استخدام منظار البطن الجراحى لفحص وتقييم تأثير كل من هرمون النمو وصابونيات الأحماض الدهنية للكالسيوم على نشاط المبايض أثناء دورة الشبق فى النعاج .

Abstract: Abstract
Recently, using the laparoscope for examination of the ovarian activity is considered the most effective tool to detect accurate ovarian changes. The effect of protected fat (PF) and recombinant bovine growth hormone (rbGH) on ovarian activity and its related metabolic changes was investigated in this study. Fifteen crossbred (Barki + Rahmani) ewes were synchronized and randomly allocated into three groups of 5 ewes each; the first group kept as a control and received the basal diet while the animals in the second and the third groups received the basal diet supplemented with 50 gm /head /day of PF or injected subcutaneously with 5 mg /day of rbGH, respectively. The treatments were initiated at day zero of the first detected estrus until the second detected cycle. Blood samples were collected on the 9th, 12th, 14th and 16th days of the first detected estrus and on the 6th and the 9th days of the second one. Laparoscopic ovarian examination at the zero day of the second estrus revealed that ovaries of PF and rbGH treated ewes had a multiple large mature Graafian follicles with many medium size follicles while the ovaries of the control ewes had a few small follicular structures with one or two mature Graafian follicles. Laparoscopic counting of corpora lutea at day 7 of the same cycle indicated that PF and rbGH treated ewes had a significant higher rate of ovulation than that of the control one which reflect a higher number of corpora lutea. The results revealed that there was a significant increase in serum glucose, cholesterol, triglycerides insulin, leptin and progesterone levels in the two treated groups. In conclusion, supplemented PF and injection of rbGH to ewes had a beneficial effect on general metabolic profile in cycling ewes leading to a significant increase in the number and size of ovarian preovulatory follicles and a significant higher ovulation rate of the second cycle.
Publication year 2010
Pages 307-323
Organization Name
Author(s) from ARC
Agris Categories Animal physiology - Reproduction
Publication Type Researsh & Applied Activities
↑