News

a.z
Azizpour, A. (2019). A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period. , 32(2), 50-57. doi: 10.22092/vj.2018.123598.1505
Aidin Azizpour. "A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period". , 32, 2, 2019, 50-57. doi: 10.22092/vj.2018.123598.1505
Azizpour, A. (2019). 'A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period', , 32(2), pp. 50-57. doi: 10.22092/vj.2018.123598.1505
Azizpour, A. A Study On Congenital Anomalies In Hatched Broiler Chickens At The End Of The Incubation Period. , 2019; 32(2): 50-57. doi: 10.22092/vj.2018.123598.1505

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

تحقیقات دامپزشکی و فرآورده‌های بیولوژیک
Article 7, Volume 32, Issue 2, July 2019, Pages 50-57    PDF (593.33 K)
Document Type: Full Research Paper
DOI: 10.22092/vj.2018.123598.1505
Author
Aidin Azizpour*
Associate Professor of Poulry Diseases, University of Mohaghegh Ardabili, Ardabil, Iran.
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.
Keywords
Congenital abnormalities; Broiler chicks; Month; Stargazing
References

1.Butcher, G. D. and A.H. Nilipour. 2009. Chicken embryo malpositions and deformities. Reviewed. University of Florida, USA. 129: 1-3.
2.Grabowski, C. 1961. A Quantitative study of the lethal and teratogenic effects of Hypoxia on the Three-Day chick Embryo. American Journal of Anatomy journal. 102: 25-34.
3.Grawford, R.D. 1990. Poultry Breeding and Genetics, Amsterdam: Elsevier. 293-317.
4.Hulet, R. 2001. Chick quality, the result of maximising embryonic metabolism. Avian and Poultry Biology Reviews. 12(4): 169-202.
5.Iqbal, J., S. Hassan Khan, N. Mukhtar, T. Ahmed and R. A. Pashad. 2016. Effects of egg size (weight) and age on hatching performance and chick quality of broiler breeder. Journal of Applied Poultry Research. 1: 54-64.
6.Kazemi-fard, M., Z. Ansari Pirsaraei and E. Dirandeh. 2016. Effect of Different Levels of Dietary Conjugated Linoleic Acid on Broiler Breeder Hatchability and Performance. Research Animal Production. 7 (14): 76-81. (In Farsi).
7.Kirk, S., G.C. Emmans, R. Mcdonald and D. Arnot. 1980. Factors affecting the hatchability of eggs from broiler breeders. British Poultry Science. 21:37-53.
8.Leonor, H., M. Reis and M. Chaviro Soares. 1993. Th e effect of candling on the hatchability of eggs from broiler breeder hens. Journal of Applied Poultry Research. 2: 142-146.
9.Mauldinm, J. M. and R.J. Buhr. 1996. Chick abnormalities caused by hatchery conditions. World Poultry. 12: 39-42.
10.Riddell, C. 1975. Pathology of developmental and metabolic disorders of the skeleton of domestic chickens and turkeys. I. Abnormalities of genetic or unknown aetiology. Veterinary Bulletin. 45: 626-637.
11.Salahi, A., M. Moosanezhad Khabisi, A. Pakdel and A. Baghbanzadeh. 2012. Effects of cold stress during transportation on hatchability and chick quality of broiler breeder eggs. Turkish Journal of Veterinary and Animal Sciences. 36(2): 159-167.
12.Sandhu, J.S. and G.S. Brah. 1983. Monsters in domestic chicken embryos. Avian Diseases. 2: 501-502.
13.Tona, K., O. Onagbesan, B. Ketelaere, E. Decuypere and V. Bruggemmean. 2004. Effects of age of broiler breeders and egg storage on egg quality, hatchability, chick quality, chick weight, and chick posthatch growth to forty-two days. Journal of Applied Poultry Research. 13: 10-18.
14.Ulmer-Franco, A.M., G.M. Fasenko and E.E. O’Dea Christopher. 2010. Hatching egg characteristics chick quality and broiler performance at 2 breeder flock ages and from 3 egg weights. Poultry Science. 89: 2735-2742.
15.Yassin, H., A.G.J., Velthuis, M. Boerjan, J. Van Rie and R. B.M. Huirne. 2008. Field Study on Broiler Eggs Hatchability. Poultry Science. 87: 2408-2417.
16.Zojaji, N., H. Dadras, S.L. Poorbaghi, M. Sepehrimanesh and I. Razeghian jahromi. 2008. A survey on the incidence and types of congenital abnormalities in broiler chicks hatched Fars province hatcheries. In: Proceeding of 4 th National Symposium of Poultry Health and Diseases, Shahrekord, Iran. pp: 422-425. (In Farsi).

Statistics
Article View: 1,400
PDF Download: 644


counter
Journal management system. designed by sinaweb