Effects of sex and dietary lysine on performances and serum and meat traits in finisher pigs

A total of 160 Duroc×(Landrace×Large White) pigs, 50% barrows and 50% gilts, of 28.3±4.52 kg of BW were used to study the effect of lysine (Lys) restriction in the finisher period, on growth performances and serum and carcass and meat quality traits. The grower diet (from 30 to 90 kg BW) was slightl...

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Published in:Animal (Cambridge, England) England), 2015-10, Vol.9 (10), p.1731-1739
Main Authors: Suárez-Belloch, J., Guada, J. A., Latorre, M. A.
Format: Article
Language:English
Subjects:
Animal Feed
Animals
backfat
barrows
blood serum
Body Composition - drug effects
Body Weight - drug effects
carcass yield
Diet - veterinary
Dietary Supplements
experimental diets
feed conversion
feed intake
Female
gilts
growth performances
ileum
intramuscular fat
lysine
Lysine - pharmacology
lysine restriction
Meat - standards
meat composition
meat quality
Phenotype
pigs
pork
Product quality, human health and well-being
Research Article
sex
slaughter
Swine - growth & development
Swine - physiology
urea
Urea - blood
weight
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description A total of 160 Duroc×(Landrace×Large White) pigs, 50% barrows and 50% gilts, of 28.3±4.52 kg of BW were used to study the effect of lysine (Lys) restriction in the finisher period, on growth performances and serum and carcass and meat quality traits. The grower diet (from 30 to 90 kg BW) was slightly Lys-restricted (7.8 g standardised ileal digestible (SID) Lys/kg) in accordance with results from a previous trial. During the finisher period (90 to 130 kg BW), four experimental diets with decreasing SID Lys contents (6.3, 5.6, 4.2 and 3.2 g/kg) were tested. Each of the eight treatments (two sexes×four levels of Lys) was replicated five times. Each replicate was a pen with four pigs allocated together. When animals achieved 129±2.59 kg were slaughtered and carcass and meat characteristics were evaluated. No significant interaction sex×diet was found. During the finisher period, barrows grew faster (P
doi_str_mv 10.1017/S1751731115001111
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A. ; Latorre, M. A.</creator><creatorcontrib>Suárez-Belloch, J. ; Guada, J. A. ; Latorre, M. A.</creatorcontrib><description><![CDATA[A total of 160 Duroc×(Landrace×Large White) pigs, 50% barrows and 50% gilts, of 28.3±4.52 kg of BW were used to study the effect of lysine (Lys) restriction in the finisher period, on growth performances and serum and carcass and meat quality traits. The grower diet (from 30 to 90 kg BW) was slightly Lys-restricted (7.8 g standardised ileal digestible (SID) Lys/kg) in accordance with results from a previous trial. During the finisher period (90 to 130 kg BW), four experimental diets with decreasing SID Lys contents (6.3, 5.6, 4.2 and 3.2 g/kg) were tested. Each of the eight treatments (two sexes×four levels of Lys) was replicated five times. Each replicate was a pen with four pigs allocated together. When animals achieved 129±2.59 kg were slaughtered and carcass and meat characteristics were evaluated. No significant interaction sex×diet was found. During the finisher period, barrows grew faster (P<0.001) and ate more feed (P<0.001) but tended to be less efficient (P=0.055) than gilts. The Lys restriction affected linearly (P<0.001) all productive performance traits; daily BW gain and feed intake decreased and feed conversion ratio increased. Also, the concentration of serum urea at slaughter tended to be higher in barrows than in gilts (P=0.065) and was reduced quadratically by the restriction of Lys in feed (P<0.001). Carcasses from barrows had higher backfat thickness (P<0.01) and lower weight of main trimmed lean cuts (ham+shoulder+loin; P<0.05) than those from gilts. The Lys restriction during the finisher period decreased carcass yield (quadratic; P<0.001) and the weight of major cuts (linear; P<0.001). Sex and diet had limited effect on meat characteristics; the Lys restriction decreased quadratically the proportion of protein (P<0.01) and increased linearly the intramuscular fat (IMF) content (P<0.001). We can conclude that dietary Lys restriction during finisher period in pigs impaired growth performances and was not successful to increase the carcass fat deposition, although it could have positive effects on IMF proportion of pork.]]