Effect of different fat sources on in vitro degradation of nutrients and certain blood parameters in sheep

H. Fébel, F. Husvéth, T. Veresegyházy, Emese Andrásofszky, Ildikó Várhegyi, Szilvia Huszár

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This study was designed to determine the effects of calcium salt of palm oil fatty acids (CS), hydroxyethylsoyamide (HESA), butylsoyamide (BSA) and soybean oil (SO) on degradation of crude protein and fibre in vitro, and on the blood plasma lipid parameters in vivo. Five mature wethers (body weight 75 kg) were fed five diets in a 5 × 5 Latin square experiment. The control diet consisted of 50% meadow hay and 50% concentrate with no added fat. The control diet was supplemented with CS, HESA, BSA, or SO. Fat was added at 3.5% of dietary dry matter (DM). The final ether extract content of the ration was near 6%. Each period lasted 20 days. Fat supplements, except HESA, consistently decreased the in vitro DM disappearance of soybean meal as compared to control. In contrast to the effect of other treatments, crude protein degradation was greatest in the test tubes with inocula obtained from sheep fed diet with HESA. Fat supplements equally inhibited the DM and fibre breakdown of alfalfa pellet. CS and HESA seemed to be less detrimental to in vitro fermentation of neutral detergent fibre (NDF) than BSA and SO. All fat supplements increased blood plasma triglyceride, cholesterol and total lipid content. Plasma concentration of cholesterol and total lipid was highest with SO. The inclusion of CS in the diet increased 16:0, while all fat supplements increased plasma 18:0 and decreased 16:1 and 18:1 fatty acid content. Plasma 18:2n-6 was not changed by feeding CS and SO. However, compared to the control diet, 18:2n-6 increased with 12 and 41% in plasma fatty acids when sheep were fed HESA and BSA, respectively. The results showed that plasma concentration of linoleic acid was enhanced more when the amide was synthesised from butylamine than when from ethanolamine.

Original languageEnglish
Pages (from-to)217-229
Number of pages13
JournalActa Veterinaria Hungarica
Volume50
Issue number2
DOIs
Publication statusPublished - 2002

Fingerprint

Soybean Oil
Sheep
Fats
soybean oil
sheep
Food
degradation
Diet
blood
nutrients
lipids
diet
Fatty Acids
blood plasma
Lipids
Proteolysis
crude protein
butylamine
Butylamines
Cholesterol

Keywords

  • Fatty acid
  • in vitro degradation
  • Oleamide
  • Sheep
  • Soybean oil

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Effect of different fat sources on in vitro degradation of nutrients and certain blood parameters in sheep. / Fébel, H.; Husvéth, F.; Veresegyházy, T.; Andrásofszky, Emese; Várhegyi, Ildikó; Huszár, Szilvia.

In: Acta Veterinaria Hungarica, Vol. 50, No. 2, 2002, p. 217-229.

Research output: Contribution to journalArticle

Fébel, H. ; Husvéth, F. ; Veresegyházy, T. ; Andrásofszky, Emese ; Várhegyi, Ildikó ; Huszár, Szilvia. / Effect of different fat sources on in vitro degradation of nutrients and certain blood parameters in sheep. In: Acta Veterinaria Hungarica. 2002 ; Vol. 50, No. 2. pp. 217-229.
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