<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The objective of the present study was to compare the slaughter value of young bulls of two breeds included in the genetic resources conservation programme, namely Polish Black-White and White-backed with young Polish Holstein-Friesian (dairy type) and Limousin (beef type) bulls. This is the first study to evaluate the meat performance traits of White-backed cattle in several-centuries history of the breed in Poland. It was determined that populations of White-backed and Polish Black-and-White cattle represent the dual-purpose type desirable in the genetic resources conservation programme. The indices obtained for the analysed traits of slaughter value from young Polish Black-and-White and White-backed bulls were intermediate between Polish Holstein-Friesian (dairy type) and Limousin (beef type), but closer to those of the Polish Holstein-Friesian breed. The analysed muscles of young bulls had a very similar content of basic chemical components. The relatively high amount of proteins (22.85-23.23%) in <italic>musculus longissimus lumborum</italic> and in <italic>musculus semintendinosus</italic> (22.43-23.06%) should be emphasized.</p></abstract>

The objective of the present study was to compare the slaughter value of young bulls of two breeds included in the genetic resources conservation programme, namely Polish Black-White and White-backed with young Polish Holstein-Friesian (dairy type) and Limousin (beef type) bulls. This is the first study to evaluate the meat performance traits of White-backed cattle in several-centuries history of the breed in Poland. It was determined that populations of White-backed and Polish Black-and-White cattle represent the dual-purpose type desirable in the genetic resources conservation programme. The indices obtained for the analysed traits of slaughter value from young Polish Black-and-White and White-backed bulls were intermediate between Polish Holstein-Friesian (dairy type) and Limousin (beef type), but closer to those of the Polish Holstein-Friesian breed. The analysed muscles of young bulls had a very similar content of basic chemical components. The relatively high amount of proteins (22.85-23.23%) in musculus longissimus lumborum and in musculus semintendinosus (22.43-23.06%) should be emphasized.

Slaughter Value of Young Polish Black-and-White, White-Backed, Polish Holstein-Friesian and Limousin Bulls Under Semi-Intensive Fattening

Department of Breeding and Protection of Genetic Resources of Cattle, University of Life Sciences, Akademicka 13, 20-950 Lublin, Poland

Department of Commodity Science and Processing of Raw Animal Materials, University of Life Sciences, Akademicka 13, 20-950 Lublin, Poland

Annals of Animal Science

The objective of the present study was to compare the slaughter value of young bulls of two breeds included in the genetic resources conservation programme,...

Slaughter Value of Young Polish Black-and-White, White-Backed, Polish Holstein-Friesian and Limousin Bulls Under Semi-Intensive Fattening

Data publikacji: 20 kwi 2012

Zakres stron: 159 - 168

DOI: https://doi.org/10.2478/v10220-012-0013-7

Słowa kluczowe
young bulls, slaughter value, cattle breeds

This content is open access.

Slaughter Value of Young Polish Black-and-White, White-Backed, Polish Holstein-Friesian and Limousin Bulls Under Semi-Intensive Fattening

Data publikacji: 20 kwi 2012

Zakres stron: 159 - 168

DOI: https://doi.org/10.2478/v10220-012-0013-7

Słowa kluczoweyoung bulls, slaughter value, cattle breeds

This content is open access.

Słowa kluczowe
young bulls, slaughter value, cattle breeds