Influence of calcitonin administration on ultimobranchial and parathyroid glands of pigeon, Columba livia

Microscopy Research and Technique
Seema Yadav, Ajai Kumar Srivastav

Abstract

Pigeons were divided into two numerically equal groups (A and B) containing 30 specimens each. Birds from group A were intraperitoneally injected daily with 0.1 mL/100 g body wt of vehicle (0.1 M acetate buffer, pH 4.3 containing 0.1% gelatin). Specimens from group B were intraperitoneally injected daily with 1 microg/100 g body wt of salmon calcitonin. Six birds were sacrificed from each group 2 h after the last injection on 1st, 3rd, 5th, 10th, and 15th day of the experiment. After collection of blood samples, ultimobranchial and parathyroid glands were fixed for histological studies. In calcitonin-treated C. livia, the plasma calcium levels exhibit a progressive decline from day 1 till day 5. On day 15, the levels become more or less similar to the control value. No change has been noticed on day 1 in the plasma phosphate levels of calcitonin-treated C. livia. The levels decrease progressively from day 3 to day 5; thereafter, it exhibits an elevation so that on day 15, normal plasma phosphate levels is achieved. The ultimobranchial gland of C. livia exhibits no change up to day 5 following calcitonin treatment. The nuclear volume of ultimobranchial cells exhibits a decrease on day 10. This response progresses up to day 15. F...Continue Reading

References

Mar 1, 1975·General and Comparative Endocrinology·A NietoJ L R-Candela
Jan 1, 1969·Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Métabolisme·R ZieglerE F Pfeiffer
Sep 1, 1970·The Journal of Endocrinology·J K Candlish, T G Taylor
Jul 1, 1970·Poultry Science·J W LloydW E Collins
Mar 1, 1969·Canadian Journal of Physiology and Pharmacology·L Kraintz, K Intscher
Jan 1, 2008·The Veterinary Clinics of North America. Exotic Animal Practice·Ricardo de Matos
Sep 4, 2008·Microscopy Research and Technique·Seema Yadav, Ajai K Srivastav

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