Effects of cold stress during transportation on hatchability and chick quality of broiler breeder eggs

Ahmad SALAHI; Mozhdeh MOOSANEZHAD KHABISI; Abbas PAKDEL; Ali BAGHBANZADEH

Makale detayları

Effects of cold stress during transportation on hatchability and chick quality of broiler breeder eggs

Yazarlar:

Ahmad SALAHI | Mozhdeh MOOSANEZHAD KHABISI | Abbas PAKDEL | Ali BAGHBANZADEH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2012 Vol.36 Issue 2, pp.159-167

Belge Tipi:

Makale

Yayın Tarihi:

1/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000766981

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128

Anahtar kelimeler:

Özet:

 

In this experiment 72,000 broiler breeder eggs (Ross 308 strain) collected from 36-week-old flocks were subjected to cold stress during transportation. Eggs were allocated to 4 temperature groups (treatments): 1.2 °C, 1-2 °C, 2.5-3.9 °C, 4-6 °C, and a control group, 21-22 °C. Each treatment had 14,400 eggs, and data were analyzed in a completely randomized design. The results of this study showed that cold stress had a significant effect on percentage of egg weight loss (P < 0.001), and minimal egg weight loss occurred in the control group. The percentage of exploders and early hatched chicks and chick weight were higher in the below zero temperature treatment than the other groups (P < 0.01). Cold stress had a significant effect on chick length, hatchability, and the hatching of fertile eggs (P < 0.001). The effects of cold stress on chick yield and body weight uniformity were significant (P < 0.01). The effect of cold stress on hatchery byproduct efficiency was significant (P < 0.001), but did not affect fertility. Cold stress also had significant effects on early (1-8 days), middle (9-17 days), and late mortality (20-21 days); total embryo mortality; and exposed brain. Ectopic viscera was significant (P < 0.001), and most mortality was observed in below 4 °C treatments. Total percentages of malpositions and deformity (P < 0.001) and egg contamination at 1-9 days (first stage) and 10-21 days (second phase) were affected by cold stress (P < 0.001). Cold stress also had a significant impact on the number of cull chicks; percent of string navel, button navel, total string, and button; omphalitis; full body cavity; red hocks; dehydration; dirty chickens; and stubby down. Cold stress affects performance during incubation and overall chick quality.

 

In this experiment 72,000 broiler breeder eggs (Ross 308 strain) collected from 36-week-old flocks were subjected to cold stress during transportation. Eggs were allocated to 4 temperature groups (treatments): 1.2 °C, 1-2 °C, 2.5-3.9 °C, 4-6 °C, and a control group, 21-22 °C. Each treatment had 14,400 eggs, and data were analyzed in a completely randomized design. The results of this study showed that cold stress had a significant effect on percentage of egg weight loss (P < 0.001), and minimal egg weight loss occurred in the control group. The percentage of exploders and early hatched chicks and chick weight were higher in the below zero temperature treatment than the other groups (P < 0.01). Cold stress had a significant effect on chick length, hatchability, and the hatching of fertile eggs (P < 0.001). The effects of cold stress on chick yield and body weight uniformity were significant (P < 0.01). The effect of cold stress on hatchery byproduct efficiency was significant (P < 0.001), but did not affect fertility. Cold stress also had significant effects on early (1-8 days), middle (9-17 days), and late mortality (20-21 days); total embryo mortality; and exposed brain. Ectopic viscera was significant (P < 0.001), and most mortality was observed in below 4 °C treatments. Total percentages of malpositions and deformity (P < 0.001) and egg contamination at 1-9 days (first stage) and 10-21 days (second phase) were affected by cold stress (P < 0.001). Cold stress also had a significant impact on the number of cull chicks; percent of string navel, button navel, total string, and button; omphalitis; full body cavity; red hocks; dehydration; dirty chickens; and stubby down. Cold stress affects performance during incubation and overall chick quality.

Makale detayları

Effects of cold stress during transportation on hatchability and chick quality of broiler breeder eggs

Yazarlar:

Ahmad SALAHI | Mozhdeh MOOSANEZHAD KHABISI | Abbas PAKDEL | Ali BAGHBANZADEH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2012 Vol.36 Issue 2, pp.159-167

Belge Tipi:

Makale

Yayın Tarihi:

1/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000766981

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128

Key words: Cold stress

egg transportation

hatchability

chick quality

malposition and deformity

culls

egg weight loss

embryo mortality and contamination

Sayı

Makale detayları

Yazarlar: Ahmad SALAHI | Mozhdeh MOOSANEZHAD KHABISI | Abbas PAKDEL | Ali BAGHBANZADEH

Yayıncı: TUBITAK

Dergi: Turkish Journal of Veterinary and Animal Sciences 2012 Vol.36 Issue 2, pp.159-167

Belge Tipi: Makale

Yayın Tarihi: 1/2012

Belge Dili: Türkçe

Document ID (Org No.): 2000766981

Sıklık: İki Aylık

eISSN: 1303-6181

pISSN: 1300-0128

Sayı

Yazarlar:

Ahmad SALAHI | Mozhdeh MOOSANEZHAD KHABISI | Abbas PAKDEL | Ali BAGHBANZADEH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2012 Vol.36 Issue 2, pp.159-167

Belge Tipi:

Makale

Yayın Tarihi:

1/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000766981

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128