Aim: Our objective was to evaluate the effect of bypass nutrients i.e. bypass lysine, methionine and fat on growth and nutritional efficiency in growing Jaffrabadi buffalo heifers aged 21 to 27 months.Materials and Methods: Twenty buffalo heifers were divided into four groups of equal number: control group (T1), bypass fat supplementation (T2), bypass lysine and methionine supplementation (T3) and bypass lysine, methionine and fat supplementation (T4). The feeds were analyzed for proximate constituents. Body measurements (body length, body height, heart girth, body girth, pelvic length and pelvic width) as well as body weights (kg) of individual animals were recorded at the beginning and thereafter at every fifteen day interval throughout the experimental period. Feed conversion ratio was determined in terms of dry matter required per kg gain in body weight under different treatments.Results: The total weight gain and average daily body weight gain during the experiment was highest in T4 followed by T2, which differed significantly (P<0.05) from that of T1. Biometric changes were uniform in all the experimental groups and the changes were positive. Heifers under the present experimental condition, gained biometry considerably though not significantly. Treatment differences were significant (P<0.05) for average value of percent dry matter intake but no significant differences were found between treatments for average daily dry matter intake and dry matter intake per kg metabolic body weight. The efficiency of feed utilization was best in T4 followed by T2, T3 and T1 groups but the treatment differences were statistically non significant (P>0.05). Conclusion:Incorporation of bypass nutrients (lysine, methionine and fat) in the ration of growing Jaffrabadi heifers improved live weight gain, dry matter intake (kg/day), dry matter intake per kg metabolic weight and feed conversion ratio (DMI/kg body weight gain).

No abstract

An experiment was conducted to evaluate supplementation of rumen protected LYS (lysine) and MET (methionine) on hematological and hormonal profile in Jaffrabadi buffalo heifers. Eighteen buffalo heifers of Cattle Breeding Farm, Junagadh Agricultural University receiving either of the dietary treatments for a period of 180 days: T 1-DCP requirement met through Concentrate mixture, T 2-DCP requirement through cottonseed cake and concentrate mixture (50:50) and T 3-In addition to DCP requirement through concentrate mixture with supplementation of rumen bypass LYS and MET @ 5.0 g and 2.5 g/day/anima, respectively. Mean RBC (red blood cell), WBC (white blood cell), HB (haemoglobin), MCV (mean corpuscular volume), MCHC (mean corpuscular haemoglobin concentration), MCH (mean corpuscular haemoglobin), PLT (total platelets), PCT and HCT (hematocrit / packed cell value) values were analysed. Also Plasma Estradiol and progesterone concentration was estimated by employing standard Radio Immuno Assay (R.I.A.) technique. Treatment and period has no effect in influencing the hematological values of experimental Jaffrabadi buffalo heifers. Mean values for the entire periods for Estradiol (pg/ml) and Progesterone (ng/ml) were 22.61±4.18, 22.28±3.59, 31.00±9.03; 0.24±0.05, 0.15±0.03 and 0.20±0.06. There was no clear cut trend in T 1 and T 2 but however, in T 3 there was a linear response with regard to Estradiol level. Treatment effect was non-significant (P>0.05) at 0, 90, 180 days levels on plasma concentration of Estradiol and Progesterone. By pass LYS and MET have no effect on haematological and hormonal parameters in Jaffrabadi heifers with these feeding supplements.

No abstract

No abstract