Efeito de níveis de lisina digestível verdadeira e proteína bruta na dieta sobre parâmetros morfo-fisiológicos e utilização do nitrogênio em suínos na fase inicial

Zangerônimo, Márcio Gilberto; Fialho, Elias Tadeu; Murgas, Luís David Solis; Lima, José Augusto de Freitas; Rocha, E.V.H.; Alvarenga, Renata Ribeiro

doi:10.1590/s1413-70542007000200035

Cited by 3 publications

(5 citation statements)

References 10 publications

(9 reference statements)

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“…According to these results, the increase in energy level decreases the efficiency of absorption of amino acids, especially when they are unbalanced in the diet. This reinforces the proposal by Zangeronimo et al (2007) that the energy levels of the diets could interfere in the utilization of dietary nitrogen, especially in diets with low levels of CP, where the smallest increase caloric provided by these diets could lead to a greater amount of net energy available to animals and interference in the processes of deamination and transamination of amino acids. This, somehow, can also be true in the epithelial tissue of the mucosa of the gastrointestinal tract, i.e., excess dietary energy may have reduced the use of amino acids for this purpose.…”

Section: Resultssupporting

confidence: 85%

“…Zangeronimo et al (2007) also found no differences in the percentages of AN by reducing the dietary crude protein percentage in four units for growing animals.…”

Section: Resultsmentioning

confidence: 78%

“…This result differs from those found by Moreira et al (2004) who observed a quadratic effect for the variable / AN. However, this relationship may have been affected by the addition of other non-essential amino acids in the diet, for example, tryptophan (Oliveira, 2004;Zangeronimo et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

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Levels of true digestible lisiane and metabolizable energy for growing pigs: effect on nitrogen and energy balance

Chiaradia¹,

Zangerônimo

Fialho

et al. 2009

Ciênc. agrotec.

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An experiment was conducted at the Department of Animal Husbandry of Universidade Federal de Lavras aiming to study the nitrogen and energy balance in diets with reduced crude protein rates (CP) and different levels of energy and lysine for growing pigs. 52 castrated pigs (initial weight = 36.13 ± 2.8 kg) of high genetic potential were used, housed individually in metabolism cages (experimental unit). The treatments consisted of 12 diets with three levels of metabolizable energy (ME) (3060, 3230 and 3400 kcal / kg) and four of true digestible lysine (TDL) (0.7, 0.9, 1.1 and 1, 3%) with 14% CP plus a control diet with 3230 kcal ME / kg, 1.03% TDL and 18% CP. We used a DBC in time 3x4 +1 factorial design with four replications to verify the absorbed nitrogen (AN), N retained (NR), the NR / NA (%),absorbed energy (AE), retained energy (RE) and the ratio RE /AE (%). In relation retained nitrogen / absorbed nitrogen was declining linear regression (P <0.05) when 3400 kcal / kg was used, where the lowest levels (0.7 and 0.9%) of TDL showed the best results. In the study of energy balance, for the variables retained energy and the relationship between energy there was no difference (P> 0.05) between the control treatment and other experimental diets. It is concluded that the levels 3230 kcal / kg and 1.03% of TDL can be used without affecting the utilization of nitrogen by growing pigs in diets with reduced crude protein content.Index terms: Synthetic amino acids, nutrition, metabolism, ideal protein. RESUMOFoi conduzido um experimento no Departamento de Zootecnia da Universidade Federal de Lavras com o objetivo de estudar o balanço de nitrogênio e energético em rações contendo reduzido teor de proteína bruta (PB) e diferentes níveis de energia e lisina para suínos em crescimento. Foram utilizados 52 suínos machos castrados (peso inicial = 36,13 ± 2,8 kg) de alto potencial genético, alojados individualmente em gaiolas de metabolismo (unidade experimental). Os tratamentos consistiram em 12 dietas formuladas com três níveis de energia metabolizável (EM) (3060, 3230 e 3400 kcal/kg) e quatro de lisina digestível verdadeira (LISD) (0,7; 0,9; 1,1 e 1,3%) com 14% PB mais um tratamento controle, com 3230 kcal EM/kg, 1,03% LISD e 18% PB. Utilizouse um DBC no tempo em fatorial 3x4+1, com quatro repetições, para verificar o N absorvido (NA), N retido (NR), a relação NR/ NA (%), energia absorvida (EA), energia retida (ER) e a relação ER/EA (%). Na relação nitrogênio retido /nitrogênio absorvido houve regressão linear decrescente (P<0,05) quando 3400 kcal/kg foi utilizado, onde os menores níveis (0,7 e 0,9%) de LISD apresentaram os melhores resultados. No estudo do balanço energético, para a variáveis energia retida e a relação entre energia não houve diferença (P>0,05) entre o tratamento controle e as demais dietas experimentais. Conclui-se que os níveis 3230 kcal EM/kg e 1,03% de LISD podem ser utilizados sem afetar o aproveitamento do nitrogênio pelos suínos em crescimento, em rações com reduzido teor de proteína bruta.T...

