PATEL, A. M.SHAH, SHAILESH V.2018-07-052018-07-051990http://krishikosh.egranth.ac.in/handle/1/5810057209A study was undertaken at Livestock Research Station, Veterinary College, Anand from 30th April 1988 to 15th May 1989 to ascertain and compare the growth rate, feed conversion efficiency, water ingestion, serum hoarmonal and biochemical profile of inter-se mated Jersey x Kankrej F2 and F3 crossbred calves, The body weights of JKF2 and JKF3 female calves at 26th and 58th week of age were 107.150 ± 3.13 and 99.714± 4.34 kg and 219.800 ± 6.40 and 216.794 ± 4.21 kg respectively. The daily growth rate of JKF2 and JKF3 calves was 493.625 ± 37.88 g and 497.137±26.30 g respectively. The generation difference was non-significant but the effect of age on growth rate was observed to be significant. The average daily dry matter and TDN intake per 100 kg body weight in JKF2 heifers were observed to be 3.390+ 0.054 kg and 2.050 ± 0.03 kg respectively, while that of JKF3 heifers, the respective values were 3.482 ±0.07 and 2.119 ± 0.04 kg. Though, the F3 calves consumed higher DM and TDN per unit body weight, the generation effect was found to be non-significant. However, significant effect of age, i.e. higher DM and TDN consumption by younger calves as compared to older calves, was observed.enLIVESTOCK PRODUCTIONA STUDYThesis