Physiological Adaptations in Adipose Tissue of Brahman vs Angus Heifers

James E Sprinkle, H. S. Hansard, B. G. Warrington, J. W. Holloway, G. Wu, S. B. Smith

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Nonpregnant yearling Brahman (n = 12) and Angus (n = 12) heifers were equally allocated to two dietary treatments in a replicated study to examine responses in lipid metabolism to nutritional treatments consisting of a moderate energy diet (2.0 Meal ME/kg) fed at maintenance and a 2.5 × maintenance high-energy diet (2.4 Meal ME/kg) fed for 30 d. In vitro lipogenesis and the activities of lipoprotein lipase (LPL) and hormone-sensitive lipase (HSL) were determined in perianal subcutaneous adipose tissue biopsies at the start and end of the trial. At the start of the trial, breeds had similar (P > 10) rates of lipogenesis and LPL activity. Brahman had greater (P < .05) HSL activity than Angus at the start of the trial and tended (P < .07) to have greater HSL activity at the end. Diet did not influence (P > .10) HSL activity. Heifers on the high-energy, higher-intake diet had greater lipogenesis (P < .001) and LPL activity (P < .01) than those on the moderate-energy diet. Inclusion of body condition score (BCS) nested within breed as a covariate explained breed differences for lipogenesis (P < .05). Thus, by including the covariate, the two breeds had similar (P > .10) rates of lipogenesis at the end of the trial. When adjusted for BCS nested within breed, Brahman had greater (P < .05) LPL activity than Angus.

Original languageEnglish (US)
Pages (from-to)743-749
Number of pages7
JournalJournal of Animal Science
Volume76
Issue number3
StatePublished - Mar 1998
Externally publishedYes

Fingerprint

Physiological Adaptation
Lipogenesis
Brahman
lipogenesis
Angus
adipose tissue
lipoprotein lipase
Adipose Tissue
Lipoprotein Lipase
heifers
Sterol Esterase
Diet
Meals
Maintenance
hormones
breeds
high energy diet
Subcutaneous Fat
energy
Energy Intake

Keywords

  • Beef Cattle
  • Breeds
  • Lipogenesis
  • Lipoproteins
  • Triacylglycerol Lipase

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Sprinkle, J. E., Hansard, H. S., Warrington, B. G., Holloway, J. W., Wu, G., & Smith, S. B. (1998). Physiological Adaptations in Adipose Tissue of Brahman vs Angus Heifers. Journal of Animal Science, 76(3), 743-749.

Physiological Adaptations in Adipose Tissue of Brahman vs Angus Heifers. / Sprinkle, James E; Hansard, H. S.; Warrington, B. G.; Holloway, J. W.; Wu, G.; Smith, S. B.

In: Journal of Animal Science, Vol. 76, No. 3, 03.1998, p. 743-749.

Research output: Contribution to journalArticle

Sprinkle, JE, Hansard, HS, Warrington, BG, Holloway, JW, Wu, G & Smith, SB 1998, 'Physiological Adaptations in Adipose Tissue of Brahman vs Angus Heifers', Journal of Animal Science, vol. 76, no. 3, pp. 743-749.
Sprinkle JE, Hansard HS, Warrington BG, Holloway JW, Wu G, Smith SB. Physiological Adaptations in Adipose Tissue of Brahman vs Angus Heifers. Journal of Animal Science. 1998 Mar;76(3):743-749.
Sprinkle, James E ; Hansard, H. S. ; Warrington, B. G. ; Holloway, J. W. ; Wu, G. ; Smith, S. B. / Physiological Adaptations in Adipose Tissue of Brahman vs Angus Heifers. In: Journal of Animal Science. 1998 ; Vol. 76, No. 3. pp. 743-749.
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