Morphological and physiological characteristics of claw quality in South African Bonsmara cattle

Show simple item record Van Marle-Koster, Este Pretorius, S.J. Webb, E.C. (Edward Cottington) 2020-09-04T11:02:17Z 2020-09-04T11:02:17Z 2019-12
dc.description.abstract Sound claws are essential for beef cattle, given the marked influence they have on functional longevity and subsequent performance. The aim of this study was to evaluate morphological and physiological claw characteristics of Bonsmara SA beef cattle in the major bioregions of South Africa. Normal claws of 89 Bonsmara stud animals were collected from three bioregions in which Bonsmara cattle are farmed, namely Mesic Highveld Grassland, Eastern Kalahari Bushveld and Central Bushveld bioregions. Most of these claws were from Bonsmara bulls that were slaughtered after completion of a standardized intensive feeding test and a few were from older cows. Lateral toe length (LL), medial toe length (ML), claw circumference, colour coding and tensile strength (TS) were determined on the fore and hind claws and mineral composition only on the fore claws. Multifactorial analysis of variance (ANOVA) models indicated that bioregion, moisture content, calcium (Ca), selenium (Se) and claw position (fore versus hind claws) had a significant effect (P <0.05) on TS. It is clear that environmental factors need to be considered in the evaluation of claw quality. This research serves as a benchmark for claw traits in the Bonsmara breed. Recording of claw and conformation traits is essential for genetic improvement. en_ZA
dc.description.department Animal and Wildlife Sciences en_ZA
dc.description.sponsorship The South African Bonsmara Breeders Society and the National Research Foundation. en_ZA
dc.description.uri en_ZA
dc.identifier.citation Van Marle-Kӧster, E., Pretorius, S.J. & Webb, E.C. 2019, 'Morphological and physiological characteristics of claw quality in South African Bonsmara cattle', South African Journal of Animal Science, vol. 49, no. 5, pp. 964-974. en_ZA
dc.identifier.issn 0375-1589 (print
dc.identifier.issn 2221-4062 (online)
dc.identifier.other 10.4314/sajas.v49i5.20
dc.language.iso en en_ZA
dc.publisher South African Society for Animal Science (SASAS) en_ZA
dc.rights © Copyright resides with the authors in terms of the Creative Commons Attribution 4.0 South African Licence. en_ZA
dc.subject Bioregion en_ZA
dc.subject Claw parameters en_ZA
dc.subject Colour en_ZA
dc.subject Lateral and medial claw length en_ZA
dc.subject Mineral composition en_ZA
dc.subject Tensile strength en_ZA
dc.subject Bonsmara cattle
dc.title Morphological and physiological characteristics of claw quality in South African Bonsmara cattle en_ZA
dc.type Article en_ZA

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