Efek Pemberian Prostaglandin F2α, secara Intra Vaginal Spons (IVS) dan Intra Muskuler (IM) terhadap Peningkatan Kinerja Reproduksi Domba
Abstract
The purpose of the experiment was to investigate the effect of different administration method of PGF2α,
i.e. intra vaginal sponges (IVS) and intra muscular (IM) on the onset and the duration of estrus, and Non-return Rate (NR)
in thin tailed ewe lambs. A total of 20 thin tailed ewe lambs, aged 12-15 months, were at random assigned to one of four
treatment groups in Completely Randomized Designed (CRD) : Animals in Treatment group I (P1) received PGF2α of 5
mg/ml/head intramuscularly; Treatment group II (P2) received PGF2α of 5 mg/ml/head by intra vaginal sponges for
twodays; Treatment group III (P3) received PGF2α of 5 mg/ml/head by intra vaginal sponges for four days; Treatment
group IV (P4) received PGF2α of 5 mg/ml/head by intra vaginal sponges for six days. Two rams, aged 2-2.5 years used as
a mated. Each treatment was repeated five times. Variables measured were onset and duration of estrus, and Non-return
Rate (NR) in 30 days. Collected data were analyzed using analysis of variance followed by Post-hoc of Least Significant
Difference (LSD). Average values of onset of estrus for P1, P2, P3 and P4 were 22.91, 23.16, 26.31 and 44.57 hours,
respectively. Average values of duration of estrus for P1, P2, P3 and P4 were 26.36, 48.36, 94.65 and 146.56 hours,
respectively. Analysis of variance indicated that the administration method of PGF2α affected significantly (P
i.e. intra vaginal sponges (IVS) and intra muscular (IM) on the onset and the duration of estrus, and Non-return Rate (NR)
in thin tailed ewe lambs. A total of 20 thin tailed ewe lambs, aged 12-15 months, were at random assigned to one of four
treatment groups in Completely Randomized Designed (CRD) : Animals in Treatment group I (P1) received PGF2α of 5
mg/ml/head intramuscularly; Treatment group II (P2) received PGF2α of 5 mg/ml/head by intra vaginal sponges for
twodays; Treatment group III (P3) received PGF2α of 5 mg/ml/head by intra vaginal sponges for four days; Treatment
group IV (P4) received PGF2α of 5 mg/ml/head by intra vaginal sponges for six days. Two rams, aged 2-2.5 years used as
a mated. Each treatment was repeated five times. Variables measured were onset and duration of estrus, and Non-return
Rate (NR) in 30 days. Collected data were analyzed using analysis of variance followed by Post-hoc of Least Significant
Difference (LSD). Average values of onset of estrus for P1, P2, P3 and P4 were 22.91, 23.16, 26.31 and 44.57 hours,
respectively. Average values of duration of estrus for P1, P2, P3 and P4 were 26.36, 48.36, 94.65 and 146.56 hours,
respectively. Analysis of variance indicated that the administration method of PGF2α affected significantly (P
Keywords
Prostaglandin, estrous, non-return rate, sheep