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Full-Text Articles in Life Sciences
Productive Performance, Egg Quality, And Hatching Traits Of Japanese Quail Lines Selectedfor Higher Body Weight And Egg Number, Abdur Rehman, Jibran Hussain, Athar Mahmud, Khalid Javed, Abdul Ghayas, Sohail Ahmad
Productive Performance, Egg Quality, And Hatching Traits Of Japanese Quail Lines Selectedfor Higher Body Weight And Egg Number, Abdur Rehman, Jibran Hussain, Athar Mahmud, Khalid Javed, Abdul Ghayas, Sohail Ahmad
Turkish Journal of Veterinary & Animal Sciences
The present study evaluated the effect of selection for higher body weight (weight based selection = WBS) and egg numbers (egg based selection = EBS) on productivity, egg quality, and hatching traits of Japanese quail for three generations. From a base population of 1125 day-old chicks of Japanese quail, best performing families were allowed to propagate for getting next generation. WBS in G3 presented higher values of feed intake, egg weight, hatching weight. However, egg production and feed conversion ratio were better in EBS during G3. The incidence of embryonic mortality was also lower in the WBS line. In the …
Productivity And Adaptation Ability Of Holstein Cattle Of Different Genetic Selections, Ivan Fiodorovich Gorlov, Svetlana Evgenievna Bozhkova, Olga Pavlovna Shakhbazova, Vera Vasilievna Gubareva, Natali Ivanovna Mosolova, Elena Yurievna Zlobina, Yuriy Nicolaevich Fiodorov, Alexey Sergeevich Mokhov
Productivity And Adaptation Ability Of Holstein Cattle Of Different Genetic Selections, Ivan Fiodorovich Gorlov, Svetlana Evgenievna Bozhkova, Olga Pavlovna Shakhbazova, Vera Vasilievna Gubareva, Natali Ivanovna Mosolova, Elena Yurievna Zlobina, Yuriy Nicolaevich Fiodorov, Alexey Sergeevich Mokhov
Turkish Journal of Veterinary & Animal Sciences
The purpose of the research was to compare economically useful traits of Holstein cows of different selections. The results show that the German and Australian selections were superior to the Danish and American cows in terms of their growth (at 36 months of age, the body weights of the German and Australian cows were 36.5 and 27.6 kg greater than the Danish cows and 24.3 and 15.4 kg greater than the American cows, respectively). Maximum milk yield was obtained from the American and German cows (25,220 and 24,861 kg). Their milk also had higher fat content. The maximum protein content …
Relationship Between Dead Pupa Removal And Season And Productivity Of Honey Bee (Apis Mellifera, Hymenoptera: Apidae) Colonies, Ahmet Güler, Hakan Toy
Relationship Between Dead Pupa Removal And Season And Productivity Of Honey Bee (Apis Mellifera, Hymenoptera: Apidae) Colonies, Ahmet Güler, Hakan Toy
Turkish Journal of Veterinary & Animal Sciences
This study was conducted to evaluate the dead pupae removal behaviour of 90 honey bee (Apis mellifera L.) colonies during the beekeeping season and the relationships between removal and colony productivity. The liquid nitrogen technique was used in May, June, July, August, and September. The number of removed pupae was significantly (P < 0.01) correlated with the month and changed throughout the season. The highest cleaning efficiency of the colonies were recorded in July and September, and the lowest were in May and August. While the average dead pupae removal was 83.75% in the 90 colonies, the percentage of removed pupae varied between 56.4% and 99.3% during the 5 months. There were significant positive correlations between dead pupae removal and honey yield (P < 0.01; r = 0.295), bee wax production (P < 0.01; r = 0.334), and adult worker bee population (P < 0.05; r = 0.233). No correlation was found between dead pupae removal and brood production and average temperature. Although hygienic behaviour has positive effects on many characters relating to productivity in untreated breeding populations, it is affected by many biotic and abiotic factors. This behaviour decreases with many stressful conditions (wasps, Merops sp., predators, honey harvesting) and increases with colony strength during the season.
The Effect Of Initial Live Weight On Technical And Economic Performance In Cattle Fattening, Yavuz Cevger, Hakan Güler, Savaş Sariözkan, Hasan Çi̇çek
The Effect Of Initial Live Weight On Technical And Economic Performance In Cattle Fattening, Yavuz Cevger, Hakan Güler, Savaş Sariözkan, Hasan Çi̇çek
Turkish Journal of Veterinary & Animal Sciences
This research was carried out to assess cattle fattening activity between October 1999 and March 2000 in terms of its technical and economic aspects. The data of 138 days' fattening in 54 male Brown Swiss hybrid (F_1) cattle of about 20-22 months old form the material of the research. The cattle whose initial live-weights were up to 200 kg were defined as Group I, those between 201 and 250 kg as Group II and those over 251 kg as Group III. The lowest value in the average live-weight costs per unit was found in Group I. The partial productivity of …
Performance Of Village Sheep Flocks In Central Anatoliaii. Fertility And Productivity Of Ewes, Olaf Thieme, Mehmet Karazeybek, Hali̇l İbrahi̇m Özbayat, Rahi̇me Sözmen
Performance Of Village Sheep Flocks In Central Anatoliaii. Fertility And Productivity Of Ewes, Olaf Thieme, Mehmet Karazeybek, Hali̇l İbrahi̇m Özbayat, Rahi̇me Sözmen
Turkish Journal of Veterinary & Animal Sciences
Performance data on fertility of ewes, pre-weaning mortilaty of lambs and productivity were collected during two years from 24 village flocks in Cnetral Anatolia. The data included flocks with sheep from the Akkaraman and Merino breeds and their crosses. The overall means for lambing rate, weaning rate, twining rate and pre-weaning lamb mortality were 92.1%, 89.8%, 4.8% and 6.9%, respectively. The fertility traits were significant effected by genetic group, area were the flock was located and age of ewe and the lamb mortality by the first two effects. Merino ewes had a significantly higher fertility and twinning rate than the …
The Study On Morphological And Physiological Characters Affecting The Productivity Of Some Honey Bee (Apis Mellifera L.) Genotypes Of Turkey, Ahmet Güler
Turkish Journal of Veterinary & Animal Sciences
Experimental material consisted of 36 selected colonies collected from 6 different regions of Turkey. During the swarming season 20 worker bees were taken from each colony in order to measure the morphological characters including corbicul and wax mirror area, tongue length and body size. Development of the colony population, brood rearing activity and honey yield during a season were determined and the hive was weighed weekly for 6 months under migratory beekeeping conditions. The relationships between some morphological and physiological characters which affected the productivity of genotypes were investigated. The average honey yields were found to be 24.38±3.58, 26.57±5.51, 57.15±3.43, …