UTILIZATION OF CRUDE PROTEIN IN PIGS DIFFERENTLY RESPONDING TO HALOTHANE ANESTHESIA

In the balance experiment digestibility and retention of crude protein in two groups of pigs, differently responding to the halothane test ( HAL+ and HAL-), were observed. In the HAL- group we found out higher d igestibility coefficients for calcium and phosphorus (P > 0.05). For m agnesium and sodium the digestibility coefficients were higher for the animals of the HAL+ group, significantly higher for sodium (P < 0.05) . Higher calcium secretion in the faeces of animals in the HAL+ group (P < 0.05) was confirmed, which caused higher calcium retention in the HAL- group (P < 0.05). In the group presented the above retention was higher by 0.538 g. Higher magnesium retention in the group of pigs, r esponding to halothane positively, was caused by lower level of secret ion urine (P > 0.05). Larger amount of phosphorus was secreted in urin e by animals of the HAL+ group (P < 0.05). The results obtained in the balance experiment refer to important relations of macroelements obse rved in metabolism of pigs, positively responding to halothane anesthe sis.