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Applying precision feeding to improve the nitrogen efficiency of swine production: a review of possible practices and obstacles Ciência Rural
Monteiro,Alessandra Nardina Trícia Rigo; Bertol,Teresinha Marisa; Kessler,Alexandre de Mello.
ABSTRACT: Optimizing nutrient efficiency is essential in order to increase sustainability of pig production systems, especially where the growing demand for food must be met at an affordable cost, without compromising environmental resources. To make this happen, it is necessary to develop efficient methods to accurately estimate the nutritional requirements of animals, as well as develop equipment and systems that allow for applying such expertise in the production system. Estimating the nutritional requirement of pigs through mathematical models, considering several factors that can impact the requirement, is a key factor to reduce the environmental load from pig production. Likewise, feed formulation and feeding programs, can help to achieve this. In...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diet formulation; Environmental impact; Modelling; Nutritional requirement; Pig.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700653
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Availability of betaine present in fine wheat bran in diets for growing pigs R. Bras. Zootec.
Somensi,Marcelo Luiz; Monteiro,Alessandra Nardina Trícia Rigo; Bockor,Luciane; Marx,Fábio Ritter; Vieira,Marcia de Souza; Kessler,Alexandre de Mello.
ABSTRACT The objective of this paper was to investigate the availability of betaine present in fine wheat bran (FWB) in diets for growing pigs. We used thirty crossbred intact males, housed individually in metabolic cages and distributed in a randomized block design, with five treatments and six replicates. Blocks consisted of two periods of 15 days. Average initial body weights were 32.00±1.30 and 44.90±1.32 kg, in the first and second periods, respectively. Treatments were modified only at the level of methionine plus cysteine (Met+Cys) required and the Met+Cys sources, consisting of a negative control (NC), formulated with 80% of Met+Cys requirements, and four positive controls (PC): PCMet - NC supplemented with 1.2 g kg−1 of DL-methionine; PCBet - NC...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Byproduct; Methionine; Nutrition; Swine.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100500
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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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Life cycle assessment as a tool to evaluate the impact of reducing crude protein in pig diets Ciência Rural
Monteiro,Alessandra Nardina Trícia Rigo; Dourmad,Jean-Yves; Pozza,Paulo Cesar.
ABSTRACT: Environmental impacts of livestock systems, especially pig production, have come under increasing debate in recent years. The challenge is in meeting the growing demand for food at an affordable cost, without compromising environmental integrity. Previous studies have shown that feed production is responsible for the majority of CO2-eq. emission resulting from pig farming systems. This seems to indicate that feed strategies could be an effective tool to achieve the sustainability of the pork chain. Therefore, dietary crude protein reduction, through the addition of industrial amino acids, lessens the nitrogen excretion by pigs and, consequently, could mitigate the effects on the environment of pig production. In this sense, to effectively...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crude protein; Environmental impact; Global warming potential; Greenhouse gases; Nutrient.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600653
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Methionine + cystine levels and vitamin B6 supplementation on performance and enzyme expression of methionine metabolism of gilts from 75 to 100 kg R. Bras. Zootec.
Sangali,Cleiton Pagliari; Gasparino,Eliane; Vasconcellos,Ricardo Souza; Fachinello,Marcelise Regina; Monteiro,Alessandra Nardina Trícia Rigo; Esteves,Lucas Antonio Costa; Bonagurio,Lucas Pimentel; Pozza,Paulo Cesar.
ABSTRACT This study was carried out to evaluate the effect of different levels of standardized ileal digestible (SID) methionine + cystine (Met+Cys) and vitamin B6 supplementation on the performance, blood variables, and gene expression of enzymes involved in methionine metabolism in female pigs between 75 and 100 kg. Fifty six female pigs were used (Talent × Topigs 20), averaging 75.06±1.68 kg in initial weight, allotted in a completely randomized block design arranged in a 2 × 4 factorial scheme, composed of two vitamin B6 supplementation levels (1.58 and 3.58 mg/kg) and four levels of SID Met+Cys (0.370, 0.470, 0.570, and 0.670%), with seven replicates and one animal per experimental unit. No interactions between vitamin B6 supplementation and SID...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blood variable; Cystathionine-γ-lyase; Homocysteine; Methionine synthase; Performance; Pigs.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000300223
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The requirement of valine for gilts in the initial phase is not influenced by moderate levels of leucine R. Bras. Zootec.
Huepa,Laura Marcela Diaz; Castilha,Leandro Dalcin; Ferreira,Silvia Letícia; Monteiro,Alessandra Nardina Trícia Rigo; Costa,Alcides Emanuel Rodrigues da; Giraldo,Jesus Alejandro Botero; Furlan,Antonio Claudio; Pozza,Paulo Cesar.
ABSTRACT The objective of this study was to evaluate the standardized ileal digestible (SID) valine and SID leucine levels on performance, backfat thickness, longissimus dorsi depth, and biochemical blood parameters of starting gilts. A total of 72 gilts, with initial weight of 15.16±1.15 kg, were distributed in a randomized block design in a 2 × 4 factorial scheme, comprised of two SID leucine levels (1.20 and 1.77%) and four SID valine levels (0.58, 0.73, 0.88, and 1.03%), with nine replicates and one animal per experimental unit. No interactions were observed for growth performance parameters. Final weight and average daily gain presented linear and quadratic effects. Setting data to the quadratic model associated with the Linear Response Plateau model,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antagonism; Blood parameters; Growth performance.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100513
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Valor nutricional e energia metabolizável de subprodutos do trigo utilizados para alimentação de suínos em crescimento PAB
Wesendonck,William Rui; Kessler,Alexandre de Mello; Ribeiro,Andréa Machado Leal; Somensi,Marcelo Luiz; Bockor,Luciane; Dadalt,Julio Cezar; Monteiro,Alessandra Nardina Trícia Rigo; Marx,Fábio Ritter.
O objetivo deste trabalho foi avaliar o valor nutricional e energético de subprodutos do trigo, em dietas para suínos em crescimento, e obter equações de predição da energia metabolizável. Foram utilizados 36 suínos machos, castrados, alojados em gaiolas metabólicas individuais. Realizou-se a coleta total de fezes e urina em dois períodos de dez dias: cinco para adaptação e cinco para coleta. Utilizou-se o delineamento de blocos ao acaso, tendo-se considerado o período de coleta como bloco, com seis tratamentos e seis repetições. A dieta referência foi substituída em 30% por um dos subprodutos testados: farinheta, farelo fino, farelo de trigo, farelo grosso e farelo grosso moído; este último usado para avaliar a influência da granulometria na...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alimentos alternativos; Digestibilidade; Fibra; Granulometria; Metabolizabilidade.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000200011
Registros recuperados: 7
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