Canonical Analysis for Assessment of Genetic Diversity of Three Indigenous Chicken Ecotypesin North Gondar Zone, Ethiopia
الموضوعات :A. Getu 1 , K. Alemayehu 2 , Z. Wuletaw 3
1 - Ebinat District Agricultural Development Office, Amahara, Ethiopia
2 - Department of Animal Production and Technology, Bahir Dar University, College of Agriculture and Environmental Science, Bihar Dar, Ethiopia
3 - Sustainable Land Management Organization, Bihar Dar, Ethiopia
الکلمات المفتاحية: discriminant analysis, Morphological traits, local birds, variance estimation,
ملخص المقالة :
Rapid exploratory field survey, to identify indigenous chicken ecotypes was conducted in north Gondar zone of Ethiopia. Chicken ecotypes including Necked neck, Gasgie and Gugut from Quara, Alefa and Tache Armacheho districts were identified, respectively. Morphological variations among the three study populations and nine measurable traits were evaluated. General linear model, canonical discriminate and stepwise analyses were applied for assessing variability among the study populations. Necked neck and Gasgie ecotypes were heavier and had wider linear traits than the rest, while most of the study traits for the Gugut ecotype were the lowest. The most important variables for discriminating between the three populations were shank length, keel length, wingspan and beak length with canonical discriminant functionscore of0.897, 0.752, 0.449 and0.433, respectively. The greatest distance value was between Gasgie and Necked neck ecotype while the least one was between Gugut and Necked neck. The discriminate analysis therefore classified the three populations to be distinct clusters. The morphological traits studied have proved to be useful in genetic characterization of indigenous chickens and can thus be useful in developing strategies for conservation of the genetic diversity.
Al Atiyat R. (2009). Diversity of chicken populations in Jordan determined using discriminate analysis of performance traits. Int. J. Agric. Biol. 11, 374-380.
AADO. (2011). Alefa Agricultural Development Office. north Gondar zone, Ethiopia.
Besbes B. (2009). Genotype evaluation and breeding of poultry for performance under subop timal village conditions. World’s Poult. Sci. J. 65, 260-271.
CSA. (2011). Agricultural Sample survey 2010/11,2: statistical bulletin 505. Report on livestock and livestock characteristics (prevent peasant holdings), Addis Ababa, February 2011.21.
FAO. (2010). Food and Agriculture Organization of the United Nations the State of Food Insecurity in the World.
FAO. (2011). Food and Agriculture Organization of the United Nations the State of Food Insecurity in the World.
Fisseha M., Abera M. and Tadelle D. (2010). Assessment of village chicken production system and evaluation of the productive and reproductive performance local chicken ecotype in Bure district, northwest Ethiopia. African J. Agric. Res. 5(13), 1739-1748.
Halima H. (2007). Phonotypic and genetic characterization of indigenous chicken populations in northwest Ethiopia. Ph D. Thesis. Univ. Free State, Bloemfontein, South Africa.
Hauser L., Carvalho G.R. and Pitcher T.J. (1995). Morphological and genetic differentiation of the Africa clupeid Limnothrisssa miodun 34 years after introduction to Lake Kivu. J. Biogeogr. 28, 831-841.
Jens Christian R., Anders P., Charlotte V., Ainsh M.C. and Lone F. (2004). Keeping Village Poultry a Technical Manual for Small Scale Poultry Production. Copenhagen, Denmark.
Kondombo S.R. (2005). Improvement of village chicken production in a mixed farming system in Burkina Faso. Ph D. Thesis. Wageningen Univ., Netherlands.
Loos B.P. (1993). Morphological variation in Lolium (Poaceae) as a measure of species relationships.Plant Syst. Evol. 188, 87-99.
Ogah D.M., Alaga A.A. and Momoh O.M. (2009). Principal component analysis of the morph structural traits of muscovy duck. Int. J. Poult. Sci. 8(11), 1100-1103.
QADO. (2010). Quara Agricultural Development Office. north Gondar zone, Ethiopia.
Riggs T.J. (1973). The use of canonical analysis for selection within a Press Inc., New York. Cultivar of spring barley. Ann. Appl. Biol. 74, 249-258.
Rosario M.F., Silva M.A.N., Coelho A.A.D., Savino V.J.M. and Dias C.T.S. (2008). Canonical discriminant analysis applied to broiler chicken performance. Animal. 2, 419-429.
Salam K. (2005). Improvement of village chicken production in a mixed (chicken ram) farming system in Burkina Faso. Ph D. Thesis. Wageningen Univ., Netherlands.
SAS Institute. (1996). SAS®/STAT Software, Release 9.1, SAS Institute, Inc., Cary, NC.
Scott N.D. and Reynold R.P. (1984). Phenotypic variation of the Mexican duck in Mexico. Condor. 86, 266-274.
Tadelle D. and Alemu Y. (1997).Studies on village poultry production systems in the central highlands of Ethiopia. MS Thesis. Swedish Univ., Sweden.
Tadelle D., Alemu Y. and Peters K. (2003). Village chicken production systems in Ethiopia: use patterns and performance valuation and chicken products and socio-economic functions of chicken. Livest. Res. Rural Dev. 1(15). Availabl: fromhttp://www.lrrd.org/lrrd15/1/tadeb151.htm.aAccessed Sep. 2010.
TADO. (2011). Tache Armachiho Agricultural Development Office. north Gondar zone, Ethiopia.
