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Animal Genetic Resources Information = Bulletin de information sur les ressources génétiques animales = Boletín de información sobre recursos genéticos animales | 2011

Productivity and morphology of Ankole cattle in three livestock production systems in Uganda

Donald R. Kugonza; M. Nabasirye; Denis Mpairwe; Olivier Hanotte; Am Okeyo

La caracterizacion fenotipica tiene una importancia fundamental en la mejora y conservacion de razas. Se han estudiado 248 explotaciones en Uganda para determinar el rendimiento y las caracteristicas morfologicas del ganado Ankole en tres sistemas de produccion (LPS, por sus siglas en ingles) de Uganda. Se han medido en 120 toros y 180 vacas la alzada a la cruz (HW, por sus siglas en ingles), perimetro toracico (HW, por sus siglas en ingles), diametro longitudinal (BL, por sus siglas en ingles), longitud de la oreja (EL, por sus siglas en ingles), longitud del cuerno (HL, por sus siglas en ingles), distancia entre las puntas de los cuernos (HS, por sus siglas en ingles) y el peso corporal (BW, por sus siglas en ingles). Los datos han sido analizados utilizando LPS (pastos para el ganado, agropastoral, pastoral), el condado (Gomba, Kazo, Kiboga, Mawoggola, Nyabushozi) y el sexo (hembras y machos) como factores principales. En los resultados, la edad de madurez sexual (ASM, por sus siglas en ingles) fue de 23.6 ± 0.5 meses para los toros y de 22.7 ± 0.5 para las vacas. La edad para el primer parto (AFC, por sus siglas en ingles) fue de 33.2 ± 0.5 meses, mientras que el intervalo entre partos (CI, por sus siglas en ingles) fue de 12.9 ± 0.8 meses. La duracion de la lactacion (LL, por sus siglas en ingles) difirio entre LPS (5.5 ± 0.4, 6.3 ± 0.3 y 7.4 ± 0.2 meses en agropastoral, pastos para el ganado y pastoral, respectivamente). La produccion media de leche fue de 2.2 ± 0.1 kg/vaca mientras que la supervivencia antes del destete fue de 90.0 ± 6.5%. El sexo y LPS influyo significativamente en HW, HL y HS. Se observaron correlaciones positivas entre BW y HG, BL y HL. Los coeficientes de correlacion fueron mucho mas bajos en las hembras que en los machos, excepto en BW vs HG y BW vs HW. Los resultados muestran grandes variaciones entre rendimiento y morfologia, sugiriendo que dentro del plan de seleccion racial y/o de gestion puede conllevar mejora sustancial en el campo de la productividad.


Tropical Animal Health and Production | 2012

Pastoralists' indigenous selection criteria and other breeding practices of the long-horned Ankole cattle in Uganda.

Donald R. Kugonza; Margaret Nabasirye; Olivier Hanotte; Denis Mpairwe; A. Mwai Okeyo

The criteria for identification, selection and kinship assignment of Ankole cattle and their roles to pastoralists were studied on 248 farms in Kiboga, Mbarara, Mpigi and Sembabule districts of Uganda using a questionnaire, administered during one-to-one interviews. Farms were randomly sampled along transects originating from the headquarters of each of the 19 sub-counties studied. We found that male Ankole cattle are reared for income from sales, meat for home use and ceremonies, aesthetic value and to maintain cultural heritage. Female cattle are mainly kept for milk production, income from sales, heritage and aesthetics, and in few cases, for home use as meat. Other functions included savings, manure and butter production. All cattle are named at birth with coat colour or pattern being the main identification criterion; hence, it is also useful in assigning kinship. Selection criteria for males are more stringent than for females. On most farms, all females are kept for further breeding and are only culled in cases of poor reproductive health. Primary emphasis in selecting males is on the performance of ancestors in milk and reproductive traits, and then on the qualities of the bull itself. Bulls are selected mainly focusing on a big body frame and size, horns that are white, large and curved upward and a plain dark red “ruhogo” coat colour. The results of this study show that pastoralists have a rich body of indigenous knowledge on this breed, and this should effectively be incorporated into planned selective improvement schemes of the Ankole cattle breed.


Livestock research for rural development | 2010

Factors influencing the trade of local chickens in Kampala city markets.

Nathan Emuron; Henry Magala; Florence B. Kyazze; Donald R. Kugonza; Connie C. Kyarisiima


Livestock Science | 2011

Genetic diversity and differentiation of Ankole cattle populations in Uganda inferred from microsatellite data

Donald R. Kugonza; Han Jianlin; M. Nabasirye; Denis Mpairwe; G.H. Kiwuwa; Am Okeyo; Olivier Hanotte


Archive | 2004

Indigenous chicken flocks of Eastern Uganda: I. productivity, management and strategies for better performance

Donald R. Kugonza; Connie C. Kyarisiima; Augustine Iisa


Uganda Journal | 2004

The potential role of the Ugandan indigenous chicken in poverty alleviation

Connie C. Kyarisiima; Donald R. Kugonza; C. K. Twesigye


Journal of Animal Breeding and Genetics | 2012

Accuracy of pastoralists’ memory‐based kinship assignment of Ankole cattle: a microsatellite DNA analysis

Donald R. Kugonza; G.H. Kiwuwa; Denis Mpairwe; Han Jianlin; M. Nabasirye; Am Okeyo; Olivier Hanotte


Tropical Animal Health and Production | 2013

Performance of growing pigs fed diets based on by-products of maize and wheat processing

Robert Mwesigwa; David Mutetikka; Donald R. Kugonza


Agricultural Journal | 2010

Comparison of breeding systems by smallholder goat keepers in the humid, sub-humid and semi arid ecological zones of Uganda.

Jimmy Semakula; David Mutetikka; Donald R. Kugonza; Denis Mpairwe


South African Journal of Animal Science | 2006

Weaning strategies to improve the performance of sows and their progeny under smallholder farming conditions

Donald R. Kugonza; David Mutetikka

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Am Okeyo

International Livestock Research Institute

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Han Jianlin

International Livestock Research Institute

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