Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
The Effects Of Season And Chick Sex On Certain Performance Parameters In Commercialturkey Farms In The Aegean Region, Gündüz İlsever, Pembe Di̇lara Keçi̇ci̇, Bülent Eki̇z
The Effects Of Season And Chick Sex On Certain Performance Parameters In Commercialturkey Farms In The Aegean Region, Gündüz İlsever, Pembe Di̇lara Keçi̇ci̇, Bülent Eki̇z
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to determine the effects of season and sex on the production efficiency of commercial turkey farms in the Aegean Region. The data of 1161 production periods (570 male and 591 female) on 139 turkey farms between 2008 and 2017 were analysed. Daily feed consumption, feed conservation ratio (FCR), average daily gain (ADG), performance index, and carcass weight (P < 0.001) were higher in males than females. While males and females had a similar mortality rate in the first week (P > 0.05), the mortality rate in the later stages was higher in males (P < 0.001). The mortality rate in the initial period was highest in production periods that began in winter and lowest in those that began in summer (P < 0.001). The total mortality rate was higher in the autumn group than in the spring and summer groups (P < 0.001). Rearing season × sex interaction had a significant influence on the performance characteristics investigated in the study, except for mortality rates and survival. In males, FCR was lower in the autumn and winter groups than that of the spring and summer groups (P < 0.05). The highest ADG values were observed in the summer group for males and in the winter group for females. The best performance index was in the summer group in males, and the lowest performance index was observed in the autumn group for both males and females. In conclusion, environmental arrangements are needed in order to reduce the mortality rate and improve performance in production periods that began in autumn and winter.
Water Ph Effects On Survival, Reproductive Performances, And Ultrastructure Of Gonads, Gills, And Skins Of The Javanese Medaka (Oryzias Javanicus), Ahmad Fadhil Mohd Salleh, Mohammad Noor Amal Azmai, Nurrul Shaqinah Nasruddin, Syaizwan Zahmir Zulkifli, Ferdaus Mohamat Yusuff, Wan Norhamidah Wan Ibrahim, Ahmad Ismail
Water Ph Effects On Survival, Reproductive Performances, And Ultrastructure Of Gonads, Gills, And Skins Of The Javanese Medaka (Oryzias Javanicus), Ahmad Fadhil Mohd Salleh, Mohammad Noor Amal Azmai, Nurrul Shaqinah Nasruddin, Syaizwan Zahmir Zulkifli, Ferdaus Mohamat Yusuff, Wan Norhamidah Wan Ibrahim, Ahmad Ismail
Turkish Journal of Veterinary & Animal Sciences
The Javanese medaka (Oryzias javanicus) has the potential to be developed as a test organism. It also exhibited many characteristics that are similar to those of well-known laboratory fishes. This study determined the effects of water pH on the survival, reproductive performances, and ultrastructure of the gonads, gills, and skins of the Javanese medaka. This study confirmed that Javanese medakas treated with pH 6-7 displayed the lowest mortality, but increased in egg production and hatchability. This supposition is supported by strong evidence from the oocytes and testes stage analyses, including histological examinations. The ultrastructure of gills and skins of fish …
Survival And Growth Of Common Carp (Cyprinus Carpio L.) Exposed To Different Water Ph Levels, Mohammad Saeed Heydarnejad
Survival And Growth Of Common Carp (Cyprinus Carpio L.) Exposed To Different Water Ph Levels, Mohammad Saeed Heydarnejad
Turkish Journal of Veterinary & Animal Sciences
The aim of the present study was to examine the survival and growth performance of common carp (Cyprinus carpio L.) in water with different pH values. Carp (17.8 ± 1.21 cm; 52.14 ± 7.13 g) were transferred to 21 tanks previously adjusted with 7 different pH values: 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, and 9.0. Each value had 3 replicates, and all experiments lasted for 21 days. The survival and growth of carp were assessed at days 7, 14, and 21. At the end of the 21 days, greater weight, length, survival, and biomass were found for pH values of …
The Growth And Survival Characteristics Of Holstein Female Calves Weaned At Various Ages, Ömür Koçak, Hali̇l Güneş
The Growth And Survival Characteristics Of Holstein Female Calves Weaned At Various Ages, Ömür Koçak, Hali̇l Güneş
Turkish Journal of Veterinary & Animal Sciences
This study was carried out at Kırklereli - Karacadağ Farm of Tikveşli Agricultural Company. It was aimed to investigate the growth and survival characteristics and the most cost-effective weaning age of Holstein female calves weaned at various ages. In the study, 100 female calves born single from Holstein heifers were used and they were divided randomly into five groups each having 20 calves. The calves were weaned at 28 (Group 28), 35 (Group 35), 42 (Group 42), 56 (Group 52) and 70 (Group 70) days of age. The live weights at 180^{th} day of age of calves in 28, 35, …
A Study On Survival Of Listeria Monocytogenes During Manufacture And Ripening Of Kashar Cheese, Fi̇gen Çeti̇nkaya, G. Ece Soyutemi̇z
A Study On Survival Of Listeria Monocytogenes During Manufacture And Ripening Of Kashar Cheese, Fi̇gen Çeti̇nkaya, G. Ece Soyutemi̇z
Turkish Journal of Veterinary & Animal Sciences
This study was performed to determine the survival of Listeria monocytogenes during the manufacture and ripening of Kashar, a popular cheese in Turkey. Raw milk was inoculated at 4 different levels with L. monocytogenes serotype 4b (ca. 3, 4, 5, and 6 log cfu ml^{-1} for group 1, 2, 3 and 4 cheeses, respectively) and made into Kashar cheese using the traditional technique. Following dry salting for 10 days at 18 ± 2 ºC, the Kashar cheese was ripened for 20 days at the same temperature and then stored at 5 ± 1 ºC for 3 months. Samples of milk, …
Growth And Survival Of Simmental Calves Reared Outdoors In Individual Hutches, Necmetti̇n Ünal, Okan Ertuğrul, Orhan Alpan
Growth And Survival Of Simmental Calves Reared Outdoors In Individual Hutches, Necmetti̇n Ünal, Okan Ertuğrul, Orhan Alpan
Turkish Journal of Veterinary & Animal Sciences
The effects of outdoor raising on the survival and growth of Simmental calves in individual hutches were studied at Kazova State Farm, the location having a mixture of Black Sea and semiarid continental climate conditions. A total of 63 female calves born in each of the four seasons between March 1996 and February 1997 were used. The animals were kept in individual hutches for 3 months (preweaning period) and then in groups of 10 until 6 months of age (postweaning period). The mean birth weight was 38.92 kg, while average birth weights for the seasons ranged from 37.70 to 40.44 …