Nauka Przyroda Technologie

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Sylwia Bielińska-Nowak, Jacek Wójtowski, Piotr Ślósarz, Maria Markiewicz-Kęszycka
Relationship between teat morphology and level of sheep milk yield
Summary.

The aim of the study was to assess morphological changes in teats of sheep and changes in size of sheep udder, occurring as a reaction to subsequent lactation, stage of lactation and daily milk yield. Another aim of this study was to determine the usefulness of 10 MHz ultrasound linear probe in examination of changes in morphological structures of ewe teat. Investigations were conducted on 40 Polish dairy sheep line 05, sheep ranged in age from 1 to 9 years old (1 to 8 lactation). The width and length of teat, as well as its anatomical structures: the thickness of teat walls and length and diameter of teat canals, were measured on ultrasound images. Results were verified statistically taking into consideration: the daily milk yield, subsequent lactation (age of ewe) and the stage of lactation. The effect was found of subsequent lactation and increasing milk yield on the growth of the udder. The growth of the udder was accompanied by elongation of teats which were the longest in the second lactation. The experiment conducted in this study showed the limited usefulness of 10 MHz ultrasound linear probe in diagnostic and measurement of ewe teat.

Key words: sheep, ultrasonography, teat, udder, milk yield
PDFFull text available in Polish in Adobe Acrobat format:
http://www.npt.up-poznan.net/tom6/zeszyt4/art_68.pdf

For citation:

MLA Bielińska-Nowak, Sylwia, et al. "Budowa morfologiczna sutka owiec a poziom wydajności ich mleka." Nauka Przyr. Technol. 6.4 (2012): #68.
APA Sylwia Bielińska-Nowak1, Jacek Wójtowski1, Piotr Ślósarz1, Maria Markiewicz-Kęszycka2 (2012). Budowa morfologiczna sutka owiec a poziom wydajności ich mleka. Nauka Przyr. Technol. 6 (4), #68
ISO 690 BIELIńSKA-NOWAK, Sylwia, et al. Budowa morfologiczna sutka owiec a poziom wydajności ich mleka. Nauka Przyr. Technol., 2012, 6.4: #68.
Corresponding address:
Sylwia Bielińska-Nowak
Katedra Hodowli Małych Ssaków i Surowców Zwierzęcych
Uniwersytet Przyrodniczy w Poznaniu
Złotniki
ul. Słoneczna 1
62-002 Suchy Las
Poland
e-mail: silka@up.poznan.pl
Accepted for print: 31.05.2012