It is well known that accelerated\/compensatory growth may occur in pigs after a
\nperiod of feed restriction. However, very few data are available on the possible consequences of accelerated
\ngrowth on muscle protein-turnover in pigs (growth rate of muscle, nucleic acid
\ncontents, proteolytic enzyme activities). The content of DNA and RNA, as well as
\ntheir mutual proportions, influences the capacity of muscle for protein synthesis.
\nSimilarly, the activity of proteolytic enzymes (e.g. m- and m-calpain) influences
\nmuscle growth (Goll et al. 1998). The majority of studies on this topic investigated
\nfinal effects, mainly at slaughter weight (e.g. Kristensen et al. 2002; Oksbjerg et al.
\n2002; Therkildsen et al. 2002, 2004). In this study, these effects are examined in
\ngrowing pigs from 25\u2013105 kg bodyweight (BW) at several stages of bodyweight. Based on the results it can be concluded that limitation of protein and energy intake during early growth of pigs does not strongly influence
\ndaily muscle gain and protein deposition in the LD muscle. Similarly, re-introducing
\nadequate feeding did not influence these features. However, protein\/energy
\nrestriction decreases DNA concentration in the LD muscle, and during the following
\nrecovery period the DNA concentration tends towards its normal content.
\nMoreover, higher rate of gain of total content of DNA in the LD muscle of
\ntemporarily restricted pigs do not cause increased protein deposition in the muscle. As far as the activity of m-calpain is concerned, our results do not prove that it could
\nbe increased in recovering pigs.<\/p>\n","protected":false},"excerpt":{"rendered":"
It is well known that accelerated\/compensatory growth may occur in pigs after a period of feed restriction. However, very few data are available on the possible consequences of accelerated growth on muscle protein-turnover in pigs (growth rate of muscle, nucleic acid contents, proteolytic enzyme activities). The content of DNA and RNA, as well as their […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2102],"tags":[1809,8882,2858,3965,231,3734,27278,7484,1443,223,6904,46,108,20007,651,517,158,1374,20792,22808,14,33,6968,8131,76,20911,18011,6053,1301],"class_list":["post-4800","post","type-post","status-publish","format-standard","hentry","category-meat-quality","tag-acid","tag-al","tag-capacity","tag-content","tag-cover","tag-dna","tag-energy","tag-energy-intake","tag-enzyme","tag-enzymes","tag-fee","tag-feed","tag-feeding","tag-gh","tag-growing-pig","tag-growing-pigs","tag-growth","tag-growth-rate","tag-influence","tag-pic","tag-pig","tag-pigs","tag-pigs-growth-dna-rna-calpain","tag-protein-deposition","tag-slaughter","tag-t","tag-tot","tag-use","tag-weight"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/4800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/comments?post=4800"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/4800\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=4800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=4800"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=4800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}