Nitrogen balance of starting barrow pigs fed on increasing lysine levels

Moreira, Ivan; Fraga, Alessandro Luís; Paiano, Diovani; Oliveira, Gisele Cristina de; Scapinello, Cláudio; Martins, Elias Nunes

doi:10.1590/s1516-89132004000100012

Cited by 10 publications

(11 citation statements)

References 8 publications

(11 reference statements)

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“…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: Resultscontrasting

confidence: 99%

“…Moreover, the variation in levels of lysine ratio of 0.7 to 1.3%, the level in 3400 kcal / kg, provided a difference in the retention of N 13.44%, indicating the importance of manipulating the levels this amino acid in the diet. Moreira et al (2004) observed a quadratic effect for nitrogen retention by working with diets with 3400 kcal / kg digestible energy and 14% crude protein supplemented with lysine (0.8, 1.0, 1.2 and 1.4%) for barrows from 20 kg. Similar data for reduced levels of CP are reported by Oliveira (2004).…”

Section: Resultsmentioning

confidence: 97%

See 1 more Smart Citation

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: Resultscontrasting

confidence: 99%

Section: Resultsmentioning

confidence: 97%

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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“…Nitrogen digestibility as well as balanced or retained nitrogen (NR) were determined by measuring nitrogen intake (dry matter (DM) basis) and nitrogen excretion. Nitrogen absorption (NAB), BVFP and NPU were calculated according to [9]. The coefficient of total tract apparent (CTTAD) and CAM were calculated using equations as shown in [10].…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Performance, Nitrogen Metabolism and Tissue Composition in Barrows Fed an n-3 PUFA-Rich Diet

Hăbeanu

Lefter

Gheorghe

et al. 2019

Animals

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We investigated changes in nitrogen metabolism and chemical, fatty acid (FA) and amino acid (AA) composition in tissues (longissimus dorsi (LD) and semitendinosus (ST) muscles, heart, spleen, liver and cecum) following the dietary addition of extruded linseed and walnut meal (50:50 mix). Plasma creatinine and urea nitrogen were determined as well. Two trials were designed using barrows (five replicates) allotted in two groups [(control, (SM) and experimental, (LEW))] in metabolic cages. The experimental diet rich in n-3 FA led to a significant increase of retained nitrogen (>8.09% in the LEW group). The biological value of feed protein was 14.8% higher in the LEW group than in the SM group. LD muscles from the SM group and liver from the LEW group had greater nitrogen contents, whereas the heart and spleen had lower concentrations of nitrogen in the LEW group. Diet had a pronounced effect on n-3 FA, particularly on α-linolenic fatty acid (ALA) (p < 0.0001). The highest levels of ALA were recorded in the cecum (>6.06 times in LEW) and heart (>5.44 times in LEW). The highest level of lysine was noticed in the LD muscle (>2.1% in SM). An n-3-rich diet significantly reduced the amount of nitrogen excreted; greater than 40% nitrogen was retained, thus improving the meat composition.

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“…Ferric oxide (Fe 2 O 3 ) was added (2.0 %) to mark the beginning and the end of collection period. Total feces and urine were collected daily, in plastic bags and stored in a freezer until laboratory analyses (Moreira et al, 2004). The digestibility coefficients of dry matter (DCDM), crude protein (DCCP), gross energy (DCGE) and the coefficient of metabolization of gross energy (CMGE) of SH were calculated, considering total collection method (Fialho et al, 1979 andMoreira et al, 1994).…”

Section: Experiments I (Digestibility Trial)mentioning

confidence: 99%

Effects of different grinding levels (particle size) of soybean hull on starting pigs performance and digestibility

Moreira

Kutschenko

Paiano

et al. 2009

Braz. arch. biol. technol.

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Nitrogen balance of starting barrow pigs fed on increasing lysine levels

Cited by 10 publications

References 8 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

Evaluation of Performance, Nitrogen Metabolism and Tissue Composition in Barrows Fed an n-3 PUFA-Rich Diet

Effects of different grinding levels (particle size) of soybean hull on starting pigs performance and digestibility

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