STUDIES ON METABOLIC GROWTH INDICATORS DURING DIFFERENT STAGES OF GROWTH IN BANNUR FEMALE SHEEP
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Date
2018-09
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR-585401
Abstract
The present study was conducted to ascertain the metabolic growth indicators
during different stages of growth in Bannur female sheep maintained at Bandur Breeding
Farm, Danagur Village, Malavalli Taluk, Mandya District. Twenty four female sheep
divided into four groups with six animals in each group such as Group I (>3 to 5 months),
Group II (>5 to 7 months), Group III (>7 to 9 months) and Group IV (>9 to 11 months)
were utilized in the present study. The blood samples were collected from jugular vein at
fortnightly intervals for two months (15th, 30th, 45th and 60th day). Each time about 5 to 8
ml of blood was collected in clot activated vacutainer. A drop of blood during collection
was immediately utilized for estimation of blood glucose and β- hydroxybutyrate (BHB).
Serum samples were immediately utilized for determination of alkaline phosphatase
(ALP) and creatine kinase (CK) activity. In the present study it was found that the blood
glucose, serum total protein, serum total cholesterol, leptin, insulin, estradiol, T3 and
potassium levels were increased significantly in advance stages compared to early stage
of growth. However, the BHB levels were constant in different age groups. T4 levels
increased in advance growth period, calcium and phosphorus levels did not differ with
respect to age. Growth hormone increased in the early stage, but ALP and CK activity
reduced as the age advanced. Body weight increased from beginning to the completion of
the study. It was concluded that the levels of blood glucose, BHB, leptin, insulin, GH,
potassium, ALP, CK and body weight gain could be used as physiological indicators of
growth in Bannur female sheep to ascertain growth and the same can be extrapolated to
other breeds of sheep.
Key words: Metabolic growth indicators,