Effects of source and level of zinc on haematological and biochemical parameters in Baluchi lambs

摘要

Thirty six growing male Baluchi lambs with an average weight 26.5±0.3 kg were used to determine the level and source of zinc (Zn) supplementation in diet on performance of Baluchi lambs. Animals were divided into six groups. First group served as a control (T1) and fed the basal diet containing 33 mg/kg Zn. Second group was fed 50 mg/kg zinc propionate (T2), third group was fed 100 mg/kg zinc propionate (T3), fourth group was fed 50 mg/kg zinc sulphate (T4), fifth group was fed 100 mg/kg zinc sulphate (T5) and sixth group was fed 50 mg/kg zinc propionate and 50 mg/kg zinc sulphate. Results showed that the packed cell volume (PCV), mean corpuscular volume (MCV), and platelet distribution width (PDW) in T2 (P<0.05) than other groups. Number of red blood cell (RBC), haemoglobin (Hb) concentration, mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC) were higher (P<0.05) in T3 compared with other groups. Moreover, the number of white blood cell (WBC), platelets (PLT) and the concentration of calcium (Ca), phosphorous (P) and Zn in T6 were significantly high (P<0.05) compared to the other groups. In conclusion, feeding Baluchi lambs, with organic and mixed of inorganic and organic Zn, improved haematological, biochemical parameters, and concentration of zinc in serum of lambs.