Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs.

Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs. Research Abstract Details 

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Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs. Abstract Text:

T M Bertol,M Ellis,D N Hamilton,E W Johnson,M J Ritter,

Blood acid-base responses to handling were evaluated in slaughter weight pigs fed diets supplemented with l-carnitine and fat. The study was carried out as a randomized block design with a 2 x 2 factorial arrangement of treatments: 1) dietary L-carnitine supplementation (0 vs. 150 ppm, as-fed basis); and 2) dietary fat supplementation (0 vs. 5%, as-fed basis). Sixty pigs (91.1 +/- 5.14 kg BW) were housed in mixed-gender groups of five and had ad libitum access to test diets (0.68% true ileal digestible lysine, 3,340 kcal of ME/kg, as-fed basis) for 3 wk. At the end of the feeding period (110.3 +/- 7.52 kg BW), pigs were subjected to a standard handling procedure, which consisted of moving individual animals through a facility (12.2 m long x 0.91 m wide) for eight laps (up and down the facility), using electric prods (two times per lap). There was no interaction between dietary L-carnitine and fat supplementation for any measurement. Pigs fed 150 ppm of supplemental L-carnitine had lower baseline blood glucose (P < 0.05) and higher baseline blood lactate (P < 0.05) concentrations than the nonsupplemented pigs. After handling, pigs fed L-carnitine-supplemented diets had a higher (P < 0.05) blood pH and showed a smaller (P < 0.05) decrease in blood pH and base excess than those fed the nonsupplemental diets. Baseline plasma FFA concentrations were higher (P < 0.01) in pigs fed the 5% fat diet. After the handling procedure, blood glucose, lactate, and plasma FFA were higher (P < 0.05) in pigs fed the 5 vs. 0% fat diets, but blood pH, bicarbonate, and base excess were not affected by dietary fat. The handling procedure decreased (P < 0.01) blood pH, bicarbonate, base excess, and total carbon dioxide and increased (P < 0.01) blood lactate, partial pressure of oxygen, and glucose, and also increased (P < 0.01) rectal temperature. Free fatty acid concentrations were increased by handling in pigs fed both 0 and 5% fat and 150 ppm L-carnitine. In conclusion, dietary L-carnitine supplementation at the level and for the feeding period evaluated in the current study had a relatively small but positive effect on decreasing blood pH changes in finishing pigs submitted to handling stress; however, dietary fat supplementation had little effect on blood acid-base balance.

Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs. Publishing Authors By Initials

TM Bertol,M Ellis,DN Hamilton,EW Johnson,MJ Ritter,

For similar animals: chordata: vertebrates: mammals: artiodactyla: swine research abstracts see: animals: chordata: vertebrates: mammals: artiodactyla: swine research

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Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of animal science

VOLUME: 83

Page Numbers: 75-81

Journal Abbreviation: J. Anim. Sci.

ISSN: 1525-3163

DAY: 3

MONTH: Jan

YEAR: 2005

Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 8003002

Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs. Keywords Mesh Terms:

KEYWORDS: Swine

MESH TERMS: physiology

Chemical & Substance for Abstract: Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs. Information

Substance Name: Carnitine

Registry Number: 541-15-1

Grant and Affiliation Information for Effects of dietary supplementation with L-carnitine and fat on blood acid-base responses to handling in slaughter weight pigs.

AFFILIATION: Empresa Brasileira de Pesquisa Agropecuaria, 89700-000, Concordia, SC, Brazil.

Country: United States

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MEDLINETA: J Anim Sci

REFSOURCE: J Anim Sci. 2005 Mar;83(3):732

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