Table 1. Body performance and production parameters at protocol initiation, ovulation intervals, ovulation rate, estrus intensity score, and pregnancy per artificial insemination (P/AI).
| Characteristics | GnRH-TAI-84 (n = 29) |
TAI-84 (n = 29) |
SEM | P-value | |
|---|---|---|---|---|---|
| Body performance and production parameters | |||||
| Body weight (Kg) | 544.2 | 543.9 | 1.5 | 0.88 | |
| BCS (1–5) | 3.56 | 3.49 | 0.03 | 0.10 | |
| Age (years) | 6.53 | 6.68 | 0.17 | 0.83 | |
| DIM (days) | 103.5 | 103.7 | 1.64 | 0.94 | |
| Parity (n) | 2.51 | 2.62 | 0.17 | 0.68 | |
| Reproductive parameters | |||||
| Interval from PGF2α2/MAP 1 sponge removal to ovulation (h) | 98.06 | 109 | 0.63 | 0.01 | |
| Interval from TAI to ovulation (h) | 14.06 | 25 | 0.63 | 0.01 | |
| Progesterone at TAI (ng/ml) | 0.31 | 0.33 | 0.01 | 0.46 | |
| Ovulation 3; (%) n/n | 29/29 (100) | 25/29 (86) | 6.0 | 0.97 | |
| Estrus intensity score 4 | 3.82 | 3.68 | 0.14 | 0.51 | |
| P/AI 5; (%) n/n | 18/29 (62) | 5/29 (17) | 9.0 | 0.002 | |
Values shows as the least square means and associated standard error of means. 1 MAP medroxyprogesterone acetate (250 mg); 2 PGF2α, Prostaglandin F2α. 3 Total ovulation represents the number of animals ovulated divided by the total number of buffalo treated × 100. 4 Estrus intensity Score: 1 = poor sign, 2 = satisfactory sign, 3 = good sign, 4 = Very Good sign, 5 = excellent sign. 5 Pregnancy per AI; P/AI = [(number of pregnant buffaloes divided by the number of treated buffaloes) × 100].