Níveis de lisina para suínos machos castrados selecionados geneticamente para deposição de carne magra na carcaça, dos 95 aos 122 kg

Arouca, Cláudio Luiz Corrêa; Fontes, Dalton de Oliveira; Baião, N.C.; Silva, Martinho de Almeida e; Silva, Francisco Carlos de Oliveira

doi:10.1590/s1413-70542007000200038

Cited by 12 publications

(10 citation statements)

References 10 publications

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“…Feed intake was not affected (P>0.05) by the digestible lysine levels, which is consistent with the results obtained by Friesen et al (1995), Cline et al (2000), Arouca et al (2005), Abreu et al (2007), Arouca et al (2007) and Marino et al (2007b). Other authors (Gonçalves et al, 1999;Oliveira et al 2003) have however observed reductions in feed intake with increasing levels of dietary lysine.…”

Section: Resultssupporting

confidence: 92%

“…Similarly, Marinho et al (2007a) found no effect of digestible lysine levels (0.67 and 0.87%) in diets with or without ractopamine (5.0 ppm) on pigs' performance. Arouca et al (2007) assessed the levels of digestible lysine (0.50-to 0.90%) for 95-to 122-kg pigs and found a lysine requirement of 0.71%. Kiefer & Sanchez (2009) verified that pigs' weight gain linearly increased as dietary lysine increased in all levels of ractopamine, including the diet with no ractopamine.…”

Section: Resultsmentioning

confidence: 99%

“…Similar results were obtained by Moreira et al (2002), Marino et al (2007b) and Almeida (2008). However, the influence of different levels of dietary lysine on feed conversion of pigs was reported by several authors (Cline et al, 2000;Arouca et al, 2005;Abreu et al, 2007;Arouca et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

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Digestible lysine levels in diets supplemented with ractopamine

Souza¹,

Haese²,

Kill³

et al. 2011

R. Bras. Zootec.

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In order evaluate digestible lysine levels in diets supplemented with 20 ppm of ractopamine on the performance and carcass traits, 64 barrows with high genetic potential at finishing phase were allotted in a completely randomized block design with four digestible lysine levels (0.80, 0.90, 1.00, and 1.10%), eight replicates and two pigs per experimental unit. Initial body weight and pigs' kinship were used as criteria in the blocks formation. Diets were mainly composed of corn and soybean meal supplemented with minerals, vitamins and amino acids to meet pigs' nutritional requirements at the finishing phase, except for digestible lysine. No effect of digestible lysine levels was observed in animal performance. The digestible lysine intake increased linearly by increasing the levels of digestible lysine in the diets. Carcass traits were not influenced by the dietary levels of digestible lysine. The level of 0.80% of digestible lysine in diets supplemented with 20 ppm ractopamine meets the nutritional requirements of castrated male pigs during the finishing phase

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

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Digestible lysine levels in diets supplemented with ractopamine

Souza¹,

Haese²,

Kill³

et al. 2011

R. Bras. Zootec.

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“…Dietary aP concentrations that maximized ADG were 0.200, 0.307, and 0.350% in the experiments reported by Ketaren et al (1993), Stahly et al (2000), and Arouca (2008). These differences may have been caused by differences in the genetic potential for lean gain among pigs used in the different experiments because data reported by Hendriks and Moughan (1993) and Mahan (2006) indicated that pigs with different lean growth potentials may have different mineral requirements.…”

Section: Discussionmentioning

confidence: 86%

Phosphorus requirements for 60- to 100-kg pigs selected for high lean deposition under different thermal environments

Saraiva

Donzele

Oliveira

et al. 2012

Journal of Animal Science

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Two experiments were conducted to determine the requirement of available P (aP) of pigs selected for high lean deposition during summer (maximum and minimum temperatures of 29.8 ± 3.6 and 21.3 ± 1.1°C, respectively; Exp. 1) and winter (maximum and minimum temperatures of 24.7 ± 2.1 and 9.1 ± 1.6°C, respectively; Exp. 2). Pigs (66.5 ± 2.8 kg, Exp. 1; and 61.1 ± 0.6 kg, Exp. 2) were randomly allotted to 5 dietary treatments. Exp. 1 had 5 pens/treatment and Exp. 2 had 6 pens/treatment, and all pens had 2 pigs. Treatments were composed of a corn-soybean meal basal diet and 4 diets with additional dicalcium phosphate to obtain 5 aP concentrations (0.122, 0.187, 0.252, 0.317, and 0.382% in Exp. 1, and 0.135, 0.200, 0.265, 0.330, and 0.395% in Exp. 2). Pigs were allowed ad libitum access to their respective diets for 30 d. In Exp. 1, increasing aP improved ADFI and ADG (quadratic, P < 0.05), with maximum responses obtained at 0.226 and 0.256% of aP, respectively. Increasing aP improved (P < 0.05) G:F. A broken-line analysis indicated that G:F was maximized (P < 0.05) at 0.295% of aP or 9.04 g of aP/d. Increasing aP also increased (quadratic, P < 0.05) P and Ca (g/kg) in the metacarpals with maximum responses obtained at 0.314 and 0.272% of aP, respectively. The percentage of ash in the metacarpals continued to increase (linear, P < 0.05) with increasing aP. In Exp. 2, ADG and G:F improved (linear and quadratic, P < 0.05) as aP increased in the diet. A broken-line analysis indicated that G:F was maximized (P < 0.05) at 0.316% of aP or 10.58 g of aP per day. However, increasing aP had no effect on ADFI. Percentages of ash, P, and Ca in the metacarpals increased (linear, P < 0.05) with increasing aP. In conclusion, results of this experiment indicated that finishing pigs (60 to 100 kg) kept in a thermoneutral environment require 0.316% aP in the diet (10.58 g/d) to maximize G:F, but the requirement is only 0.295% aP (9.04 g/d) when pigs are under heat stress.

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“…Por sua vez, Arouca et al (2007) (Kill et al, 2003) e machos não castrados (Kiefer et al, 2012). Main et al (2008) também registraram melhora no desempenho de machos castrados e fêmeas de 35 a 120 kg em função do aumento da concentração de lisina.…”

Section: Resultsunclassified

Planos nutricionais de lisina para suínos da fase inicial a terminação

2013

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RESUMOEste estudo foi conduzido com o objetivo de avaliar planos nutricionais de lisina para suínos criados em lotes mistos, dos 63 aos 164 dias de idade. Foram utilizados 240 animais, com peso inicial de 24,6±1,5 kg, distribuídos em delineamento de blocos ao acaso com quatro planos nutricionais (A: 1,05-0,88-0,82-0,78-0,78; B: 1,05-0,87-0,80-0,76-0,76; C: 1,05-0,85-0,77-0,71-0,71 The nutritional plan corresponding to sequence C, respectively, for pigs from 63 to 74 days, 63 to 89 days, 63 to 111 days, 63 to 135 days and 63 to 164 days meet the nutritional needs and maximizes the performance and carcass traits of the initial at finishing phase.

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Níveis de lisina para suínos machos castrados selecionados geneticamente para deposição de carne magra na carcaça, dos 95 aos 122 kg

Cited by 12 publications

References 10 publications

Digestible lysine levels in diets supplemented with ractopamine

Digestible lysine levels in diets supplemented with ractopamine

Phosphorus requirements for 60- to 100-kg pigs selected for high lean deposition under different thermal environments

Planos nutricionais de lisina para suínos da fase inicial a terminação

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