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Einfluss der Zufütterung von tanninhaltiger Esparsette auf den Proteinumsatz von weidenden Milchkühen

Arrigo, Herr Yves and Dohme, Frau Frigga (2009) Einfluss der Zufütterung von tanninhaltiger Esparsette auf den Proteinumsatz von weidenden Milchkühen. Paper at: 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009.

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Summary

A study was carried out to investigate the potential of condensed tannins (CT) from
sainfoin to minimize ruminal ammonia load in dairy cows grazing pasture with a high
crude protein content (227 g/kg dry matter [DM]). Eight ruminally fistulated Holstein
cows were supplemented with either 4 kg DM of dehydrated-pelleted sainfoin (CT
content: 71 g/kg DM) or 4 kg DM of dehydrated-pelleted alfalfa (n = 4). Supplements
were divided into two meals fed in the morning and in the afternoon before cows went
on pasture. After adaptation to the diet (9 d) milk performance were measured on
three consecutive days and ruminal fluid and blood were sampled on two consecutive
days at 6:30, 8:00 and 16:30 h. Grass intake on pasture and the proportion of digested
protein were estimated using the double n-alkane technique. The supplements were
consumed completely. Grass DM intake was similar for treatments (P > 0.05). Ruminal
ammonia concentration increased in both treatment groups after the morning feeding
(P < 0.001) but was lower (P < 0.05) for cows on sainfoin treatment than for cows on
alfalfa treatment. The same trend was observed for plasma urea concentration
(P = 0.06). Milk performance did not (P > 0.05) differ between treatments. In conclusion,
about 25% of sainfoin in the diet can decrease ruminal ammonia and plasma urea
concentrations to a certain extent. However, to achieve a greater decrease sainfoin
with a higher CT content has to be fed.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Esparsette; Milchkühe; Proteinumsatz; Weide
Subjects: Animal husbandry > Feeding and growth
Research affiliation: International Conferences > 2009: Scientific Conference on Organic Agriculture > Tier > Tierernährung
Switzerland > Agroscope > ALP
Related Links:http://www.wissenschaftstagung.de/, http://www.verlag-koester.de/buch.php?id=645&start=0&fb_id=37
Deposited By: Arrigo, Herr Yves
ID Code:13978
Deposited On:16 Apr 2009
Last Modified:12 Apr 2010 07:37
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 10. Wissenschaftagung erschienen:
Mayer, J.; Alföldi, T.; Leiber, F.; Dubois, D.; Fried, P.; Heckendorn, F.; Hillmann, E.; Klocke, P.; Lüscher, A.; Riedel, S.; Stolze, M.; Strasser, F.; van der Heijden, M. and Willer, H., (Hrsg.) (2009) Werte – Wege – Wirkungen: Biolandbau im Spannungsfeld zwischen Ernährungssicherung, Markt und Klimawandel. Beiträge zur 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009.
Band 1: Boden, Pflanzenbau, Agrartechnik, Umwelt- und Naturschutz, Biolandbau international, Wissensmanagement
Band 2: Tierhaltung, Agrarpolitik und Betriebswirtschaft, Märkte und Lebensmittel.
Verlag Dr. Köster, Berlin.
Der Tagungsband kann beim Verlag Dr. Köster bezogen werden; siehe http://www.verlag-koester.de/buch.php?id=645&start=0&fb_id=37

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