></description><identifier>ISSN: 1751-7311</identifier><identifier>ISSN: 1751-732X</identifier><identifier>EISSN: 1751-732X</identifier><identifier>DOI: 10.1017/S1751731115001111</identifier><identifier>PMID: 26144869</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Animal Feed ; Animals ; backfat ; barrows ; blood serum ; Body Composition - drug effects ; Body Weight - drug effects ; carcass yield ; Diet - veterinary ; Dietary Supplements ; experimental diets ; feed conversion ; feed intake ; Female ; gilts ; growth performances ; ileum ; intramuscular fat ; lysine ; Lysine - pharmacology ; lysine restriction ; Meat - standards ; meat composition ; meat quality ; Phenotype ; pigs ; pork ; Product quality, human health and well-being ; Research Article ; sex ; slaughter ; Swine - growth &amp; development ; Swine - physiology ; urea ; Urea - blood ; weight</subject><ispartof>Animal (Cambridge, England), 2015-10, Vol.9 (10), p.1731-1739</ispartof><rights>The Animal Consortium 2015</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c642t-19d4f84ef7d63f0085d8b9bbca02a71b2a694cc2d3c61875160732ef6adc576b3</citedby><cites>FETCH-LOGICAL-c642t-19d4f84ef7d63f0085d8b9bbca02a71b2a694cc2d3c61875160732ef6adc576b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26144869$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Suárez-Belloch, J.</creatorcontrib><creatorcontrib>Guada, J. A.</creatorcontrib><creatorcontrib>Latorre, M. A.</creatorcontrib><title>Effects of sex and dietary lysine on performances and serum and meat traits in finisher pigs</title><title>Animal (Cambridge, England)</title><addtitle>Animal</addtitle><description><![CDATA[A total of 160 Duroc×(Landrace×Large White) pigs, 50% barrows and 50% gilts, of 28.3±4.52 kg of BW were used to study the effect of lysine (Lys) restriction in the finisher period, on growth performances and serum and carcass and meat quality traits. The grower diet (from 30 to 90 kg BW) was slightly Lys-restricted (7.8 g standardised ileal digestible (SID) Lys/kg) in accordance with results from a previous trial. During the finisher period (90 to 130 kg BW), four experimental diets with decreasing SID Lys contents (6.3, 5.6, 4.2 and 3.2 g/kg) were tested. Each of the eight treatments (two sexes×four levels of Lys) was replicated five times. Each replicate was a pen with four pigs allocated together. When animals achieved 129±2.59 kg were slaughtered and carcass and meat characteristics were evaluated. No significant interaction sex×diet was found. During the finisher period, barrows grew faster (P<0.001) and ate more feed (P<0.001) but tended to be less efficient (P=0.055) than gilts. The Lys restriction affected linearly (P<0.001) all productive performance traits; daily BW gain and feed intake decreased and feed conversion ratio increased. Also, the concentration of serum urea at slaughter tended to be higher in barrows than in gilts (P=0.065) and was reduced quadratically by the restriction of Lys in feed (P<0.001). Carcasses from barrows had higher backfat thickness (P<0.01) and lower weight of main trimmed lean cuts (ham+shoulder+loin; P<0.05) than those from gilts. The Lys restriction during the finisher period decreased carcass yield (quadratic; P<0.001) and the weight of major cuts (linear; P<0.001). Sex and diet had limited effect on meat characteristics; the Lys restriction decreased quadratically the proportion of protein (P<0.01) and increased linearly the intramuscular fat (IMF) content (P<0.001). We can conclude that dietary Lys restriction during finisher period in pigs impaired growth performances and was not successful to increase the carcass fat deposition, although it could have positive effects on IMF proportion of pork.]]></description><subject>Animal Feed</subject><subject>Animals</subject><subject>backfat</subject><subject>barrows</subject><subject>blood serum</subject><subject>Body Composition - drug effects</subject><subject>Body Weight - drug effects</subject><subject>carcass yield</subject><subject>Diet - veterinary</subject><subject>Dietary Supplements</subject><subject>experimental diets</subject><subject>feed conversion</subject><subject>feed intake</subject><subject>Female</subject><subject>gilts</subject><subject>growth performances</subject><subject>ileum</subject><subject>intramuscular fat</subject><subject>lysine</subject><subject>Lysine - pharmacology</subject><subject>lysine restriction</subject><subject>Meat - standards</subject><subject>meat composition</subject><subject>meat quality</subject><subject>Phenotype</subject><subject>pigs</subject><subject>pork</subject><subject>Product quality, human health and well-being</subject><subject>Research