Testing of different strains of friesian cattle in Poland. III. Milk performance of the strain backcrosses under intensive feeding conditions

Jasiorowski, H.; Reklewski, Z.; Stolzman, M.; Grabowski, R.; Łukaszewicz, M.

doi:10.1016/0301-6226(88)90001-2

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…From 1961 to 1978 India had imported 1,470 bulls and 6,165 females of exotic breeds of which 275 bulls and 1,825 females were of Friesian and HF strains while most of the others were Jersey. More than 23 farms of HF breed together contribute to the semen-freezing network, the majority of which have been established under the Operation Flood program in cooperation with the National Dairy Development Board and with assistance from the Governments of Australia, Canada, Denmark, New Zealand, Switzerland, UK and USA (Jasiorowski et al, 1988). The present work is of importance being a field study specific to breeding bulls meant for AI and for providing genotype profile for an economically important trait.…”

Section: Resultsmentioning

confidence: 99%

Genotype Profiles for the Quantitative Trait Related to Milk Composition in Bulls Used for Artificial Insemination in India

Mukhopadhyaya¹,

Mehta²

2002

Asian Australas. J. Anim. Sci

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A population of exotic Holstein Friesian, Jersey, their crossbreds and the indigenous Murrah breed of buffalo bulls (n=486), used in artificial insemination breeding program were screened for the allelic distribution of the κ-casein and β-lactoglobulin genotypes. The preferred "B" allele frequency was highest in Murrah buffalo bulls followed by Jersey and Holstein Friesian. The increase in this particular allele frequency in the Holstein Friesian crossbred bulls was more when compared to their Jersey counterparts. Hardy-Weinberg's equilibrium was maintained albeit with some deviations, which was higher in crossbreds than in purebreds. The feasibility of using such large-scale molecular diagnostic tools in the field and their significance with regards to the dairy economy is discussed.

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Section: Resultsmentioning

confidence: 99%

Genotype Profiles for the Quantitative Trait Related to Milk Composition in Bulls Used for Artificial Insemination in India

Mukhopadhyaya¹,

Mehta²

2002

Asian Australas. J. Anim. Sci

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Comparison of ten friesian strains in poland under field conditions. I. Strain comparison for growth rate

Stolzman

Jasiorowski

Reklewski

et al. 1988

Livestock Production Science

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The effect of United States versus New Zealand Angus germplasm on characteristics of crossbred calves

Wh²

1993

Journal of Animal Science

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Blood selenium concentration at birth and growth from birth through finishing were analyzed on progeny from two birth years of Angus bulls of United States (US) or New Zealand (NZ) origin. Dams of the calves were Polled Hereford x Angus crossbreds whose sires had been selected divergently from the national sire summary to be superior (+) or inferior (-) for yearling weight EPD (G) and for total maternal effects (M) on weaning weight. There was no evidence of differences attributable to calf paternity or dam genetic group in concentration of blood selenium in calves at birth. For birth year 1988, progeny of US sires grew nonsignificantly more rapidly than progeny of NZ sires in most life-cycle phases. In 1989 calves, NZ-sired offspring grew nonsignificantly more rapidly than US-sired offspring through a year of age. Averaged across years, preweaning and postweaning growth rates were similar for calves of US and NZ paternity. Divergent selection of the calves' maternal grandsires for yearling weight EPD was successful; calves in +G groups had more rapid gains through 1 yr of age than did calves in -G groups. Also, growth rate through 4.5 mo of age was influenced by divergent selection of maternal grandsires on total maternal weaning weight EPD; calves from +M groups gained more rapidly than calves from -M groups.

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Testing of different strains of friesian cattle in Poland. III. Milk performance of the strain backcrosses under intensive feeding conditions

Cited by 4 publications

References 7 publications

Genotype Profiles for the Quantitative Trait Related to Milk Composition in Bulls Used for Artificial Insemination in India

Genotype Profiles for the Quantitative Trait Related to Milk Composition in Bulls Used for Artificial Insemination in India

Comparison of ten friesian strains in poland under field conditions. I. Strain comparison for growth rate

The effect of United States versus New Zealand Angus germplasm on characteristics of crossbred calves

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