Table 5. Effect of different types (palm-stearic vs. linseed oil) and amounts (3% and 6%, before and after insemination, respectively) of fat supplemented diet on the ovarian response following estrous synchronization of ewes with vaginal sponge+eCG

Time of experiment Classes of the follicles Experimental groups SE p-value
Control LO SFA
Day −21 (diet challenges) Small (< 3 mm) 1.3 1.4 1.2 0.367 0.76
Medium (3–4 mm) 1.4 1.3 1.5 0.492 0.88
Large > 4 mm 1.8 2.1 2.2 0.523 0.80
Total 4.5 4.8 4.9
Day −14 (vaginal sponge insertion) Small (< 3 mm) 1 0.5 0.3 0.367 0.060
Medium (3–4 mm) 1.3 1.1 1.6 0.492 0.54
Large > 4 mm 2.1 2.1 2.5 0.523 0.82
Total 4.4 3.7 4.4
Day −2 (sponge removal and eCG injection) Small (< 3 mm) 0.9 (2.81) 0.6 (2.60) 1 (2.45) 0.367 0.58
Medium (3–4 mm) 1.9 (3.16) 1.7 (3.18) 1.9 (3.48) 0.492 0.89
Large > 4 mm 2.2 (5.05) 2.0 (4.87) 1.6 (4.92) 0.523 0.25
Total 5.0 4.3 4.5
Day 0 (laparoscopic insemination) Small (< 3 mm) 1.6 1.5 1.8 0.367 0.72
Medium (3–4 mm) 1.9 1.2 1.4 0.492 0.31
Large > 4 mm 2.4 1.7 2.0 0.523 0.18
Total 5.9 4.4 5.2
Day +10 of experiment mean number of corpora lutea 2.5 2.0 2.2 0.613 0.49
LO, linseed oil; SFA, saturated fatty acid; eCG, equine chorionic gonadotropin.