The influence of milking on the teat canal of dairy cows determined by ultrasonographic measurements

Peter Strapák, Eva Strapáková, Mária Rušinová and Iveta Szencziová
Additional contact information
Peter Strapák: Department of Animal Husbandry, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
Eva Strapáková: Department of Genetics and Breeding Biology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
Mária Rušinová: Department of Animal Husbandry, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
Iveta Szencziová: Ministry of Agriculture and Rural Development of the Slovak Republic, Bratislava, Slovak Republic

Czech Journal of Animal Science, 2017, vol. 62, issue 2, 75-81

Abstract: The effect of milking on the length and diameter of the teat canal during teat regeneration immediately after milking was evaluated. The practical measurements of the teat canal were performed on 70 Holstein cows using ultrasound Aloka Prosound device 2. A special "bath method" of the teat ultrasonographic scanning was used at set time intervals - before milking, immediately after milking, and 30, 60, 90, and 120 min after milking. Before milking, the average length of the teat canal was 10.67 mm and 9.3 mm and the teat canal diameter was 1.11 mm and 1.09 mm for front and rear teats, respectively. The average length of the front and rear teat canal significantly increased by about 20.5 and 32.9% and the front and rear teat canal diameter increased by 9.0 and 9.1% on average immediately after milking compared to values detected before milking. After 120 min of regeneration the teat canal was by 3.56 and 14.95% longer than before milking for front and rear teats, respectively. Prolongation of the teat canal was significantly affected by teat position. Based on the present results, the time period of 120 min is not sufficient for the complete regeneration of the teat canal length to the pre-milking values. On the other hand, we recorded total regeneration of the teat diameter within 120 min after milking. The initial values of the front and rear teat diameter were equal to those measurd 120 min after milking.

Keywords: ultrasonography; udder; teat regeneration; milking traits (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://cjas.agriculturejournals.cz/doi/10.17221/68/2015-CJAS.html (text/html)
http://cjas.agriculturejournals.cz/doi/10.17221/68/2015-CJAS.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:62:y:2017:i:2:id:68-2015-cjas

DOI: 10.17221/68/2015-CJAS

Access Statistics for this article

Czech Journal of Animal Science is currently edited by Bc. Michaela Polcarová

More articles in Czech Journal of Animal Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().