WKH WHUULWRU\ RI WKH 5HSXEOLF RI 6HUELD WR EH EXOO GDPV LQ \HDU 6HOHFWLRQ RI FRZV IRU KHUG RI EXOO GDPV ZDV FDUULHG RXW VXEVHTXHQW WR ILUVW ODFWDWLRQ WKDW LV EDVHG RQ IROORZLQJ ODFWDWLRQV EHFDXVH LQ WKLV SKDVH KHDGV RI FDWWOH IRU PDLQWDLQLQJ RI WKH KHUG DUH SURYLGHG DV ZHOO DV IRU GDLU\ SURGXFWLRQ DQG IDWWHQLQJ ± SURGXFWLRQ RI FRQFHSWLRQ GXUDWLRQ RI SUHJQDQF\ GXUDWLRQ RI VHUYLFH SHULRG LQWHUYDO EHWZHHQ FDOYLQJ HWF LV LQYHVWLJDWHG LQ WKH SDSHU %XOO GDPV RI ZDV XVHG IRU DQDO\VLV RI WKH HIIHFW RI \HDU DQG VHDVRQ RI FDOYLQJ RQ
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
