|
[9000480.] رقم البحث : 9000480 - |
|
Nutritional and Physiological Studies on The Metabolism of Ram and Goat Spermatozoa : / I. Metabolism of Ram Spermatozoa. |
| تخصص البحث : |
| |
Agricultural Research Journal Suez Canal University / / Volume 10, No. 2 - 2010 |
| |
lism, Ram, Semen, Conception, Fructolysis. |
| |
: Six Rahmani rams and 26 mature ewes were used in this work kept at Suez Canal University Experimental Farm. The Rahmani rams aged 12 months at the beginning with an average live body weight 45.00 ±1.80 kg. The six rams were divided into two equal groups (A and B). Group A was fed concentrate mixture ad lib while group B received only 80 % of the ad lib concentrate mixture. The roughage, ammoniated rice straw (3 %) was fed ad lib for the two groups during experimental period. Two successive semen ejaculates were collected weekly from the rams of the two groups and evaluated, after a period of ten weeks has elapsed in training for semen collection from these rams. Semen evaluation included the physical characteristics and the two indices of sperm metabolism which were methylene blue reduction time (MBRT) test and fructolysis index. The results of this experiment showed that semen ejaculates collected from rams of group A had slightly better physical characteristics than those of group B. MBRT showed the same trend. It was 74.39±2.69 sec., for group A and 80.72±3.12 sec. for group B. Fructolysis index after 60 min. of semen collection was 1.61±0.12 / 109 motile sperm for group A and 1.42±0.11 /109 motile sperm for group B. while it was after 60 minutes of frozen and thawing 1.91±0.14 for group A and 1.93±0.27 / 109 motile sperm for group B. Conception rate of ewes which were inseminated with frozen thawed semen of group A was 57.14 % (8/14) and was 50% (6/12) in ewes that inseminated with frozen thawed semen of group B. The difference between the two groups was insignificant. It could be concluded that restriction of feeding rams 20% of ad lib of the concentrate mixture had not affected the rate of the metabolism of the spermatozoa of group B. |
| |
 Download Paper |
تسجيل دخول 
