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Performance, carcass and meat quality in pigs

influence of rearing system, breed and feeding

Heyer, Anke (2004). Performance, carcass and meat quality in pigs. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae. Agraria, 1401-6249 ; 487
ISBN 91–576-6765-9
[Doctoral thesis]

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Abstract

In this thesis, influences of conventional and organic rearing systems, breed crosses and feeding regimens on performance, carcass and technological and sensory meat quality traits in pigs were investigated. In two studies, a seasonal outdoor rearing system was investigated. Maternal performance of once-bred gilts was studied and their carcass and meat quality was compared with maiden indoor reared gilts. In a third study, the outdoor-born progeny was raised indoors and outdoors; performance, carcass and meat quality of these growing/finishing pigs were compared. In a fourth study, indoor and outdoor rearing systems of growing/finishing pigs, born indoors, including different feeding regimens (strategic/ad libitum/restrictive), diets (diluted/undiluted; conventional/organic) and breed crosses (LW*L/LW*D) were investigated. In a fifth study, effects of extra maternal feed supply during early gestation on sow and progeny performance, carcass and meat quality were studied. The studies showed that once-bred gilts were suitable for a seasonal outdoor rearing system and produced carcasses of adequate quality. LW*L once-bred gilts had more piglets at weaning, whereas LW*D progeny had higher growth rate. For the progeny, outdoor pigs had higher growth rate when fed ad libitum but grew slower during the second restricted phase. Technological quality was similar. In the fourth study, indoor pigs fed an organic diet grew faster than outdoor pigs. Strategic feeding increased daily weight gain, compared with an exclusively diluted diet. Extra maternal feeding increased litter size per sow, but not per gilt. A negative effect on progeny growth rate was found, whereas carcass and technological quality was unaffected. In this thesis, the results indicate that pig production parameters are not only affected by housing system (indoor/outdoor) but by the entire rearing system, including breed cross, feeding regimen, diet composition, final weight and age.

Authors/Creators:Heyer, Anke
Title:Performance, carcass and meat quality in pigs
Subtitle:influence of rearing system, breed and feeding
Year of publishing :October 2004
Volume:487
Number of Pages:54
Papers/manuscripts:
NumberReferences
ALLI. Heyer, A., Andersson H. K., Rydhmer, L. & Lundström, K. (2004). Carcass quality and technological and sensory meat quality of once-bred gilts in a seasonal outdoor rearing system. Acta Agriculturae Scandinavica Section A, 54, 103-111. II. Heyer, A., Andersson, H. K., Leufvén, S., Rydhmer, L. & Lundström, K. The effect of breed cross on performance and meat quality of once-bred gilts in a seasonal outdoor rearing system. Submitted for publication. III. Stern, S., Heyer, A., Andersson, H. K., Rydhmer, L. & Lundström, K. (2003). Production results and technological meat quality for pigs in indoor and outdoor rearing systems. Acta Agriculturae Scandinavica Section A, 53, 166-174. IV. Heyer, A., Andersson, H. K. & Lundström, K. Performance, carcass and technological meat quality of growing/finishing pigs raised in organic and conventional systems. Submitted for publication. V. Heyer, A., Andersson, H. K., Lindberg, J.E. & Lundström, K. (2004). Effect of extra maternal feed supply in early gestation on sow and piglet performance and production and meat quality of growing/finishing pigs. Acta Agriculturae Scandinavica Section A, 54, 44-55.
Place of Publication:Uppsala
ISBN for printed version:91–576-6765-9
ISSN:1401-6249
Language:English
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:L Animal production > L02 Animal feeding
L Animal production > L10 Animal genetics and breeding
Subjects:Not in use, please see Agris categories
Agrovoc terms:sows, animal performance, piglets, swine, genotypes, meat, quality, carcasses, animal feeding, organic agriculture
Keywords:growing/finishing pig performance, maternal nutrition, organic, piglet performance, production system, RN genotype, sow performance
URN:NBN:urn:nbn:se:slu:epsilon-328
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-328
ID Code:659
Department:(NL, NJ) > Dept. of Food Science (until 161231)
Deposited By: Anke Heyer
Deposited On:19 Oct 2004 00:00
Metadata Last Modified:02 Dec 2014 10:06

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