Abstract:

Forty male of Nubian Kids goats at age of 5 -7 months, their average body weight was from (6.5 to 12.5kg) were used in this study to investigate the effect of different levels of Natron and Mineral block (0%, 1%, 2%; and 1%, respectively) on some blood metabolites (glucose, total cholesterol total protein, albumin, globulin and urea). The animals were divided into four equal groups each randomly. The experimental period covered twelve weeks. Blood samples were collected every two weeks for chemical analysis, they were taken three times, before feeding in the morning, after feeding at midday and in the evening the study showed variation in blood metabolites. In the evening the total protein value was significantly higher (P<0.05) in Mineral block. The albumin values in Mineral block 1%, Natron1% and Control were lower before feeding and increase significantly after feeding. The higher Creatinine values after feeding were recorded for treatment groups (including control). The Urea value in Natron1% was higher before feeding and decrease significantly after feeding. However, the significant (P<0.05) increase in the glucose values for Control, Natron1%, Natron2% and Mineral block 1% observed at midday and in the evening. When comparing cholesterol values for animals in Control, Natron 1% and Natron 2% throughout the day it was shown a significant (P<0.05) higher in the evening and midday than the morning. The values of total protein, albumin and Creatinine for control and treatment groups showed no significantly (P<0.05) from the morning to the evening.