بررسي كشتارگاهي وجود اجسام خارجي در گوسفند

Abattoir survey of foreign bodies in sheep

The objective of this cross-sectional survey was to determine the prevalence rate of foreign bodies in fore stomachs of sheep regarding of kind, number, position and penetration of them. By systematic random sampling 435 slaughtered sheep have selected from slaughter houses of Torbat-e-Heydarieh. The sex and age of the sheep according to dental formula was recorded. Adhesion between reticulum and other organs, pregnancy condition, rumen and reticulum foreign bodies, kind and number of foreign bodies and penetration position were recorded. The results were analyzed statistically by chi-square and one-way ANOVA tests. Statistical analysis showed that 51.3% of animals have no foreign bodies, 44.4% have non metallic and 0.9% have metallic foreign bodies. 3.4% have even both metallic and non metallic foreign bodies (92%). There was no significant association between numbers of foreign bodies with age (p=0.6464), sex (p=0.7325) and pregnancy condition (p=0.7325). It was conducted that pastures are the main source of sheep’s food in Torbat-e-Heydarieh and also other sites of Iran. High prevalence of foreign bodies in fore stomachs of sheep (48.7%7) is a result of the drought in several years ago that led to starvation and pica and subsequently foreign bodies ingestion.