21-Title: Gross morphological observations on prenatal thyroid gland in Surti goat foetuses (Capra hircus)
Authors: R Menaka, S Chaurasia and Gopal Puri
Source: Ruminant Science (2023)-12(2):297-300.

Abstract

How to cite this manuscript: Menaka R, Chaurasia S and Puri Gopal (2023). Gross morphological observations on prenatal thyroid gland in Surti goat foetuses (Capra hircus). Ruminant Science 12(2):297-300.
Abstract
The present study was undertaken to investigate the prenatal development of thyroid glands in Surti goats in different age groups. In prenatal age intervals, the definitive topographic position of the thyroid lobes was apparently visible grossly on either side of the ventrolateral aspect of the trachea. The thyroid lobes were bean to almond-shaped and the intensity of colour differentiation from dark brown to pale brown in all the prenatal age groups. The gross biometrical parameters like length, width, thickness, weight and volume significantly increased with the advancement of fetal growth and individual development as well. The age-related changes in the biometrical values like length, width and weight of the thyroid gland were highly significant at P<0.05. References Aherne WA and Dunnil MS (1982). Morphometry. 1st Edn, Edward Arnold Publishers Ltd. London. Anupriya A and Kalpana R (2016). Morphological and histological features of human fetal thyroid. International Journal of Scientific Study 3(10):136-140. Bhardwaj RL, Rajput R, Patak V and Thakur K (2006). Comparative anatomy of the thyroid gland of small ruminants. Indian Journal of Animal Sciences 76(1):46-47. Capen CC and Martin SL (2003). The thyroid gland. In: McDonald’s Veterinary Endocrinology and Reproduction. 5th Edn, MH Pineda and MP. Dooley, Iowa State Press, Ames, pp 35-69. Devi Jonali, Goswami J, Sarmah BC and Sarma K (2014). Effect of zinc supplementation on thyroid and testosterone hormone in growing kids. Ruminant Science 3(2):217-220. Hajovska K (2002). Prenatal thyroid gland in sheep with regard to the presence of the isthmus. Anatomia Histologia Embryologia 3:300-302. Hamad ESA (2008). Seasonal changes in the morphology and morphometry of the thyroid gland of the Nubian goat. MVSc Thesis submitted to University of Khartoum. Sudan. Igbokwe CO and Ezeasor DN (2014).Histological and immunohistochemical changes of the thyroid gland during the fetal and postnatal period of development in Indigenous large white crossbred pigs.Bulgarian Journal of Veterinary Medicine 18(4):313-324. Igbokwe CO, Machebe NS and Ezeasor DN (2014). Age-related morphological changes in the foetal thyroid gland of white Fulani (zebu) cattle. Indian Journal of Animal Research 48(5):438-443. Joshi Sanjeev and Mathur Rakesh (2015). Gross anatomical studies on the thyroid gland of goat. Ruminant Science 4(2):153-156. Joshi Sanjeev and Mathur Rakesh (2016). Light microscopic studies on the thyroid gland of goats. Ruminant Science 5(1):25-28. Lyngset O (1971). Studies on reproduction in the goat. VII. Pregnancy and development of the foetus and the foetal accessories of the goat. Acta Veterinaria Scandanavica 12:185-201. Nabi Neelofar, Baba MA, Taziyun, Sarma Kamal and Quadir Ajaz (2017).Studies on seasonal and sexual variation on gross morphology and biometry of the thyroid gland in local sheep (Ovis aries) of Kashmir. Ruminant Science 6(1):39-41. Menaka R, Vyas KN and Chaurasia S (2017). Histochemical studies of thyroid gland in prenatal development of Surti goat foetuses. Ruminant Science 6(2):259-261. Malik MR, Parmar ML and Pillai PVA (1997). Prenatal growth changes of thyroid gland in goats.Indian Journal of Animal Sciences 67(9):774-776. Prasad R (1983). Morphogenesis of the thyroid gland in goat. PhD Thesis submitted to CCSHAU, Hisar, Haryana. Sarma Kamal, Kalita SN and Devi J (2016). Gross and biometrical study on postnatal development of thyroid gland in Assam goat (Capra hircus). Ruminant Science 5(1):29-32. 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. Singh Devendra and Joshi Sanjeev (2021a). Gross and topographical studies on the thyroid gland of dromedary camel (Camelus dromedarius). Ruminant Science 10(1):161-164. Singh Devendra and Joshi Sanjeev (2021b). Histomorphological studies on the thyroid gland of dromedary camel (Camelus dromedarius). Ruminant Science 10(2):293-302.