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Journal Article 1985

Heterosis and breed effects on maternal and individual traits of Bos indicus breeds of cattle

Autor: Gregory, K.E. Trail, J.C.M. Marples, H.J.S. Kakonge, J.

Presents results of a study conducted to estimate the effects of heterosis and breed on a series of maternal and individual traits; takes Boran X Ankole and Boran X Zebu as crossbred cows and Ankole, Boran and Small East African Zebu as straightbred cows; includes traits like calf crop born, prew...

Enlace original: https://cgspace.cgiar.org/handle/10568/32982

Investigación en Agricultura

ZEBU CATTLE

HUMPLESS CATTLE

BREEDS

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Gregory, K.E. , Trail, J.C.M. , Marples, H.J.S. , Kakonge, J. , [Heterosis and breed effects on maternal and individual traits of Bos indicus breeds of cattle] , Heterosis and breed effects on maternal and individual traits of Bos indicus breeds of cattle

Report 1984

Animal breeding in sub-Saharan Africa: Toward an integrated program for improving productivity

Autor: Trail, J.C.M. Gregory, K.E.

Describes the main ecological zones of Africa and mentions the importance of cattle in each zone, the production systems involved and the general types of cattle that can be maintained. Determines the value of previous breed productivity research in assessing current decision making.

Enlace original: https://cgspace.cgiar.org/handle/10568/50158

Investigación en Agricultura

ANIMAL BREEDING

CATTLE

ECOLOGICAL ZONATION

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Trail, J.C.M. , Gregory, K.E. , [Animal breeding in sub-Saharan Africa: Toward an integrated program for improving productivity] , Animal breeding in sub-Saharan Africa: Toward an integrated program for improving productivity

Journal Article 1982

Heterosis, additive maternal and additive direct effects on the Red Poll and Boran breeds of cattle

Autor: Trail, J.C.M. Gregory, K.E. Marples, H.J.S. Kakonge, J.

Presents results of an experiment conducted in southwestern Uganda to estimate heterosis, additive maternal and direct effects of the Red Poll and Boran breeds of cattle involved in a two-breed diallel design. Includes data on survival and growth traits from birth to an age of 30 months.

Enlace original: https://cgspace.cgiar.org/handle/10568/32981

Investigación en Agricultura

RED POLL CATTLE

HYBRID VIGOUR

GROWTH

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Trail, J.C.M. , Gregory, K.E. , Marples, H.J.S. , Kakonge, J. , [Heterosis, additive maternal and additive direct effects on the Red Poll and Boran breeds of cattle] , Heterosis, additive maternal and additive direct effects on the Red Poll and Boran breeds of cattle

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Heterosis and breed effects on maternal and individual traits of Bos indicus breeds of cattle

Animal breeding in sub-Saharan Africa: Toward an integrated program for improving productivity

Heterosis, additive maternal and additive direct effects on the Red Poll and Boran breeds of cattle