A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period

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AZIZPOUR A.

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Journal: Veterinary Research & Biological Products Year:2019 | Volume:32 | Issue:2 (123) Page(s): 50-57

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Title

A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period

Author(s)

AZIZPOUR A. | Issue Writer Certificate

Keywords

Congenital abnormalitiesQ3

Broiler chicksQ2

MonthQ1

StargazingQ1

Abstract

The aim of this study was to investigate the prevalence of congenital anomalies in hatched broiler chickens of broiler breeder flocks at the end of the incubation period. For this purpose, hatched broilers from three broiler breeder flocks (Ross 308) were thoroughly inspected in hatchery from March to September 2016. After the incubation period, the hatched broilers of farms were recorded and the hatching chicks were graded for apparent complications and then recorded kinds of congenital anomalies. Data were analyzed in a completely randomized design with GLM (SAS 9. 1) and Duncan test. During a period of 6 Months. Among the hatching chicks examined, 1740832 normal chicks (96. 88%) and 56031 chicks with congenital anomalies (3. 12%) were observed. Eighteen types of congenital abnormality were identified for abnormal chicks. Stargazing (30. 31%) and cross beak (27. 43%) were the the highest abnormality. whereas small eyes (0. 12%) and extra fingers (0. 08%) had the lowest abnormality. The effects of six-Months period were significant (p<0. 05) on average percentage of congenital anomalies. so that, March with 4. 87% and September with 0. 47% had the highest and lowest frequency of abnormality, respectively. The results of this study showed that genetics and management factors were the most causes of congenital anomalies.

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APA: Copy

AZIZPOUR, A.. (2019). A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period. VETERINARY RESEARCHES BIOLOGICAL PRODUCTS (PAJOUHESH-VA-SAZANDEGI), 32(2 (123) ), 50-57. SID. https://sid.ir/paper/200769/en

Vancouver: Copy

AZIZPOUR A.. A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period. VETERINARY RESEARCHES BIOLOGICAL PRODUCTS (PAJOUHESH-VA-SAZANDEGI)[Internet]. 2019;32(2 (123) ):50-57. Available from: https://sid.ir/paper/200769/en

IEEE: Copy

A. AZIZPOUR, “A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period,” VETERINARY RESEARCHES BIOLOGICAL PRODUCTS (PAJOUHESH-VA-SAZANDEGI), vol. 32, no. 2 (123) , pp. 50–57, 2019, [Online]. Available: https://sid.ir/paper/200769/en

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