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Título: Preliminary study of average milking speed for the first calving cows in Simmental and Holstein breed
Autor: Ivkic, Zdenko
Mijic, P
Bulic, Vesna
Solic, V
Cadavez, Vasco
Palavras-chave: Cattle
Milking speed
Issue Date: 2009
Citação: Ivkic, Zdenko; Mijic, P; Bulic, Vesna; Solic, V; Cadavez, Vasco (2009) - Preliminary study of average milking speed for the first calving cows in simmental and holstein breed. In 44th Croatian & 4th International Symposium on Agriculture. Opatija, p. 738-741. ISBN 978-953-6331-67-3
Resumo: Mastitis is a significant disease in cattle production In order to reduce mastitis, special attention in Cattle Breeding program in Croatia has given to average milking speed (AMS). It is necessarily to achieve maximum milking speed as soon as possible and to keep it during longer period. This gives opportunity to select the animals with no extreme values of milking speed, i.e. animals with average milking speed. The objective of this study was to determine the average milking speed for first calving cows of Simmental and Holstein cattle in Croatia, and to define the environmental effects affecting this trait as well. Data consisted of 7155 test-day records of 4341 cows. Similar values of AMS mean was found for Simmental (1.56 kg/min) and Holstein breed (1.57 kg/min). The following fixed effects were tested in the model for AMS: year of calving, month of test-day control and stage of lactation, and did not show statistically significant effect. Correlations between AMS and milk traits were low.
Arbitragem científica: yes
ISBN: 978-953-6331-67-3
Versão do Editor:
Appears in Collections:CA - Artigos em Proceedings Não Indexados ao ISI/Scopus

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