Comparative Studies Of Digestive Organ And Enginery In Wild Boars And Domestic Pigs

A experiment was conducted to study the difference digestive organ and enginery in wild boars and domestic pigs(Polish Landrace) including apparent digestibilities of dietary nutrients, weight and size of some relevant mostly enteron organs, blood parameter, micro-morphology of stomach small and large intestines, slaughter trial.The result indicated that there were significant difference between the wild boar and Landrace pig in digestion of dietary nutrients, weight and size of some main enteron organs, micro-morphology of stomachy small and large intestines. The digestibilities of crude fibre, crude fat, crude ash (p<0.01 ),energy and N-free extract (p<0.05 )were higher in wild boars than that in Landrace pigs in high fibre dietary. Between two diets for Polish Landrace the digestibilities of dry matter, N-free extract, crude fat, crude fibre and energy were significantly higher for the low fibre diet than the high fibre diet (p<0.01); however, the digestibility of dry matter, N-free extract and energy were significantly different between two diets in wild boar. But the digestibility of crude protein was higher in Landrace pigs than that of wild boars. The relative weights of small intestines, the relative length of large intestines (p<0.01), the relative length of. small intestines of wild boars were significantly higher than that of Landrace pigs (p<0.05). There were no significant differences in the relative weight of stomach, large intestines, liver and pancreas between the wild boar and Landrace pig. The relative weight of leaf fat and attar, and the relative weight of kidney were significantly higher in wild boars than in Landrace pigs (p<0.05); However the relative weight of spleen were significantly lower in wild boars than in Landrace pigs; There were no significantly differences in the relative weight of heart, lung+trachea between wild boars and Landrace pigs. There were no significant differences in the weight and area and height of gl. fundus stomach between the wild boar and Landrace pig. The height of jejunum enteraden and villus, the height and density of colon enteraden, the column cell of jejunum villus and colon enteraden, the goblet cell of colon enteraden of wild boars were significantly higher than that of Landrace pigs (p<0.05). There were no significant differences in density of jejunum enteraden, the height of jejunum villus and the goblet cell of jejunum villus between the wild boar and Landrace pig. The concentration of total serum cholesterol was significantly lower in wild boars than that in Landrace pigs (p<0.1). There were no differences between pig breeds in the content of serum TRIG, TP, GLU and GOT, GPT and ALKP activities, erythrocyte count, thrombocyte count, white cell count, hemoglobin countand erythrocyte sedimentation rate. As regard as result of slaughter and analysis of pork quality, the lean proportion and area of eye-muscle were significantly higher in Landrace pigs than that of wild boars (p<0.05); But the dorsal fat (p<0.05) and the tender degree of muscle of wild boars were significantly higher than those of Landrace pigs (p<0.1). The proportion of hunkers and slaughter ratio were not differences between wild boar and Landrace pig. There was a significant interaction between animal and diet type in the digestibility of crude fibre (p<0.05). The digestibilities of nutrient of low fibre diet were higher than that of high fibre diet in wild boars and Landrace pigs. When the high fibre diet was fed, the digestibilities of diet nutuient for Landrace pigs significantly decreased. This means that the capability of wild boars adaption to high fibre diet is better than Landracepigs...