BLOOD BIOCHEMICAL AND HORMONAL PROFILES IN RELATION TO DIFFERENT AGE GROUPS IN SURTI BUCKS WITH SEMEN STUDIES
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Date
2008
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Abstract
In the present study on Surti bucks (i) blood biochemical (ii) hormonal (sex steroid) profile and (iii) seminal picture were studied in relation to different age groups. In this study about 21 Surti bucks were taken and divided into 3 groups. Group-I, Group- II & Group-Ill with age of 6-9 months, 9-12 months and above one year respectively and body weight ranging from 8-12 kg, 12-22 kg & 22 kg and above respectively. The levels of sex steroids in Surti bucks of different age were analyzed by employing standard Radioimmunoassay technique. The age related changes of sex steroids (Testosterone and Androstenedione) and specific changes in blood biochemical profiles (Total protein, cholesterol. Alkaline phosphatase and inorganic phosphorous) were estimated at fifteen days interval. The data collected on levels of sex steroids, biochemical estimates and seminal picture were statistically analyzed using standard technique. The Serum levels of testosterone and androstenedione revealed age related changes. The mean testosterone levels at 9-12 months was found to be significantly (P <0.05) lower. The level of testosterone was significantly higher in Surti bucks of one year age and above. A progressive rise in mean testosterone level was observed after one year of age. The levels of androstenedione in blood serum remained a peak at the age of three months and then declined with the advancement of age upto one year. The levels of this hormone were exceptionally higher in adult bucks. The age related sex steroid levels of Surti bucks follow the trends similar to those found on other species of ruminants but the higher levels of androstenedione recorded in adult group of bucks (above one year) was a species specific.
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AGRICULTURE, VETERINARY OBSTETRICS & GYNAECOLOGY, A STUDY