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Section: Resultssupporting

confidence: 85%

“…Zangeronimo et al (2007) also found no differences in the percentages of AN by reducing the dietary crude protein percentage in four units for growing animals.…”

Section: Resultsmentioning

confidence: 78%

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Levels of true digestible lisiane and metabolizable energy for growing pigs: effect on nitrogen and energy balance

Chiaradia¹,

Zangerônimo

Fialho

et al. 2009

Ciênc. agrotec.

Self Cite

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“…Some works have showed that the nutrient manipulations in diet can influence the performance (AROUCA et al, 2007;ZANGERONIMO et al, 2009), nitrogen metabolism ZANGERONIMO et al, 2007a), physiologic parameters (ZANGERONIMO et al, 2007b) and carcass composition (OLIVEIRA et al, 2006). Other ones (SUSENBETH, 1995;TRINDADE NETO et al, 2004) observed differences in the protein deposition tax in detriment of lipid in pigs in nursery phase manipulating only the lysine levels in the diet.…”

Section: Introductionmentioning

confidence: 99%

Corporal composition of swine feed fron 10 to 20 kg with diet containing different levels of lysine and crude protein

Zangerônimo

Fialho²,

Murgas

et al. 2009

Ciênc. agrotec.

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The aim of this work was to verify the effect of different levels of true digestible lysine (TDL) and crude protein (CP) on diets on the carcass composition of the swine in the nursery phase. Eighty piglets Landrace x Large White, barrows and females, with initial weight of 9.1±1.2 kg and final weight of 21.5±4.8 kg, weaned at the 28 days, allotted in groups of two during 35 days in the nursery. A randomized block design in factorial 2x4 (two levels of CP -16 and 18% -and four of TDL -0.7; 0.9; 1.1 and 1.3%) with five repetitions was used. After weighing, one animal of each stall was sacrificed and the carcass utilized for determination of water (CWP), protein (CPP) and lipid (CLP) percentage and deposition tax of the protein (DTP) and lipid (DTL). There were no differences for CWP, but there was had quadratic effect of the lysine levels on the CPP and DTP in the carcasses only in 18% CP diets, being 1.02% of TDL that propitiated the best result for DTP. There was no difference in 16% CP diets. For the CLP, there were no differences when 18% CP diets were utilized, however there was had quadratic effect with 16% CP diets, being 0.99% the level of TDL that provided the higher deposition. For the DTL, the 1.08 and 1.00% of TDL resulting in higher values in 18 and 16% CP diets, respectively. One concluded that 18% CP diets is the ideal and the 1.02% of TDL must be kept for the best carcass composition of swine in the initial phase.Index terms: Synthetic amino acids, carcass composition, nutrition, piglets. RESUMOObjetivou-se verificar o efeito dos níveis de lisina digestível verdadeira (LDV) e proteína bruta (PB) nas rações sobre a composição de carcaça de suínos na fase inicial. Foram utilizados 80 suínos Landrace x Large White, machos castrados e fêmeas, com peso inicial de 9,1±1,2 kg e final de 21,5±4,8 kg, desmamados aos 28 dias, alojados em grupos de dois, durante 35 dias na creche. Foi utilizado um delineamento em blocos casualizados em esquema fatorial 2x4 (dois níveis de PB -16 e 18% e quatro de LDV -0,7; 0,9; 1,1 e 1,3%) com cinco repetições. Após a pesagem, um animal de cada baia foi abatido e as carcaças utilizadas para determinação da porcentagem de água (%A), proteína (%P) e lipídios (%L) e taxa de deposição de proteína (TDP) e lipídios (TDL). Não houve diferenças para %A na carcaça. Houve efeito quadrático dos níveis de lisina na %P e TDP na carcaça apenas em rações com 18% PB, sendo 1,02% de LDV o nível que proporcionou melhor resultado. Não houve diferença em rações com 16% PB. Para %L, não houve diferença quando 18% PB foi utilizado, porém houve efeito quadrático com 16% PB, sendo 0,99% o nível de LDV que proporcionou a maior deposição. Para TDL, os níveis de 1,08 e 1,00% de LDV resultaram em maiores valores em rações com 18 e 16% PB, respectivamente. Conclui-se que 18% PB na ração é o ideal e que 1,02% de LDV deve ser mantido para uma melhor composição de carcaça de suínos na fase inicial.Termos para indexação: Aminoácido sintético, composição da carcaça, nutrição, leitões.

