Kuluçkanın son 4 günlük evresinde uygulanan farklı sıcaklık derecelerinin bazı organ ağırlıkları ile broyler performansına etkileri

Bu çalışmada, kuluçkalık broyler yumurtalarına,kuluçka işleminin son 4 günlük döneminde uygulanan 4 farklı sıcaklık derecesinin, çıkışta bazı organ ağırlıkları ile çıkış sonrası 3 haftalık büyütme periyodu sonunda gelişme ile ilgili performans değerleri, ve parmak külü'nde Ca ve P seviyeleri üzerine etkileri incelenmiştir. Bu amaçla, kabin sıcaklıkları 97, 99, 101 ve 103 °F olacak şekilde düzenlenmiş ve gruplar sırasıyla, D, KON, Y ve ÇY olarak kodlan-mıştır. Elde edilen sonuçlara göre; çıkışta kalp ağırlığı D muamele grubunda diğerlerine nazaran önemli (P

Anahtar Kelimeler:

etlik piliç, sıcaklık, performans, kuluçka

The effects of different temperature degrees in last four days of incubation on some organ weights and post hatch performance in broiler

In current study, the effects of four different cabinet temperatures for last four days of incubation in broiler hatching eggs on post hatch performance for 3 weeks of age and Ca and P mineral levels in toe ash were evaluated. In this respect, the cabinet temperatures were kept as 97, 99, 101 and 103 °F and termed as D, KON, Y, and ÇY, respectively, for last four days of incubation. The current results shows that the heart weight increased significantly (P<0.01) in D treatment group than did others at hatch.Moreover, the gizzard weights were lower (P<0.01) in Y and ÇY groups than did others at hatch too. On the contrary, the hearth, liver, gizzard weights were not different. The total mortality rates in D, Y and ÇY groups have exhibited higher values (P<0.05) than KON group. The toe ash Ca levels increased significantly (P<0.01) in Y group than did others, while treatment effects on P levels were not sig-nificant. There were found no differences among groups for post hatch performance traits.

Keywords:

broilers, temperature, performance, incubation,

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