IDEAS home Printed from https://ideas.repec.org/a/caa/jnlcjs/v52y2007i12id2334-cjas.html
   My bibliography  Save this article

Effects of different dietary threonine levels on growth and slaughter performance in finishing pigs

Author

Listed:
  • C. Plitzner

    (Department of Food Science and Technology, Division of Animal Food and Nutrition, University of Natural Resources and Applied Life Sciences, Vienna, Austria)

  • T. Ettle

    (Department of Food Science and Technology, Division of Animal Food and Nutrition, University of Natural Resources and Applied Life Sciences, Vienna, Austria)

  • S. Handl

    (Department of Veterinary Public Health and Food Science, Institute of Nutrition, University of Veterinary Medicine, Vienna, Austria)

  • P. Schmidt

    (Department of Pathobiology, Institute of Pathology and Forensic Veterinary Medicine, University of Veterinary Medicine, Vienna, Austria)

  • W. Windisch

    (Department of Food Science and Technology, Division of Animal Food and Nutrition, University of Natural Resources and Applied Life Sciences, Vienna, Austria)

Abstract

The objective of this study was to determine the threonine (Thr) requirement of a modern crossbred growing pig from Austria in the finisher stage (67 to 113 kg body weight). For on average 50 days, 30 castrated male and 30 female pigs were fed isonitrogenous diets (135 g/kg crude protein, 8.0 g/kg lysine) supplemented with increasing levels of crystalline Thr. Total dietary Thr contents (g/kg) were 4.9 (basal diet), 5.0, 5.4, 5.8, 6.1, 6.5, corresponding to a Thr:Lys ratio of about 0.60, 0.64, 0.68, 0.73, 0.76, 0.81. Dietary Thr concentration of 5.4 g/kg improved daily gains by about 15 percentage points (P < 0.05) and the feed conversion ratio by about 7 percentage points, compared to pigs fed the basal diet (4.9 g/kg Thr). Increasing dietary Thr above 5.4 g/kg had no further effects on performance. The blood plasma urea concentration was minimized at a dietary Thr concentration of 6.1 g/kg. For all treatments there was a low effect of dietary Thr supply on carcass quality. Goblet cell density in the small intestine and colon did not differ between different levels of dietary Thr. Based on the results of growth performance, an optimum total dietary Thr:Lys ratio in the finisher stage of pigs ranges from 0.66 to 0.68.

Suggested Citation

  • C. Plitzner & T. Ettle & S. Handl & P. Schmidt & W. Windisch, 2007. "Effects of different dietary threonine levels on growth and slaughter performance in finishing pigs," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 52(12), pages 447-455.
    • Handle: RePEc:caa:jnlcjs:v:52:y:2007:i:12:id:2334-cjas
    DOI: 10.17221/2334-CJAS
    as

    Download full text from publisher

    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/2334-CJAS.html
    Download Restriction: free of charge
    File URL: http://cjas.agriculturejournals.cz/doi/10.17221/2334-CJAS.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/2334-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. P. Homolka & V. Koukolová & Z. Němec & Z. Mudřík & B. Hučko & J. Sales, 2008. "Amino acid contents and intestinal digestibility of lucerne in ruminants as influenced by growth stage," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(12), pages 499-505.

    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:52:y:2007:i:12:id:2334-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.