Developmental study of rectum in broiler chicken: A stereological and morphometrical study

سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 34

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شناسه ملی سند علمی:

JR_VRFAN-7-1_007

تاریخ نمایه سازی: 25 آبان 1402

چکیده مقاله:

The objective of this study was to investigate development of the weight and the morphological development of the rectum in broiler chickens. Twenty broiler chickens (Ross ۳۰۸) were used in this experiment and they were ۱۲, ۲۰, ۳۵ and ۴۴ days of age. Samples from the rectum of chicks were sectioned in an unbiased manner and examined quantitatively using stereology. In addition, the weight of both body (BW) and rectum and also rectum weight as a proportion of BW, height and width of the villi and thickness of rectum wall were measured. The results revealed that the body and rectum weight were increased with age. The greatest rectum weight as a proportion of BW was observed on day ۲۰. An increase in height and width of the villi during the study period were obtained. The increase was more significant on days ۳۵ and ۴۴ than on days ۱۲ and ۲۰ (p < ۰.۰۵). There were significant difference in thickness of tunica mucosa, submucosa and muscular layer of the rectum on day ۲۰ compared to day ۳۵ (p < ۰.۰۵). The increase in the volume density of the wall, tunica mucosa and tunica muscular was greater on day ۲۰ than on day ۳۵. However, significant differences were observed in volume density of this layers between days ۳۵ and ۴۴ compared to days ۱۲ and ۲۰ (p < ۰.۰۵).

نویسندگان

Rahmat-Allah Fatahian Dehkordi

Department of Basic Sciences, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran

Poria Ghahremani

DVM Student, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran

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