Investigations on the effects of Ca-soap of linseed oil on rumen fermentation in sheep and on milk composition of goats

É Cenkvári, S. Fekete, H. Fébel, T. Veresegyházi, E. Andrásofszky

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Six rumen-cannulated wethers were fed by a diet composed of alfalfa hay and concentrate and supplemented by 75 g Ca-soap of linseed oil (5.4% in dry matter, DM) daily. A model trial was performed to detect the effects of the Ca-soap on rumen fermentation parameters and on fibre digestion. Approximately 3 h after feeding Ca-soap, ratio of C2:C3 decreased (from 4.33 to 4.02) and the production of i- and n-butyrate and i- and n-valeriate increased by 28, 5.3, 11.76% and 6.80% respectively. Total volatile fatty acid concentration in rumen fluid did not change (126.1 vs. 126.4 mM) as a result of Ca-soap supplementation. The in vitro trial showed no detrimental influence of Ca-soap on the acid detergent fibre (ADF) degradation. Using feed samples containing Ca-soap to be incubated in tubes, ADF digestion proved to be significantly higher (p <0.001). Approximately 14 goats (Saanen breed, 30-70 days in lactation) were used to test the effects of Ca-soap on milk composition. Their ration contained alfalfa hay, millet straw and a concentrate. In the experimental group (seven goats) the diet was supplemented with Ca-soap of linseed oil (75 g/animal/day). The milk composition was changed (slightly reduced solid content, sometimes significantly reduced milk fat contents), when Ca-soap was included in the diet of lactating goats.

Original languageEnglish
Pages (from-to)172-178
Number of pages7
JournalJournal of Animal Physiology and Animal Nutrition
Volume89
Issue number3-6
DOIs
Publication statusPublished - Apr 2005

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Linseed Oil
Soaps
soaps
linseed oil
Rumen
milk composition
rumen fermentation
Goats
Fermentation
Sheep
Milk
goats
sheep
Medicago sativa
alfalfa hay
acid detergent fiber
Diet
Detergents
Digestion
concentrates

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)

Cite this

Investigations on the effects of Ca-soap of linseed oil on rumen fermentation in sheep and on milk composition of goats. / Cenkvári, É; Fekete, S.; Fébel, H.; Veresegyházi, T.; Andrásofszky, E.

In: Journal of Animal Physiology and Animal Nutrition, Vol. 89, No. 3-6, 04.2005, p. 172-178.

Research output: Contribution to journalArticle

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