Izvorni znanstveni članak
EFFECT OF ONE INJECTION OF PROSTAGLANDIN F₂alfa ON INDUCTION AND SYNCHRONIZATION OF HEAT IN DAIRY COWS AND PREGNANCY RATE
Damir Rudan
; Centar za reprodukciju u stočarstvu Hrvatske, Republika Hrvatska
Dubravko Viduč
; Centar za reprodukciju u stočarstvu Hrvatske, Republika Hrvatska
Miroslav Herak
; Veterinarski fakultet, Zagreb, Republika Hrvatska
Z. Tuček
; Farma muznih krava "Zdenka", Veliki Zdenci, Republika Hrvatska
Sažetak
The effect of one treatment with Prostaglandin F₂alfa analog (Gonid-PLIVA, and Cloprosin-G, KRKA) was investigated on a farm of dairy cows. In the experiment 66 cows and 39 heifers mine the presence of a corpus luteum, and than all cows and heifers with C. L. were treated with one of the sinthetic analogs of PGF₂alfa intramuscularly. Both groups of animals were treated with the same amount of the same analog of PGF₂alfa (Gonid of Cloprosin). The dose of Gonid was 500 microg of cloprostenol, and that of Cloprosin was 800 micro g of sintetic analog of PGF₂alfa. The volume of the dosse was 2 ml. The results of estrus induction were very good because the sings of heat were registered in 59 (89,39%) cows and 36 (92,30%) heifers. The time from the aplication of PGF₂alfa analog to the start of the sings of heat was on average in cows 2,4 days, and in heifers 2,5 days. Insemination was performed in 53 cows and 34 heifers. Only six cows and 2 heifers were not inseminated because there were no signs of estrus. After the first insemination 21 cows were pregnant (39,62%) and 20 heffers (58,82%)
Ključne riječi
Hrčak ID:
162573
URI
Datum izdavanja:
20.5.1993.
Posjeta: 1.464 *