RJAVS Jan-April 2019


Physiological responses and growth performance of growing Barki Ewe lambs fed treated Jojoba meal with Aspergllus orgyzae under semi-arid conditions

Abstract This study aimed at investigating the effect of feeding treated Jojoba meal with Aspergllus orgyzae Fk-923 fungus (TJM) on some hematological, blood biochemicals, thyroid hormones pattern and growth performance of growing female Barki lambs. Thirty Six of growing Barki ewe lambs (90 days of age with average live body weight of 15.41±0.71 kg) were used for 210 days. Lambs were randomly divided into three equal groups (12 ewe lambs of each). The 1st group (G1) served as control and fed the basal diet, while the 2nd and 3rd groups (G2 and G3) were fed diet contained 7 and 14% TJM, respectively as a replacement of cotton seed meal. Results revealed that Jojoba treated meal improved hematological parameters of lambs, especially red blood cells count and hemoglobin concentration. Total serum proteins and globulin concentrations increased significantly in female lambs of TJM groups, while albumin concentration insignificantly decreased. Animals of G2 recorded the highest value of glucose (51.28 mg/dl) followed by those of G3 (47.48 mg/dl), while animal of control group recorded the lowest value (43.07 mg/dl). However, cholesterol concentration recorded the highest (P<0.05) value by G1 than those of TJM groups with values being 99.78, 91.85 and 91.22 mg/dl for G1, G2 and G3, respectively. In accordance, total lipids, high density lipoprotein cholesterol and low density lipoprotein cholesterol were significantly higher in control group than those in TJM groups. On the other hand, Jojoba meal did not affect liver enzymes and blood urea, while creatinine decreased significantly. Triiodothyronine hormone insignificantly increased in TJM groups than the control one, while Tetraiodothyronine significantly increased in G2 than other groups. Daily gain and final body weight increased significantly in ewe lambs of TJM groups than those of control group. It could be concluded that treated Jojoba meal with AspergllusorgyzaeFk-923 fungus can be used in growing lambs' ration under semi-arid conditions of Egypt without critical adverse effects on their hemato-biochemical responses or metabolic rate.

[ FULL TEXT PDF 1-8 ] DOI: 10.22587/rjavs.2019.11.1.1