2-Title: Gross morphological studies on hypothalamo-hypophyseal-ovarian axis of Indian buffalo
Authors: Devendra Pathak and Neelam Bansal
Source: Ruminant Science (2015)-4(2):137-143.
How to cite this manuscript: Pathak Devendra and Bansal Neelam (2015). Gross morphological studies on hypothalamo-hypophyseal-ovarian axis of Indian buffalo. Ruminant Science 4(2):137-143.
The present study was conducted to study the gross morphological and biometrical aspects of the hypothalamo-hypophyseal-ovarian axis in Indian buffalo. The head for hypothalamus and hypophysis cerebri and ovary of 48 numbers of buffaloes were utilized for the gross anatomical studies. The tissue samples were classified into four groups viz. prepubertal, follicular, luteal phase and pregnant. The hypothalamus of buffalo was located ventral to the thalamus and extended from optic chiasma to the mammillary body and formed the walls and the lower part of the third ventricle. The pituitary stalk connected the ventral surface of the hypothalamus. The length of hypothalamus during prepubertal period was significantly lower than pubertal period; however the length did not vary significantly during different phases of pubertal period. The hypophysis cerebri was located in an oblique manner. The gland was composed of three visibly distinct areas viz. adenohypophysis, neurohypophysis and pars intermedia. The infundibulum formed a swollen structure, median eminence through which it joined the hypothalamus. The weight of the pituitary gland during prepubertal period was significantly lower than during different pubertal period while it did not vary significantly during different phases of pubertal period. The weight of the ovary varied greatly during different phase of cycle. The gross morphological and biometrical parameters of components of hypothalamo-hypophyseal-ovarian axis of Indian buffaloes were established.
Akhtar N, Nabi G, Lodhi LA, Ali S, Ahmed N, Rahman SU and Akhtar M (2012). Histological studies of the buffalo adenohypophysis with reference to phases of estrus cycle. Journal of Animal and Plant Sciences 22(3 Suppl):181-188.
Bansal N, Jindal R, Nayyar S and Malik VS (2004). Ovarian morphology and plasma hormonal concentration during different phases of reproductive cycle in buffaloes (Bubalus bubalis). Indian Journal of Animal Science 74 (12):1192-93.
Bleier R, Cohn P and Siggelkow IR (1979). A cytoarchitectonic atlas of the hypothalamus and hypothalamic third ventricle of the rat. In: Hand Book of the Hypothalamus. Vol I Anatomy of the Hypothalamus. Eds: PJ Morgane, Marcel Dekker Inc, New York. pp 137-220.
Fink G, Peafd D and Levine J (2012). Handbook of Neuroendocrinology. Elsevier publishers Amsterdam.
Gharib SD, Wierman ME, Shupnik MA and Chin WW (1990). Molecular biology of the pituitary gonadotropins. Endocrinology Review 11:177-99.
Hasanzadeh S and Sadeghinezad J (2012). Histomorphometry of ovarian follicular growth and atresia in summer and winter seasons in Iranian river buffaloes. Indian Journal of Animal Science 82(5):472-476.
Jaji AZ, Boyi N, Gambo B, Mahre MB, Luka J and Kachamai WA (2012). Pregnancy related biometrical changes in the ovaries and uterus of the Red Bororo Cattle in Maiduguri, Nigeria. Nigerian Veterinary Journal 33(3):592-599.
Jaspal SAS, Rahman ZU and Cheema AM (2011). Gross morphology and adenohypophyseal cells in camel (Camelus dromedaries) using a new combination of stains. Pakistan Veterinary Journal 31(1):50-54.
Konig HE and Liebich HG (2014). Veterinary Anatomy of Domestic Mammals: Text Book and Colour Atlas. 6th Edn, Scattauer publisher, New York.
Muhammad G and Khan MZ (1984). Studies on the anatomy, histology and biometry of the pituitary gland (adenohypophysis) of buffaloes. Pakistan Veterinary Jourrnal 2:113-17.
Paramsivan S (2007). Gross anatomical and histomorphological studies on hypothalamo-hypophysio-mammary axis of sheep (Ovis aries)’. PhD Thesis submitted to TNVASU, Chennai.
Pathak V and Bhardwaj RL (2004). Seasonal variation in the gross and biometrical parameters of hypophysis cerebri in Gaddi doe. Indian Journal of Veterinary Anatomy 15(1-2):77-79.
Pathak V (2001). Correlative anatomical studies on the hypothalamo-hypophysio-gonadal axis of gaddi doe. MVSc Thesis submitted to CSK HPKV, Palampur.
Rakesh HB, Singh SK, Sharma GC, Jessiehun N and Agarwal SK (2013). Morphological and functional characeterization of corpus luteum during different stages of estrous cycle in buffalo. Indian Journal of Animal Science 83(7):710-712.