IDEAS home Printed from https://ideas.repec.org/a/caa/jnlcjs/v53y2008i2id333-cjas.html
   My bibliography  Save this article

Effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling in East Friesian ewes

Author

Listed:
  • J. Kuchtík

    (Department of Animal Breeding, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic)

  • K. Šustová

    (Department of Food Technology, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic)

  • T. Urban

    (Department of Animal Morphology, Physiology and Genetics, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic)

  • D. Zapletal

    (Department of Nutrition, Animal Husbandry and Animal Hygiene, University of Veterinary and Pharmaceutical Sciences in Brno, Brno, Czech Republic)

Abstract

The evaluation of the effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling was carried out over the period of three successive years using milk samples (n = 162) obtained from a total of 27 ewes of the East Friesian (EF) breed, reared on a small sheep farm in Juřinka in the region of Wallachia. The stage of lactation had a highly significant effect on the contents of all milk components. However, only the contents of total solids (TS), solids non-fat (SNF), fat (F), protein (P) and casein (CN) gradually increased with the advancement of lactation. The stage of lactation also had a highly significant effect both on all the properties of milk and the rennet curdling quality (RCQ). All phenotypic correlations between the particular contents of TS, SNF, F, P, CN and urea nitrogen (UN) were positive and high (P ≤ 0.001). On the other hand, all phenotypic correlations between milk yield and particular contents of TS, SNF, F, P, CN and UN were negative and high (P ≤ 0.001). The majority of phenotypic correlations between rennet clotting time (RCT) and the other particular parameters was insignificant. However, the phenotypic correlations between lactose (L) and RCT and between pH and RCT were positive and high (P ≤ 0.001) whereas the phenotypic correlation between titratable acidity (TA) and RCT was negative and high (P ≤ 0.001). The majority of phenotypic correlations between the rennet curdling quality (RCQ) and the other particular parameters was insignificant. Nevertheless, the phenotypic correlations between pH and RCQ and between RCT and RCQ were positive and high (P ≤ 0.001) whereas the phenotypic correlation between TA and RCQ was negative and high (P ≤ 0.001).

Suggested Citation

  • J. Kuchtík & K. Šustová & T. Urban & D. Zapletal, 2008. "Effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling in East Friesian ewes," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(2), pages 55-63.
  • Handle: RePEc:caa:jnlcjs:v:53:y:2008:i:2:id:333-cjas
    DOI: 10.17221/333-CJAS
    as

    Download full text from publisher

    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/333-CJAS.html
    Download Restriction: free of charge

    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/333-CJAS.pdf
    Download Restriction: free of charge

    File URL: https://libkey.io/10.17221/333-CJAS?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. A. Komprej & G. Gorjanc & D. Kompan & M. Kovač, 2012. "Lactation curves for milk yield, fat and protein content in Slovenian dairy sheep," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(5), pages 231-239.
    2. A. Hejtmánková & V. Pivec & E. Trnková & H. Dragounová, 2012. "Differences in the composition of total and whey proteins in goat and ewe milk and their changes throughout the lactation period," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 57(7), pages 323-331.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnlcjs:v:53:y:2008:i:2:id:333-cjas. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.