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Journal Article 1966

Production records of lambs from East African Blackhead ewes and Dorset Horn rams

Autor: Trail, J.C.M. Sacker, G.D.

Dorset Horn rams were used on East African Blackhead sheep in western Uganda in mutton production through improved lamb growth. The crossbred lambs were significantly heavier than the indigenous at birth. From birth to weaning at five months, the growth rates of both types were identical, being 0...

Enlace original: https://cgspace.cgiar.org/handle/10568/66830

Investigación en Agricultura

SHEEP

BREEDS

EWES

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Trail, J.C.M. , Sacker, G.D. , [Production records of lambs from East African Blackhead ewes and Dorset Horn rams] , Production records of lambs from East African Blackhead ewes and Dorset Horn rams

Journal Article 1984

Crossbreeding cattle in beef production programmes in Kenya. I. Comparison of purebred Boran and Boran crossed with the Charolais, Ayrshire and Santa Gertrudis breeds

Autor: Gregory, K.E. Trail, J.C.M. Sandford, J. Durkin, J.W.

Presented data on maternal traits, i.e.Age at first calving, calving interval, calf weaning weight and cow productivity index, of pure Boran and Boran crossbred w. each of Charolais, Ayrshire and Santa Gertrudis on privately owned ranches in Machakos District, Kenya.

Enlace original: https://cgspace.cgiar.org/handle/10568/29735

Investigación en Agricultura

PURE LINES

CROSSBREDS

ANIMAL PERFORMANCE

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Gregory, K.E. , Trail, J.C.M. , Sandford, J. , Durkin, J.W. , [Crossbreeding cattle in beef production programmes in Kenya. I. Comparison of purebred Boran and Boran crossed with the Charolais, Ayrshire and Santa Gertrudis breeds] , Crossbreeding cattle in beef production programmes in Kenya. I. Comparison of purebred Boran and Boran crossed with the Charolais, Ayrshire and Santa Gertrudis breeds

Journal Article 1988

Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 2. Productivity of crossbred cows and heterosis estimates

Autor: Tawonezvi, H.P.R. Ward, H.K. Trail, J.C.M. Light, D.E.

Assesses reproductive performance, body weight & live weight, pre-weaning growth, and viability of progeny sired by various unrelated breeds which are representative of the Sanga X Sanga, Sanga X Zebu, Bos taurus X Sanga, Bos taurus X Zebu, and Bos taurus X Bos taurus crossbred groups. Measures t...

Enlace original: https://cgspace.cgiar.org/handle/10568/28277

Investigación en Agricultura

BEEF CATTLE

COWS

CATTLE BREEDS

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Tawonezvi, H.P.R. , Ward, H.K. , Trail, J.C.M. , Light, D.E. , [Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 2. Productivity of crossbred cows and heterosis estimates] , Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 2. Productivity of crossbred cows and heterosis estimates

Journal Article 1988

Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 1. Productivity of purebred cows

Autor: Tawonezvi, H.P.R. Ward, H.K. Trail, J.C.M. Light, D.E.

A study conducted to assess weaner production of the indigenous and exotic breeds in Zimbabwe and crossbred cows.

Enlace original: https://cgspace.cgiar.org/handle/10568/28276

Investigación en Agricultura

BEEF CATTLE

CATTLE BREEDS

RANGELANDS

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Tawonezvi, H.P.R. , Ward, H.K. , Trail, J.C.M. , Light, D.E. , [Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 1. Productivity of purebred cows] , Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 1. Productivity of purebred cows

Journal Article 1982

Production characters of the Sahiwal and Ayrshire breeds and their crosses in Kenya

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

Presents comparative data on reproductive and productive performances of cows of pure Ayrshire and Sahiwal breeds or their reciprocal crosses and their progeny w. Ayrshire, Sahiwal, Simmental and mixed breed bulls in the lower to mid-potential temperate highland zone of Kenya; with particular ref...

Enlace original: https://cgspace.cgiar.org/handle/10568/29734

Investigación en Agricultura

SAHIWAL CATTLE

AYRSHIRE CATTLE

PRODUCTIVITY

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Trail, J.C.M. , Gregory, K.E. , [Production characters of the Sahiwal and Ayrshire breeds and their crosses in Kenya] , Production characters of the Sahiwal and Ayrshire breeds and their crosses in Kenya

Journal Article 1963

Meat production from indigenous, crossbred and imported poultry in Uganda

Autor: Trail, J.C.M.

Nine hundred cockerels of indigenous Light Sussex X indigenous, Rhode island red X indigenous, Black Australorp X indigenous, white Leghorn X indigenous and three pure imported breeds were reared from day old to 5 months of age, and growth rates, food consumption, feed conversion, killing out per...

Enlace original: https://cgspace.cgiar.org/handle/10568/67014

Investigación en Agricultura

POULTRY

FEEDS

CHICKENS

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Trail, J.C.M. , [Meat production from indigenous, crossbred and imported poultry in Uganda] , Meat production from indigenous, crossbred and imported poultry in Uganda

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Resultados de búsqueda

Production records of lambs from East African Blackhead ewes and Dorset Horn rams

Crossbreeding cattle in beef production programmes in Kenya. I. Comparison of purebred Boran and Boran crossed with the Charolais, Ayrshire and Santa Gertrudis breeds

Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 2. Productivity of crossbred cows and heterosis estimates

Evaluation of beef breeds for rangeland weaner production in Zimbabwe. 1. Productivity of purebred cows

Production characters of the Sahiwal and Ayrshire breeds and their crosses in Kenya

Meat production from indigenous, crossbred and imported poultry in Uganda