Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets
A trial was carried out to determine the lysine requirement for starting barrows fed on ideal protein concept-based diets. Thirty-two pigs from a commercial crossbred genetic group (CCGG, BW=15.9 ± 1.4 kg) and 32 pigs from a dam line one (DLGG, BW= 14.8 ± 1.0 kg) were used. Pigs were allotted to 4 treatments with diets containing increasing levels of total lysine (0.80, 1.00, 1.20 and 1.40%). Methionine+cystine, threonine and tryptophan were adjusted according to ideal protein profile. Data from performance, plasma urea nitrogen (PUN) and carcass composition were analyzed. CCGG showed higher daily feed intake, daily weight gain, PUN and protein:fat ratio in carcass, while DLGG showed higher fat carcass content and nitrogen retention. Fat content and protein:fat ratio in carcass for CCCGG and PUN and crude protein carcass content for DLGG showed quadratic response to increasing total lysine levels. Derivations of the quadratic equations indicated the total lysine requirement for CCGG starting barrows is 1.15% and for DLGG starting barrows is 1.09%.
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Instituto de Tecnologia do Paraná - Tecpar
2008
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oai:scielo:S1516-891320080001000072008-04-11Lysine requirement of starting barrows from two genetic groups fed on low crude protein dietsFraga,Alessandro LuísMoreira,IvanFurlan,Antonio ClaudioBastos,Alexandre OrioOliveira,Ricardo Pinto deMurakami,Alice Eiko Carcass composition crystalline amino acids nitrogen excretion nutrition lean meat A trial was carried out to determine the lysine requirement for starting barrows fed on ideal protein concept-based diets. Thirty-two pigs from a commercial crossbred genetic group (CCGG, BW=15.9 ± 1.4 kg) and 32 pigs from a dam line one (DLGG, BW= 14.8 ± 1.0 kg) were used. Pigs were allotted to 4 treatments with diets containing increasing levels of total lysine (0.80, 1.00, 1.20 and 1.40%). Methionine+cystine, threonine and tryptophan were adjusted according to ideal protein profile. Data from performance, plasma urea nitrogen (PUN) and carcass composition were analyzed. CCGG showed higher daily feed intake, daily weight gain, PUN and protein:fat ratio in carcass, while DLGG showed higher fat carcass content and nitrogen retention. Fat content and protein:fat ratio in carcass for CCCGG and PUN and crude protein carcass content for DLGG showed quadratic response to increasing total lysine levels. Derivations of the quadratic equations indicated the total lysine requirement for CCGG starting barrows is 1.15% and for DLGG starting barrows is 1.09%.info:eu-repo/semantics/openAccessInstituto de Tecnologia do Paraná - TecparBrazilian Archives of Biology and Technology v.51 n.1 20082008-02-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100007en10.1590/S1516-89132008000100007 |
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Fraga,Alessandro Luís Moreira,Ivan Furlan,Antonio Claudio Bastos,Alexandre Orio Oliveira,Ricardo Pinto de Murakami,Alice Eiko |
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Fraga,Alessandro Luís Moreira,Ivan Furlan,Antonio Claudio Bastos,Alexandre Orio Oliveira,Ricardo Pinto de Murakami,Alice Eiko Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets |
| author_facet |
Fraga,Alessandro Luís Moreira,Ivan Furlan,Antonio Claudio Bastos,Alexandre Orio Oliveira,Ricardo Pinto de Murakami,Alice Eiko |
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Fraga,Alessandro Luís |
| title |
Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets |
| title_short |
Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets |
| title_full |
Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets |
| title_fullStr |
Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets |
| title_full_unstemmed |
Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets |
| title_sort |
lysine requirement of starting barrows from two genetic groups fed on low crude protein diets |
| description |
A trial was carried out to determine the lysine requirement for starting barrows fed on ideal protein concept-based diets. Thirty-two pigs from a commercial crossbred genetic group (CCGG, BW=15.9 ± 1.4 kg) and 32 pigs from a dam line one (DLGG, BW= 14.8 ± 1.0 kg) were used. Pigs were allotted to 4 treatments with diets containing increasing levels of total lysine (0.80, 1.00, 1.20 and 1.40%). Methionine+cystine, threonine and tryptophan were adjusted according to ideal protein profile. Data from performance, plasma urea nitrogen (PUN) and carcass composition were analyzed. CCGG showed higher daily feed intake, daily weight gain, PUN and protein:fat ratio in carcass, while DLGG showed higher fat carcass content and nitrogen retention. Fat content and protein:fat ratio in carcass for CCCGG and PUN and crude protein carcass content for DLGG showed quadratic response to increasing total lysine levels. Derivations of the quadratic equations indicated the total lysine requirement for CCGG starting barrows is 1.15% and for DLGG starting barrows is 1.09%. |
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Instituto de Tecnologia do Paraná - Tecpar |
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2008 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100007 |
| work_keys_str_mv |
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