Teat anatomy and its relationship with quarter and udder milk flow characteristics in dairy cows

Journal of Dairy Science
D WeissRupert M Bruckmaier

Abstract

Anatomical and functional characteristics of the teat are supposed to have considerable influence on milk flow performance. In the present study, various teat and milking characteristics in 148 quarters of 38 cows were analyzed via 3 different approaches. Teat canal length, teat wall thickness, and teat diameter were measured by ultrasound. In addition, the vacuum needed to open the teat canal (VO) was determined and milk flow profiles were measured in each quarter separately. Rear teats were shorter and thicker than front teats, whereas teat canal length and teat wall thickness did not differ according to quarter position. Milk yield and peak flow rate (PFR) were higher in rear than in front quarters. Teat canal length and VO were negatively correlated with PFR and average flow rate (AFR) but no correlations were observed between milkability traits and externally measurable teat characteristics like teat length or teat diameter. Individual milkability at an udder level is a complex characteristic that is determined by the milkability at a quarter level and the distribution of quarter milk yields. The anatomical and functional characteristics of single teats can partly explain the milk flow characteristics of individual quarters.

References

Nov 1, 1991·The Journal of Dairy Research·R J GrindalJ E Hillerton
Dec 1, 1991·Journal of Dairy Science·G W Rogers, S B Spencer
Aug 1, 1987·The Journal of Dairy Research·D M Williams, G A Mein
May 1, 1986·The Journal of Dairy Research·D M Williams, G A Mein
Dec 1, 1982·Journal of Dairy Science·A Lefcourt
Jan 30, 2002·Journal of Dairy Science·F NeijenhuisH Hogeveen

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Citations

Mar 13, 2008·Breastfeeding Medicine : the Official Journal of the Academy of Breastfeeding Medicine·Jacqueline C KentPeter E Hartmann
Mar 14, 2014·The Journal of Dairy Research·Moufida AtiguiPierre-Guy Marnet
Aug 25, 2012·Journal of Dairy Science·I ZwertvaegherS De Vliegher
Nov 21, 2017·Journal of Dairy Science·R Michael Akers
Aug 3, 2018·The Journal of Dairy Research·Gagandeep KaurShukriti Sharma
Jan 12, 2010·Journal of Dairy Science·C J Belo, R M Bruckmaier
Apr 14, 2007·Journal of Dairy Science·V TancinP Hogewerf
Jan 20, 2007·Journal of Dairy Science·M RovaiR M Bruckmaier
Sep 30, 2009·The Journal of Dairy Research·Alberto TamburiniAnna Sandrucci
Sep 21, 2017·The Journal of Dairy Research·Anna-Lena NeuheuserRupert M Bruckmaier
Sep 9, 2010·The Journal of Dairy Research·Sarah AmbordRupert M Bruckmaier
May 1, 2016·Tropical Animal Health and Production·Moufida AtiguiMohamed Hammadi
Jun 29, 2013·The Journal of Dairy Research·Sally-Anne TurnerJ Eric Hillerton
Mar 2, 2006·Journal of Dairy Science·V TancinJ Macuhová
Aug 23, 2017·Scientific Reports·Patrick Gasqui, Jean-Marie Trommenschlager
Jan 15, 2019·Journal of Dairy Science·J M MelvinM Wieland
Mar 3, 2009·The Journal of Dairy Research·Sarah Ambord, Rupert M Bruckmaier
Aug 28, 2020·Frontiers in Veterinary Science·Carlo BoselliAntonio Borghese
Nov 12, 2020·Animals : an Open Access Journal From MDPI·Marian KuczajEwa Czerniawska-Piątkowska
Feb 28, 2021·Animal : an International Journal of Animal Bioscience·D MeyerE Hartung
May 25, 2021·Journal of Dairy Science·Claudia StaufferRupert M Bruckmaier

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