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Dietary net energy mainly affects growth performance and pork quality of finishing pigs Scientia Agricola
Moreira,Camila de Araújo; Bonagúrio,Lucas Pimentel; Esteves,Lucas Antonio Costa; Sitanaka,Natália Yoko; Pozza,Paulo Cesar.
ABSTRACT The present study was carried out to evaluate the effect of net energy levels in diets for barrows, from 70 to 100 kg, on performance, plasma parameters and carcass characteristics. Two experiments were carried out: in the first (Experiment I), a metabolism assay was carried out to estimate the net energy (NE) of experimental diets. Twelve crossbred barrows, averaging 85.74 ± 6.80 kg initial body weight, were distributed in a randomized block design with two metabolizable energy (ME) levels (3100 and 3500 kcal kg–1) with six replicates and one animal per experimental unit. In the second (Experiment II), 45 castrated male pigs were used, averaging 70.10 ± 1.26 kg of initial body weight distributed in a randomized block design, with five NE levels...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Body weight gain; Prediction equation; Energy requirement for production; Qualitative parameters of meat pigs.
Ano: 2022 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000100401
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Effect of observed individual data of performance and excretion on life cycle assessment of piglets Scientia Agricola
Monteiro,Alessandra Nardina Trícia Rigo; Dourmad,Jean-Yves; Fachinello,Marcelise Regina; Diaz-Huepa,Laura Marcela; Sitanaka,Natália Yoko; Partyka,André Vinícius Sturzenegger; Pozza,Paulo Cesar.
ABSTRACT: The objective was to evaluate the impact of producing piglets fed diets with different crude protein (CP) levels through life cycle assessment and experimental data. In Trial I (performance), 28 crossbred barrow piglets, with an initial average weight of 15.3 ± 1.15 kg were divided into a randomized block design with four treatments, seven replications and one animal per experimental unit. In Trial II (nitrogen and phosphorus balance), 20 crossbred barrow piglets with an average weight of 21.4 ± 1.62 kg were divided in a randomized block design with four treatments, five replications and one animal per experimental unit. Four experimental feeds were evaluated: HighCP, CP18, CP17 and LowCP, with 19, 18, 17 and 16 % of CP, meeting the requirements...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal variability; Dietary crude protein; Environment; Nitrogen; Weaners.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001200102
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