Exigência de Lisina, com Base no Conceito de Proteína Ideal, para Suínos Machos Castrados de Dois Grupos Genéticos, na Fase de Crescimento

Gasparotto, Luiz Fernando; Moreira, Ivan; Furlan, Antônio Cláudio; Martins, Elias Nunes; Júnior, Maurício Marcos

doi:10.1590/s1516-35982001000700012

Cited by 18 publications

(23 citation statements)

References 8 publications

(8 reference statements)

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“…(2007), the inconsistency of the results found in studies examining the effects of increasing levels of dietary lysine on carcass traits of pigs may be related, among other factors, to the genotypic differences concerning meat deposition potential. This is in agreement with the results found by Gasparotto et al (2001) and Moreira et al (2002), who evaluated the lysine requirement of barrows from two genetic groups (common and improved) from 24 to 50 kg and 50 to 90 kg, respectively. They found that the levels of lysine influenced loin-eye area and depth, which varied between the genetic groups.…”

Section: Ingredientsupporting

confidence: 93%

“…The absence of effect of the levels of lysine in diets on the DFI of growing pigs (30 to 60 kg) was also observed by several authors (Fontes et al,2000;Gasparotto et al, 2001;Abreu et al, 2007;Souza et al, 2008, Main et al, 2008Zangeronimo et al, 2009;Fortes, 2009). …”

Section: Ingredientsupporting

confidence: 60%

“…Consistent with these assertions, Gasparotto et al (2001) evaluated the lysine requirement of barrows from two genetic groups (genetically improved and common groups), from 24-50 kg and found that lysine levels of 1.00 and 0.75% met Table 2 -Performance of barrows from 60 to 100 days of age in relation to the level of lysine in diets the animals' requirements of both groups (improved and common, respectively). No significant variation in weight gain in animals from different genetic strains was observed in this study.…”

Section: Ingredientmentioning

confidence: 80%

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Digestible lysine for barrows of genetic lines selected for meat deposition from 60 to 100 days of age

Haese¹,

Donzele²,

Oliveira³

et al. 2011

R. Bras. Zootec.

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-In order to evaluate the effects of dietary digestible lysine levels on performance and carcass traits of two genetic lines of pigs selected for meat deposition, from 60 to 100 days of age, a total of 120 crossbred barrows, with initial average body weight of 25.42 ± 2.08 kg were used. Pigs were allotted in a complete randomized block design, within a 4 × 2 factorial arrangement (four digestible lysine levels: 0.90, 1.00, 1.10, and 1.20%, and two genetic lines: A and B), with five replicates and three pigs per pen, which was the experimental unit. There was no interaction between genetic and digestible lysine levels for any variable of performance and carcass traits assessed. There was also no effect of digestible lysine levels in feed intake, body weight gain, and feed conversion. Digestible lysine intake of pigs increased linearly with increasing digestible lysine levels in the diets. Except for carcass yield that increased quadratically up to 1.04% estimate level of digestible lysine, there was no effect of lysine levels on the other carcass traits assessed (loin and ham yield, and amount of meat in the carcass).The digestible lysine level of 0.90%, corresponding to an estimated daily intake of 19.10 g, meets the requirements of castrated male pigs selected for meat deposition from both genetic lines, from 60 to 100 days of age.

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Section: Ingredientsupporting

confidence: 93%

Section: Ingredientsupporting

confidence: 60%

Section: Ingredientmentioning

confidence: 80%

See 1 more Smart Citation

Digestible lysine for barrows of genetic lines selected for meat deposition from 60 to 100 days of age

Haese¹,

Donzele²,

Oliveira³

et al. 2011

R. Bras. Zootec.

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“…PUN generally shows a high variance (Coma et al, 1995) and in some studies, PUN was not efficient to determine the lysine requirement (Fontes et al,.1999;Gasparotto et al, 2001;Hannas et al, 2000;Moreira et al, 2002. In this trial, the CCGG showed greater values of standard deviation for PUN than DLGG (Table 2).…”

Section: Resultsmentioning

confidence: 60%

Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets

Fraga

Moreira

Furlan

et al. 2008

Braz. arch. biol. technol.

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“…Gasparotto et al (2001), studying lysine levels that varied from 0.90 to 1.20 % of digestible lysine, with animals selected for fast growth, found a quadratic effect of lysine levels on intake in periods from 0 to 14 and 0 to 28 days of evaluation, but not in the total experimental period. Abreu et al (2007) also found no effect of lysine on feed intake, like Moretto et al (2000), Urynek & Buraczewska (2003), Toledo et al (2005), Oliveira et al (2006a) and Zangeronimo et al (2006).…”

Section: Results and Discusssionmentioning

confidence: 99%

Digestible lysine levels in diets for pigs from 24 to 50 kg under sanitary segregation

et al. 2012

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-This study evaluated the relationship between digestible lysine and metabolizable energy for barrow and gilts from 24 to 50 kg. Performance, digestibility and blood profile were studied. The experimental design was of randomized blocks, with five treatments, eight replicates and two animals per experimental unit in the performance assay and four replicates and one animal per experimental unit in the digestibility assay. The blood profile was chosen at 20 random animals of each sex, with four replicates per treatment and the animal as experimental unit. The treatments were 0.80, 0.90, 1.00, 1.10 and 1.20% digestible lysine. There was a linear effect of lysine levels on weight gain and feed conversion in females and crude protein in both sexes, gross energy excreted in the urine (kcal) and digestible energy (kcal). A quadratic effect of the amino acid studied in the daily consumption of crude protein (g) in both sexes, weight gain and feed conversion of barrows, as well as the nitrogen excreted in the urine (g) and nitrogen retained, and absorbed and retained. The relationship between neutrophils and lymphocytes had quadratic responses with increasing levels of lysine. The maximum performance for the studied genotype was obtained with 0.88 and 0.91% of digestible lysine or 2.60 and 2.67 g of digestible lysine/Mcal of metabolizable energy for females and barrows, respectively, corrected for digestibility trial.

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Exigência de Lisina, com Base no Conceito de Proteína Ideal, para Suínos Machos Castrados de Dois Grupos Genéticos, na Fase de Crescimento

Cited by 18 publications

References 8 publications

Digestible lysine for barrows of genetic lines selected for meat deposition from 60 to 100 days of age

Digestible lysine for barrows of genetic lines selected for meat deposition from 60 to 100 days of age

Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets

Digestible lysine levels in diets for pigs from 24 to 50 kg under sanitary segregation

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