Growth and body composition of Meishan and Yorkshire barrows and gilts.

B. R. White, Y. H. Lan, F. K. McKeith, J. Novakofski, M. B. Wheeler, D. G. McLaren

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Five barrows and five gilts of each of two breeds (Meishan [Ms] and Yorkshire [Y]) were slaughtered at birth and at 41, 71, 123, and 171 d of age and five gilts of each breed were slaughtered at 260 d of age. Major organ and visceral weights were obtained immediately postmortem (PM), whereas carcass characteristics, carcass composition, femur measurements, and two individual muscle weights were obtained 24 h PM. Linear and quadratic regression coefficients on age differed between the two breeds, in favor of Y barrows and gilts, for live weight, carcass weight, longissimus muscle area (LMA), liver, heart, spleen, and kidney weights, and femur cross-sectional, medullary, and cortical areas (P < .001), leaf fat weight, and percentage of body fat and protein. In contrast to somatic tissue, Ms gilts had uteri and ovaries that grew faster than those of Y gilts from birth to 260 d of age (P < .05), although the uterus and ovary weights were similar for both breeds by 260 d of age (P < .05). Regression coefficients differed (P < .05) between the two sexes for live, carcass, liver, lung and trachea, stomach and esophagus and leaf fat weights, dressing percentage, percentage of body protein, 10th rib backfat (TRBF) thickness (P < .001), and small intestine, kidney (P < .01), heart, and spleen weights (P < .05). Breed differences in regression coefficients differed between the two sexes for percentage of body protein and leaf fat weights (P < .05). Yorkshire pigs were larger, later-maturing pigs that grew faster from birth to 171 d of age. Yorkshire pigs slaughtered at 171 d of age had heavier total wholesale cut (WC), trimmed cut (TC), and boneless cut (BC) weights than did Ms pigs of the same age (P < .001).

Original languageEnglish (US)
Pages (from-to)738-749
Number of pages12
JournalJournal of animal science
Volume73
Issue number3
DOIs
StatePublished - Mar 1995

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Meishan
Yorkshire (swine breed)
barrows
Body Composition
gilts
body composition
Weights and Measures
Growth
body protein
Swine
breeds
swine
Fats
femur
Parturition
uterus
Femur
spleen
Uterus
lipids

ASJC Scopus subject areas

  • Food Science
  • Animal Science and Zoology
  • Genetics

Cite this

White, B. R., Lan, Y. H., McKeith, F. K., Novakofski, J., Wheeler, M. B., & McLaren, D. G. (1995). Growth and body composition of Meishan and Yorkshire barrows and gilts. Journal of animal science, 73(3), 738-749. https://doi.org/10.2527/1995.733738x

Growth and body composition of Meishan and Yorkshire barrows and gilts. / White, B. R.; Lan, Y. H.; McKeith, F. K.; Novakofski, J.; Wheeler, M. B.; McLaren, D. G.

In: Journal of animal science, Vol. 73, No. 3, 03.1995, p. 738-749.

Research output: Contribution to journalArticle

White, BR, Lan, YH, McKeith, FK, Novakofski, J, Wheeler, MB & McLaren, DG 1995, 'Growth and body composition of Meishan and Yorkshire barrows and gilts.', Journal of animal science, vol. 73, no. 3, pp. 738-749. https://doi.org/10.2527/1995.733738x
White, B. R. ; Lan, Y. H. ; McKeith, F. K. ; Novakofski, J. ; Wheeler, M. B. ; McLaren, D. G. / Growth and body composition of Meishan and Yorkshire barrows and gilts. In: Journal of animal science. 1995 ; Vol. 73, No. 3. pp. 738-749.
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