<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>From July to November 2019, a study has been carried out in the locality of Ngaoundéré in order to contribute to a better knowledge of exotic hens. For this purpose, 190 improved strain chicks of one day-old with an average weight of 35.49±3.78g were distributed according to the type of feather. They were fed an iso-energetic and iso-proteic feed. Data on phenotype characteristics, growth performance, biometric data and carcass were determined. The main results show that three types of feathering were recorded with 16.4% of hens with bare necks and with feathered pits, 78.1% of hens with feathered pits and 5.5% of hens with normal feathers. The majority of hens were recorded with a single comb (75.3%), round mumps (71.2%), white pits (76.4%), black beaks (47.9%) and brown eyes (75.3%). In terms of zootechnical performance, the highest live weight (1758.00±322.20g) was recorded with naked-necked hens and feathered pits. The highest weekly average weight gain was recorded with yellow eyed hens (111.77±16.63g) followed by bare-necked and feathered pits (107.83±20.06g). Hens expressing the Na and Pti genes showed the best growth performance although carcass yield was not significantly affected by feather type. It was concluded that there is a very high phenotypic diversity in the so-called improved hens. However, despite their great potential, responsible management of this genetic resource should be encouraged in order to avoid genetic erosion of local poultry resources.</p>
</abstract>

From July to November 2019, a study has been carried out in the locality of Ngaoundéré in order to contribute to a better knowledge of exotic hens. For this purpose, 190 improved strain chicks of one day-old with an average weight of 35.49±3.78g were distributed according to the type of feather. They were fed an iso-energetic and iso-proteic feed. Data on phenotype characteristics, growth performance, biometric data and carcass were determined. The main results show that three types of feathering were recorded with 16.4% of hens with bare necks and with feathered pits, 78.1% of hens with feathered pits and 5.5% of hens with normal feathers. The majority of hens were recorded with a single comb (75.3%), round mumps (71.2%), white pits (76.4%), black beaks (47.9%) and brown eyes (75.3%). In terms of zootechnical performance, the highest live weight (1758.00±322.20g) was recorded with naked-necked hens and feathered pits. The highest weekly average weight gain was recorded with yellow eyed hens (111.77±16.63g) followed by bare-necked and feathered pits (107.83±20.06g). Hens expressing the Na and Pti genes showed the best growth performance although carcass yield was not significantly affected by feather type. It was concluded that there is a very high phenotypic diversity in the so-called improved hens. However, despite their great potential, responsible management of this genetic resource should be encouraged in order to avoid genetic erosion of local poultry resources.

Morphobiometry and Growth Performances of Improved Genetic Types of Chickens (Gallus Gallus) Raised in Cameroon

Department of Biological Sciences, Faculty of Sciences

University of Agricultural Sciences and Veterinary Medicine Iaşi

Banat University of Agricultural Science and Veterinary Medicine

Bioenginering Faculty of Animal Resources

Advanced Research in Life Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

From July to November 2019, a study has been carried out in the locality of Ngaoundéré in order to contribute to a better knowledge of exotic hens. For this...

Morphobiometry and Growth Performances of Improved Genetic Types of Chickens (Gallus Gallus) Raised in Cameroon

Publié en ligne: 30 sept. 2021

Pages: 48 - 54

Reçu: 01 mai 2021

Accepté: 01 sept. 2021

DOI: https://doi.org/10.2478/arls-2021-0029

Mots clés
chickens, phenotype, morphology, biometry, growth characteristics

© 2021 Francois Djitie Kouatcho et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Morphobiometry and Growth Performances of Improved Genetic Types of Chickens (Gallus Gallus) Raised in Cameroon

Publié en ligne: 30 sept. 2021

Pages: 48 - 54

Reçu: 01 mai 2021

Accepté: 01 sept. 2021

DOI: https://doi.org/10.2478/arls-2021-0029

Mots cléschickens, phenotype, morphology, biometry, growth characteristics

© 2021 Francois Djitie Kouatcho et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
chickens, phenotype, morphology, biometry, growth characteristics