Comparison of Different Extenders on the Preservability of Rabbit Semen Stored at 5°C for 72 Hours

Figures & data

Figure 1. Effect of different extenders on total motility of rabbit semen (mean percent-ages±SEM; n=8) after 4, 24, 48 and 72 h of storage at 5°C. ^a-dDifferent superscript letters on error bars within the same time of storage indicate significant differences (P<0.05).

Figure 2. Effect of different extenders on forward progressive motility of rabbit semen (mean percentages±SEM; n=8) after 4, 24, 48 and 72 h of storage at 5°C. ^a-cDifferent superscript letters on error bars within the same time of storage indicate significant differences (P<0.05).

Figure 3. Effect of different extenders on viability of rabbit semen (mean percentages±SEM; n=8) after 4, 24, 48 and 72 h of storage at 5°C. ^a-dDifferent superscript letters on error bars within the same time of storage indicate significant differences (P<0.05).

Figure 4. Effect of different extenders on acrosome integrity of rabbit semen (mean percentages±SEM; n=8) after 4, 24, 48 and 72 h of storage at 5°C. ^a-dDifferent superscript letters on error bars within the same time of storage indicate significant differences (P<0.05).

Figure 5. Effect of different extenders on membrane integrity of rabbit semen (mean percentages±SEM; n=8) after 4, 24, 48 and 72 h of storage at 5°C. ^a-dDifferent superscript letters on error bars within the same time of storage indicate significant differences (P<0.05).

Table 1. Sperm qualitative parameters of freshly collected rabbit semen (n=8).

Total sperm motility,%	Progressive motility,%	Viability,%	Osmotic resistance,%	Acrosome integrity,%	Sperm concentration, 10^6/mL
88.31±0.84	76.00±0.98	84.97±1.22	77.96±0.87	86.56±0.5	645±32

Table 2. Reproductive performance of rabbit does after artificial insemination with fresh semen or semen chilled in Cortalap^®.

Reproductive performance	Treatment
	Fresh semen	Chilled semen
Fertility, % (n)	93.3^a (28)	20^b (6)
Kindling, % (n)	86.7^a (26)	20^b (6)
Total born, mean±SEM	10.1±0.5^a	2.2±0.3^b
Live born, mean±SEM	9±0.6a	1.8±0.5^b

Values with different superscript letters within treatments in the same row are significantly different (P<0.05).