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“…Some works have shown that nutrient manipulations in diets can influence the performance (AROUCA et al, 2007;ZANGERONIMO et al, 2009), nitrogen metabolism (OLIVEIRA et al, 2005;ZANGERONIMO et al, 2007a), physiologic parameters (ZANGERONIMO et al, 2007b) and carcass composition of swine .…”

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confidence: 99%

Performance and carcass characteristics of swine at 50 kg fed diets with different energy levels and reduced levels of crude protein

et al. 2009

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The aim of this work was to evaluate the effects of different levels of metabolic energy (ME) in diets with a reduced level of crude protein (CP) on the performance and carcass characteristics of growing swine. Thirty-two high-performance barrows (initial weight of 22.5 ± 1.43 kg and final weight of 50.81 ± 2.54 kg) were distributed in a randomized block design with four treatments (three levels of ME - 3,060, 3,230 and 3,400 kcal/kg - in diets with 14% CP, and one control treatment with 3,230 kcal ME/kg and 18% CP) and four replicates. The diets were formulated with a true digestible basis of amino acids present in the feed, with methionine and threonine concentrations corrected as a function of lysine levels. The animals were slaughtered and their carcasses were studied. The ME levels did not affect the average weight gain, the feed:gain ratio, the backfat thickness or the loin eye area. A higher carcass yield and a higher carcass meat:fat ratio were observed in the animals that received the 3,230 and 3,060 kcal/kg ME levels. Compared to the control treatment, only the 3,400 kcal/kg ME level had a lower average daily feed intake. It is concluded that the CP level in diet should be reduced from 18% to 14% and the metabolizable energy level should be increased, thus reducing the feed intake and increasing the carcass meat:fat ratio without affecting the animal weight gain.

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Efeito de níveis de lisina digestível verdadeira e proteína bruta na dieta sobre parâmetros morfo-fisiológicos e utilização do nitrogênio em suínos na fase inicial

Cited by 3 publications

References 10 publications

Levels of true digestible lisiane and metabolizable energy for growing pigs: effect on nitrogen and energy balance

Levels of true digestible lisiane and metabolizable energy for growing pigs: effect on nitrogen and energy balance

Corporal composition of swine feed fron 10 to 20 kg with diet containing different levels of lysine and crude protein

Performance and carcass characteristics of swine at 50 kg fed diets with different energy levels and reduced levels of crude protein

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