Studies on biochemical, hormonal and morphological interrelationship of testis, epididymis and thyroid gland from birth to 10 months of age in Assam goats

Title: Studies on biochemical, hormonal and morphological interrelationship of testis, epididymis and thyroid gland from birth to 10 months of age in Assam goats

Authors: Kamal Sarma, SN Kalita and J Devi

Source: Ruminant Science (2019)-8(1):81-84

Cite this reference as: Sarma Kamal, Kalita SN and Devi J (2019). Studies on biochemical, hormonal and morphological interrelationship of testis, epididymis and thyroid gland from birth to 10 months of age in Assam goats. Ruminant Science 8(1):81-84.

Abstract

The present study showed a highly significant (P<0.01) positive correlation persisted between the thyroid gland and the testis in respect of their biometrical and micrometrical parameters in male Assam goats at different ages of postnatal life. The weight of the thyroid gland also showed a highly significant (P<0.01) positive correlation with weight of caput, corpus and cauda epididymides of the male goats at their various ages. Mean serum concentrations of Triiodothyronine (T3) and Thyroxine (T4) was found to possess a highly significant (P<0.01) positive correlation with diameter of the seminiferous tubules, height of seminiferous tubular epithelium and weight of testis. Again, the thyroid hormones had a negative correlation with the height of tubular epithelium of all the three segments of the epididymis. The increase in diameter of the seminiferous tubules was attributed by increased number of Leydig cells in the testis. The serum concentrations of testosterone hormone were found to have a positive correlation with various micrometrical parameters of the testicular tissue. Again, the serum levels of testosterone hormone showed highly significant (P<0.01) negative correlation with the concentration of serum cholesterol.

References

Baishya G, Ahme S and Bhattacharya M (1986). A correlative study on biometry and histomorphometry of male gonad and thyroid gland (0-90 days) in Assam goat (Capra hircus). Indian Veterinary Journal 63:928-932.

Franca LR and Godinho C L (2002). Testis morphology, seminiferous epithelium cycle length and daily sperm production in domestic cat (Felis catus). Biology of Reproduction 68:1554-1561.

Franca LR, Silva Jr VA, Garcia HC, Garcia SK and Debeljick L (2000). Cell proliferation and hormonal changes during postnatal development of the testis in the pig. Biology of Reproduction 63:1629-1636.

Handagama SM, Ariyanta BS, Manem TV and Haupt RL (1988). Differentiation of adult Leydig cells in neonatal rat testis is arrested by hypothyroidism. Biology of Reproduction 59:351-357.

Lal P (988). Role of thyroid in sexual and body weight cycles of the migratory redheaded bunting (Emberiza breeniceps). Journal of Comparative Endocrinology 70:291-300.

Luna LG (1968). Manual of Histological Staining Methods of Armed Forces Institute of Pathology. 3rd Edn, McGraw Hill Book Co, New York 153-173.

Parkinson TJ, Douthwaite JA and Follet BK (1995). Responses of prepubertal and mature rams to thyroidectomy. Journal of Reproduction and Fertility 104:51-56.

Sergeev NI and Zaboloskii VA (1976). Age changes in the development of the rete testis in rams. Doklady Vsesoyuznoi Akademii Sel’skokhozyaistvennykh Nauk 12:26-28.

Veerabramhaiah K, Sreeraman PK and Naidu KS (1999). Comparative post natal histological changes of the epididymis in indigenous and crossbred pigs. Indian Veterinary Journal 76:321-325.

Wing TY and Chrstensen K (1982). Morphometric studies on rat seminiferous tubules. American Journal of Anatomy 165:13-25.

Wrobel KH, Dostal S and Schimmel M (1988). Postnatal development of the tubular lamina propria and the intertubular tissue in the bovine testis. Cell and Tissue Research 252:639-653.