مرکز منطقه ای اطلاع رساني علوم و فناوري - مورفومتري و بافت شناسي پستان گاوميش بالغ آذربايجان در دوره هاي شيرده و غير شيرده

چكيده لاتين :

For the morphometric and histologic investigations of mammary gland of the Azarbayjanian buffalo, 80 specimens were collected from healthy lactating and non-lactating buffaloes which were slaughtered in Urmieh abattoir. In this study 50 specimens (25 lactating & 25 non- lactating were selected for morphometric and 30 specimens (15 lactating & 15 non-lactating) for histological studies.The mean lengths of teats of anterior quarters in lactating and non- lactating buffaloes were 4.54±0.10cm and 3.60±0.18cm, respectively. The mean teat lengths of caudal quarters in lactating and non-lactating glands were 4.56±0.10cm and 3.70±0.11 cm, respectively. The mean teat diameter in anterior quarters of lactating and non-lactating glands were 2.60±0.09cm and 2.40±0.09cm, respectively, whereas the same variable in the caudal quarter of lactating and non-lactating glands were 2.60±0.04cm and 2.5±0.06cm respectively. The mean thickness of anterior quarters in lactating and non-lactating glands were 3.70±0.04cm and 2.4±0.12cm, respectively, whereas the same variable in the caudal quarters of the lactating and non-lactating glands were 9.00±0.20cm and 4.40±.16cm, respectively. The mean length of lactating and non-lactating glands were 34.6±.27cm and 28.43±.87cm, respectively. The mean width of lactating and non-lactating glands were 38.00±0.67crn and 25.90±0.99cm, respectively. According to the statistical analysis there were significant (p<0.05) differences among lactating and non-lactating glands for all variables except diameters of the teats. The histological study revealed that, the amounts of interlobular connective and adipose tissues increase from dorsal to ventral side of udders, whereas, the volume of parenchyma tissue decrease from dorsal to the ventral side. The muscles on the teat wall were composed of obliquely and longitudinally arranged bands. Long ridges of the skin epithelium were deeply penetrated into the lamina propriae of teats. In the base of the teat, there were thick walled arteries i.e. muscular type, along with small arteries and plenty of arterioles, venules, and capillaries near to the lactiferous sinuses. In the same level, hair follicles, sebaceous glands and the apocrine type of sweat glands were seen in the skin of the teats, but such structures were not seen in the lower two third of the teat structure.