FARKLI GENOTİPTEN YUMURTACI TAVUKLARIN EŞDEĞER ÇEVRE KOŞULLARINDA KARŞILAŞTIRMALI VERİM ÖZELLİKLERİ

Abstract

Ozet Bu calisma; Brown Nick, Isa Brown ve Tetra-SL yumurtaci hibritlerin esdeger cevre kosullarinda buyume ve uretim donemi verim performanslarini incelemek amaciyla yapilmistir. Her bir genotipten 1600 adet gunluk civciv altlikti yer sisteminde buyutuldukten sonra 16. haftada tavuk basina 45 cm 2 alan dusen apartman sistemi kafeslere nakledilmis ve 72 haftalik yasa kadar verimler incelenmistir. Brown Nick, Isa Brown ve Tetra-SL hibritlerin 18. hafta agirliklari sirasiyla 1481, 1517 ve 1514 g; buyume (0-18. hafta) donemi olum oranlari %2.81, 1.75 ve 1.50 (P<0.05); yumurtlama donemi olum oranlan X23.92, 27.82 ve 19.44 (P<0.05); 0-18 hafta yem tuketimleri 6857, 6826 ve 6685 g, %50 yumurta verimine ulasma yaslan 154, 148 ve 150 gun: tavuk basina yumurta verimleri sirasiyla (tavuk-kumes) 281. 258 ve 257 adet (P<0.05); ortalama yumurta agirligi 58.55, 60.59 ve 59.84 g; uretilen yumurta basina yem tuketimleri 135.5, 136.5 ve 145.7 g belirlenmistir. Sonuc olarak; buyume donemi olum oram ve yem tuketimi acisindan Tetra SL hibritlerin; kumese konulan tavuk basina uretilen yumurta sayisi ve uretilen yumurta basina yem tuketimine gore ise Brown NIck hibritlerin diger hibiitlerden daha ustun oldugu saptanmistir. Anahtar kelimeler: Ticari kahverengi hibritler, Performans testi, Yem tuketimi, Olum orani. COMPARATIVE PRODUCTION PARAMETERS OF DIFFERENT LAYER GENOTYPES IN THE SAME REARING CONDITION Summary This study was carried out to investigate the growing and production parameters of Brown Nick, Isa Brown and Tetra SL hybrids in the same rearing conditions. 1600 chicks from each genotype were used and Ihey reared on litter system till 16th week. After 16 week age they are moved battery cages where for each pullet has 45 cm 2 field, and their production were examined till 72 week. The weight of Brown Nick, Isa Brown and Tetra SL genotypes in 18 weeks of age were found 1481, 1517 and 1514 g, respectively. The mortality rate in growing period of above groups were found 2.81, 1.75 and 1.50% (P<0.05), and mortality rate at production period were found 23.92, 27.82 and 19.44% (P<0.05), respectively. Total feed consumption were found 6857, 6826 and 6685 g at 0-18 week and feed consumption for producing per egg was 135.5, 136.5 and 145.7 g, respectively. 50% egg production age of above groups were found 154, 148 and 150 day and egg production for per hen per housed were found 281, 258 and 257 (P<0.05) and average egg weight were found 58.55, 60.59 and 59.84 g, respectively. It was concluded that the mortality rate and feed consumption of Tetra SL at rearing period was better than other genotypes. Egg production per hen per housed and feed consumption for producing per egg of Brown Nick was better than other genotypes. Keywords: Commercial Brown Hybrids, Performance testing, Feed consumption, Mortality rate.