Effect of dietary protein on lipid profile and testosterone of Karadi male lambs

Abstract

The experiment was conducted at a private farm located in Shakal village belonging to Kalar district, 150 kilometers South-East of Sulaimani city, from the 1st of September 2021to to the 1st of December 2021, and used 12 individual karadi male lambs. were used to study biochemical changes in blood parameters (lipid profile and testosterone).as affected by concentrate diets containing two different levels of dietary crude protein (CP) ( sunflower and soybean meal), two-level (low, high). Concentrate diets were offered to lambs at a rate of 3% of live Body weight (BW) in addition to barley straw add liptum, Results showed that Increasing and decreasing levels and sources of dietary protein had no significant dif¬ference (P>0.05) on lipid profile(low-density lipoprotein, high-density lipoproteins, cholesterol, triglyceride (TG)), were not affected by the addition of sunflower and soybean meal in feeding lamb. but the testosterone significantly different levels and source (P<0.05).at the first period .first time The lambs of the (T2) and (T4) showed significantly (0.257 ± 0.118 b), (0.146 ± 0.075 b) Respectively as compared to(T1) (1.533 ± 0.156 a). At the second time, the lambs of the (T3) showed significantly (0.177 ± 0.087 b) compared to (T1) (1.525 ± 0.294 a).