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Öğe The effects of stocking density on broiler performance(1996) Işcan K.M.; Çetin O.; Tepeli C.; Dere S.The performance traits of broilers reared in different stocking density groups were investigated. Data were obtained from 910 broilers housed in litter-type pens at densities of 12.5 (1), 15 (2), 17.5 (3) and 20 (4) broilers/m2. Each pen had 14 m2 floor space. More than 60% of the broilers were selected by random sampling and were weighed on the 21st, 35th and 49th days of investigation. Body weight estimates of the 1, 2, 3 and 4 broilers/m2 density groups were 1634.3, 1511.7, 1506.5. and 1503.9 g respectively. Mortality rates were 6.2, 7.1, 7.7 and 6.4% for the same groups respectively. Feed efficiency values were estimated to be 1.97, 2.06, 2.07, and 2.09 kg at 49 days of age for the same groups respectively. The diffeences between the values of the groups with respect to body weight at the 35th day were not statisticaly significant. The first group had higher body weight mean estimates than the other groups at the 49th day (P<.01). On the 21st day of research, the first group had a greater body weight mean estimated than the third and fourth groups (P<.05). The differences between the mortality rate values of the groups were not statistically significant at 21. 35. and 49 days of age. Consequently, it may be said that the increase in the number of brids housed per m2 floor space in pens contributed to a more desirable mortality rate and feed conversion rate; therefore, a stocking density broilers/m2 instead of 10-12 broilers/m2 in broiler rearing has more practical benefit and is more productive.Öğe Growth characteristics of Kangal and Akbaş Turkish shepherd dogs [Kangal ve Akbaş irki türk çoban köpeklerinde büyüme özellikleri](2003) Tepeli C.; Çetin O.; Inal Ş.; Kirikçi K.; Yilmaz A.This study was performed to compare the growth characteristics of Kangal and Akbaş Turkish shepherd dogs. Live weight records of 141 puppies at birth, 86 puppies at weaning, 68 puppies at 6 and 12 months of age and four different body measurements of 68 dogs at different ages were used for determining growth characteristics. The least squares method was used for statistical analysis. Least squares mean weights of Kangal and Akbaş puppies at birth, weaning, and 6 and 12 months of age were 557.21 and 506.95 g, 5657.35 and 4457.70 g, 21.58 and 19.38 kg, 40.89 and 37.66 kg, respectively. At age 1 year, in Kangal and Akbaş dogs, the average shoulder height was 70.54 and 65.91 cm, rump height was 71.27 and 66.66 cm, body length was 64.05 and 59.43 cm, and body circumference was 78.10 and 71.86 cm, respectively. In conclusion, it was determined that Kangal dogs were superior to Akbaş dogs with respect to all growth characteristics (P < 0.05).Öğe
