Effects different levels of Garlic exteract on some blood parameters and performance and carcasses in fattening Zel lambs

This experiment was conducted to investigate the effects of different levels of Garlic extract on performance )including daily body gain, feed consumption and FCR and some carcass parameters(including hot carcass weight, heart, liver, lungs, kidneys, fad around of kidneys, empty the digestive system, thigh, shoulder) and blood parameters((including Glucose, Cholesterol, Triglycerides, HDL and LDL) of fattening Zel lambs. Essential oils and extracts are relatively new compounds that are used as supplements in animal feed.
In the 14 week experiment (2 weeks adaptation and 12 weeks for main experiment period), 12 lambs were allocated in 3 treatments respectively 0, 125 and 250 ml (of garlic extracts that sprayed on daily feed) of 4 lambs each. All of lambs weighted 2 weeks once at the experiment period. Then data were analyzed with the GLM procedure of SAS and mean of parameters was compared with Duncan’s at P The results showed that in performance parameters daily weight gain was 128, 137 and 146 gr/day, mean of daily feed intake 1.77, 1.83 and 1.87 Kg and feed conversion rate was 15.5, 14.9 and 13.10 in treatments 1, 2 and 3respectively. There was significant difference in daily weight gain between experimental treatments, but the amount of daily feed intake and FCR did not showed significant different. At the end of experiment period, 9 lambs were slaughtered and their carcasses were evaluated. It showed that in carcasses parameters such as mean weight of carcass, heart, liver, 4 compartment stomach, arms, thigh and thigh to carcass ratio had significantly increased but abdominal fat had significantly decrease with increasing use of Garlic extract .In blood parameters of Triglyceride , Glucose, Cholesterol, high density lipoprotein (HDL), low density lipoprotein (LDL) levels had significant different. However Cholesterol, HDL and TG was decreased and amount of HDL and Glucose increased.
The results showed that performance parameters and carcass parameters in fatting lambs improved with garlic extract and reduced fat and increased daily weight gain. Also a significant reduction in Cholesterol, LDL and Triglyceride in treatments containing Garlic extract showed that the addition of Garlic extract to the diet was 250 Ml daily.