Article</subject><subject>sex</subject><subject>slaughter</subject><subject>Swine - growth &amp; development</subject><subject>Swine - physiology</subject><subject>urea</subject><subject>Urea - blood</subject><subject>weight</subject><issn>1751-7311</issn><issn>1751-732X</issn><issn>1751-732X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>DOA</sourceid><recordid>eNp1kU2LFDEQhhtR3HX1B3jRgBcvo6kknXSOsqy6sOBhXfAghHRSGTN0d8akG3b_vZkPB1G8pIriqbfeSjXNS6DvgIJ6fwuqBcUBoKW0vvCoOd-VVoqzb49POcBZ86yUDaWtBiGeNmdM1thJfd58vwoB3VxICqTgPbGTJz7ibPMDGR5KnJCkiWwxh5RHOzkse6RgXsZ9NqKdyZxtrBpxIiFOsfzATLZxXZ43T4IdCr44xovm7uPV18vPq5svn64vP9ysnBRsXoH2InQCg_KSB0q71ne97ntnKbMKemalFs4xz52Eru4kaV0Qg7TetUr2_KK5Puj6ZDdmm-NY7Ztko9kXUl4bm-foBjROS1lbndBIRXDWyk5JwanQgvkgoWq9PWhtc_q5YJnNGIvDYbATpqUYUMC10Fyrir75C92kJU910z3FGOMgKgUHyuVUSsZwMgjU7M5o_jlj7Xl1VF76Ef2p4_fdKvD6AASbjF3nWMzdLaP1Z6oAa-nOHD-OtWOfo1_jH-7-O_gXYlWuWQ</recordid><startdate>20151001</startdate><enddate>20151001</enddate><creator>Suárez-Belloch, J.</creator><creator>Guada, J. 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A.</au><au>Latorre, M. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of sex and dietary lysine on performances and serum and meat traits in finisher pigs</atitle><jtitle>Animal (Cambridge, England)</jtitle><addtitle>Animal</addtitle><date>2015-10-01</date><risdate>2015</risdate><volume>9</volume><issue>10</issue><spage>1731</spage><epage>1739</epage><pages>1731-1739</pages><issn>1751-7311</issn><issn>1751-732X</issn><eissn>1751-732X</eissn><abstract><![CDATA[A total of 160 Duroc×(Landrace×Large White) pigs, 50% barrows and 50% gilts, of 28.3±4.52 kg of BW were used to study the effect of lysine (Lys) restriction in the finisher period, on growth performances and serum and carcass and meat quality traits. The grower diet (from 30 to 90 kg BW) was slightly Lys-restricted (7.8 g standardised ileal digestible (SID) Lys/kg) in accordance with results from a previous trial. During the finisher period (90 to 130 kg BW), four experimental diets with decreasing SID Lys contents (6.3, 5.6, 4.2 and 3.2 g/kg) were tested. Each of the eight treatments (two sexes×four levels of Lys) was replicated five times. Each replicate was a pen with four pigs allocated together. When animals achieved 129±2.59 kg were slaughtered and carcass and meat characteristics were evaluated. No significant interaction sex×diet was found. During the finisher period, barrows grew faster (P<0.001) and ate more feed (P<0.001) but tended to be less efficient (P=0.055) than gilts. The Lys restriction affected linearly (P<0.001) all productive performance traits; daily BW gain and feed intake decreased and feed conversion ratio increased. Also, the concentration of serum urea at slaughter tended to be higher in barrows than in gilts (P=0.065) and was reduced quadratically by the restriction of Lys in feed (P<0.001). Carcasses from barrows had higher backfat thickness (P<0.01) and lower weight of main trimmed lean cuts (ham+shoulder+loin; P<0.05) than those from gilts. The Lys restriction during the finisher period decreased carcass yield (quadratic; P<0.001) and the weight of major cuts (linear; P<0.001). Sex and diet had limited effect on meat characteristics; the Lys restriction decreased quadratically the proportion of protein (P<0.01) and increased linearly the intramuscular fat (IMF) content (P<0.001). We can conclude that dietary Lys restriction during finisher period in pigs impaired growth performances and was not successful to increase the carcass fat deposition, although it could have positive effects on IMF proportion of pork.]]></abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><pmid>26144869</pmid><doi>10.1017/S1751731115001111</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record>
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source ScienceDirect Journals
subjects Animal Feed
Animals
backfat
barrows
blood serum
Body Composition - drug effects
Body Weight - drug effects
carcass yield
Diet - veterinary
Dietary Supplements
experimental diets
feed conversion
feed intake
Female
gilts
growth performances
ileum
intramuscular fat
lysine
Lysine - pharmacology
lysine restriction
Meat - standards
meat composition
meat quality
Phenotype
pigs
pork
Product quality, human health and well-being
Research Article
sex
slaughter
Swine - growth & development
Swine - physiology
urea
Urea - blood
weight
title Effects of sex and dietary lysine on performances and serum and meat traits in finisher pigs
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