EFFECT OF CALCIUM AND PHOSPHORUS ON BODY-WEIGHT AND ENDOCRINE GLANDS OF BLACK BENGAL GOAT

Growth promoters like calcium and phosphorus independently and in comb ination were administered intramuscularly @ 30 mg/kg body weight to re cord the body-weight gain and histomorphological changes of the endocr ine glands. Significantly higher growth was observed in Ca-P combinati on group compared to all other groups. Treatment of calcium alone caus ed significant body-weight gain as compared to control animals whereas phosphorus alone did not produce significant effect on growth. Activa tion of thyroid follicular cells, increase in size of TSH secreting ce lls and clustering and hypertrophy of STH cells of the pituitary were observed. Small sized internal parathyroid with degenerating chief cel ls, increased number of light cells with lipid vacuoles and fewer numb er of dark chief cells were observed.