EFFECT OF CARBONIC ANHYDRASE POLYMORPHISMS ON PERFORMANCE TRAITS IN INDIGENOUS CHICKEN GENOTYPES IN NIGERIA

Auteurs-es

  • H. MUHAMMAD Ahmadu Bello University, Zaria, Kaduna State
  • B. I. NWAGU National Animal Production Research Institute, Shika, Zaria, Kaduna State.
  • M. ORUNMUYI Federal University, Oye-Ekiti, Ekiti State.
  • A. A. MUSA Kogi State University, Anyigba, Kogi State.
  • A. K. OLUTUNMOGUN National Animal Production Research Institute, Shika, Zaria, Kaduna State.
  • S. A. JOHNS Landmark University, Omu-Aran, Kwara State.

DOI :

https://doi.org/10.51791/njap.vi.7943

Mots-clés :

Carbonic anhydrase polymorphism, local chickens, weight, gene, genotypic

Résumé

The paper examined the possibility of performance differentiation and genetic characterization of indigenous chickens in Nigeria using carbonic anhydrase polymorphisms. F, offspring hatched from eggs produced by the pedigree mating of Normal feathered, Frizzle feathered and Naked Neck of Nigerian local cocks to their Normal feathered, Frizzle feathered and Naked Neck hens respectively were used. The birds were weighed on a weekly basis to collect data on body weight, breast girth and tibia length. At 20weeks, 5ml of blood was collected from the wing vein of each chicken for carbonic anhydrase electrophoresis, after which direct gene counting method was used to score the bands which separated based on the electrophoretic mobility into fast moving band (homozygous, AA gene), slow moving band (homozygous, BB gene) and mixture i.e. midway between fast and slow (heterozygotes, AB gene).Data obtained were subjected to general linear model procedure of statistical analysis system (SAS, 2002) and significant means were separated using tukey honestly significant difference of the same software. Gene and genotypic frequencies were calculated and tested for Mendelian inheritance ratio using chi-square. Carbonic anhydrase polymorphism was distinct into three forms viz; CAAA, CAAB and CABB. The birds were more of heterozygotes (CAAB) than either of the homozygotes (CAAA or CABB) for the three loci considered. This means more of the heterozygotes adapted and survived better than the homozygotes. There were low chi-square values for Frizzle (1.00), Normal (0.44), Naked Neck (3.39) and the entire population (2.94) which was in consistence with Hardy Weinberg's equilibrium. The differences observed were not consistent among the various biochemical genotypic categorization of carbonic anhydrase in terms of body weight (g), breast girth (cm) and tibia length (cm). In conclusion, carbonic anhydrase polymorphism does not suitably serve for body weight (g), breast girth (cm) and tibia length (cm) selection in indigenous chickens as other protein allozyme may serve.

Bibliographies de l'auteur-e

H. MUHAMMAD, Ahmadu Bello University, Zaria, Kaduna State

Department of Animal Science

M. ORUNMUYI, Federal University, Oye-Ekiti, Ekiti State.

Department of Animal Production and Health

A. A. MUSA, Kogi State University, Anyigba, Kogi State.

Department of Animal Production

S. A. JOHNS, Landmark University, Omu-Aran, Kwara State.

Department of Animal Science, College of Agricultural Science

Téléchargements

Publié-e

2024-07-30

Comment citer

MUHAMMAD, H., NWAGU, B. I., ORUNMUYI, M., MUSA, A. A., OLUTUNMOGUN, A. K., & JOHNS, S. A. (2024). EFFECT OF CARBONIC ANHYDRASE POLYMORPHISMS ON PERFORMANCE TRAITS IN INDIGENOUS CHICKEN GENOTYPES IN NIGERIA. Nigerian Journal of Animal Production, 902–905. https://doi.org/10.51791/njap.vi.7943

Numéro

2017: NSAP 2017 Proceedings

Rubrique

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