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    Cost-Benefit Analyses of Feeding with Different Concentrate Feeds in Tuj (Tushin) Lambs
    (Kafkas Univ, Veteriner Fakultesi Dergisi, 2010) Elmali, Dilek Aksu; Demir, Pinar; Kaya, Ismail
    In this study, live body weight increase, feed consumption and feed conversion rates as well as cost-benefit analysis were investigated in Tuj lambs fed with concentrate feed containing different protein sources for the feeding period of 30, 60 and 90 days. 24 weaning Tuj breed male lambs at 3-3.5 months of age were used as the animal material. The animals were randomly divided into 4 groups each consisting of 6 lambs, and each group was fed with concentrate feeds containing the same level of energy-protein from different protein sources. Meadow grass was used as roughage. After the acclimatization period, feed consumption, live body weight increase and feed conversion rates in the groups were determined at the end of 30-, 60- and 90-day periods. Total feed consumption, live body weight increase and feed conversion rates at 30-day period were 32.29 +/- 1.74, 6.13 +/- 0.39 and 5.43 +/- 0.18, at 60-day period were 69.55 +/- 3.96, 11.66 +/- 0.78 and 6.16 +/- 0.22, at 90-day period were 110.22 +/- 5.63, 16.40 +/- 1.03 and 6.92 +/- 0.22, respectively. Differences among periods were statistically significant (P<0.001). Among the groups fed with different concentrate feeds containing 4 different vegetative protein sources, results of cost analysis indicated that 90-day feeding and sunflower meal as the protein source should be utilized for the operational benefit.