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  • Küçük Resim
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    Effect of Yucca schidigera Spraying in Different Litter Materials on Some Litter Traits and Breast Burn of Broilers at the Fifth Week of Production
    (Kafkas Univ, Veteriner Fakultesi Dergisi, 2013) Onbasilar, Esin Ebru; Erdem, Evren; Unal, Necmettin; Kocakaya, Afsin; Torlak, Emrah
    This study was carried out to determine the effects of different levels of Yucca schidigera spraying in different litter materials on some litter traits (moisture, pH, ammonia, total colony count, number of Enterobacteriaceae and number of yeast and mold) and breast burn of broilers at the 5th week of production. A total of four hundred thirty two 1-d-old male broiler chicks (ROSS-308) were used. In this study 12 chicks were put in each pen having 170x94x90 cm (depth x length x height). Half of the litter was wood shavings, the other was rice hull. Yucca schidigera extract was pulverized weekly at the level of 0, 4% and 8% to each pen from the second week of the study. Litter materials and Yucca schidigera spraying at different level did not affect the examined litter traits and breast burns of broilers (P>0.05) at the 5th week of production.
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    Öğe
    Effects of the genotype, cage type and time period on the behaviour of laying hybrids at the same egg production level
    (Springer, 2022) Onbasilar, Esin Ebru; Erdem, Evren; Kocakaya, Afsin; Gungor, Omer Faruk; Kahraman, Mucahit; Yaranoglu, Busra; Unal, Necmettin
    Hybrids with different morphological and yield characteristics are used in the table egg production. There is no change in the cage systems according to the different hybrids in the regulation. This study aimed to investigate the effects of genotype (brown laying hybrids (BLH) and white laying hybrids (WLH)) and cage type (conventional and enriched cages) on behaviours of hens at the 90% egg production level. Behavioural data were recorded with video cameras during the 4 days. Data were analysed in 6 time periods as 05.00-08.00 am, 09.00-12.00 am, 01.00-04.00 pm, 05.00-08.00 pm, 09.00-12.00 pm and 01.00-04.00 am. Behaviour inspection each hour was divided into 4 quarters and the first 3 min of each quarter were evaluated. Behaviours were represented as the proportion of the total behaviour performed in the time period by a given hen. There was no interaction between hens' behaviour and the genotype at the same egg production level. The frequency of feeding behaviour was found to be significantly lower (P < 0.01), but comfort behaviour was higher (P < 0.05) in hens that were reared in the enriched cages. Only preening was seen as a comfort behaviour due to the cage size. The feeding, drinking, pecking hen, comforting, walking, sitting, resting and perching behaviours changed during the day (P < 0.01). Especially, the transition from light to dark influenced the perching behaviour negatively. No interactions were detected amongst genotype, cage type and time period. Feeding behaviour decreased and the comfort behaviour increased in the hens that were reared in the enriched cages because there were materials that would exhibit different behaviours. Hens in the enriched cage could not suddenly adapt to the dark and light period. For this reason, transitions to light and dark periods in poultry houses should be provided gradually, as in natural life.
  • Küçük Resim
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    Some egg quality traits of two laying hybrids kept in different cage systems
    (Ankara Univ Press, 2018) Onbasilar, Esin Ebru; Unal, Necmettin; Erdem, Evren
    Interest has been increasing about enriched cages affecting the laying hens and the producers. Egg quality traits are important for economic impact. Whence, the purpose of this study was to determine the differences in egg quality traits of two laying hybrids reared in conventional and enriched cages at different ages. 532 Lohmann Brown Classic (LB) and 532 Lohmann LSL Classic (LW) hens were kept from 16 to 73 weeks in either conventional cages or enriched cages. Twenty eight eggs were selected randomly from each hybrid and cage group at 20, 30, 40, 50, 60 and 70 wk of ages at from 08.00 to 10.00 o'clock to evaluate egg quality traits. For this aim, a total of 672 eggs were used. Egg weight, shape index, breaking strength, shell thickness, albumen index, yolk index and Haugh Unit were determined. Yolk index, albumen index and Haugh Unit in eggs of hens were reared in conventional cages were lower than those of in enriched cages. Egg weight, shape index and shell thickness were higher in eggs laid by LB hens. Layer age was affected all examined egg quality parameters. Consequently, albumen index, yolk index and Haugh Unit were enhanced by the enrichment of the cages and interactions among cage type, hybrid and layer age should be taken for the egg quality traits.