Effect of observed individual data of performance and excretion on life cycle assessment of piglets
| Autor: | André Vinicius Sturzenegger Partyka, Paulo Cesar Pozza, Jean-Yves Dourmad, Laura Marcela Diaz-Huepa, A. N. T. R. Monteiro, Natália Y Sitanaka, Marcelise Regina Fachinello |
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| Přispěvatelé: | Depto. de zootecnia, Universidade Estadual de Maringá, Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE), AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences
Animal variability alimentation animale sevrage 010501 environmental sciences Biology Environment 01 natural sciences 7. Clean energy environmental impact nitrogen Excretion Animal science crude protein Individual data weaners lcsh:Agriculture (General) phosphorus soja Life-cycle assessment 0105 earth and related environmental sciences soya bean analyse du cycle de vie Dietary crude protein Nitrogen Weaners 2. Zero hunger azote brésil dietary crude protein animal variability weaning 0402 animal and dairy science swine excrétion 04 agricultural and veterinary sciences lcsh:S1-972 040201 dairy & animal science protéine brute Agricultural sciences phosphore variabilité des populations impact environnemental animal feeding environment Sciences agricoles porc |
| Zdroj: | Scientia Agricola Scientia Agricola, Escola Superior de Agricultura, 2019, 76 (2), pp.102-111. ⟨10.1590/1678-992x-2017-0094⟩ Scientia Agricola 2 (76), 102-111. (2019) Scientia Agricola, Vol 76, Iss 2, Pp 102-111 Scientia Agricola v.76 n.2 2019 Scientia Agrícola Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 0103-9016 1678-992X |
| DOI: | 10.1590/1678-992x-2017-0094⟩ |
| Popis: | 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 of digestible amino acids through industrial amino acid (IAA) addition. From Trial I and II data, the environmental impact was calculated for global warming potential, acidification potential, eutrophication potential, cumulative energy demand, terrestrial ecotoxicity and land occupation (LO). Total nitrogen excretion decreased by 0.226 g d−1 for each 1 g of reduction on daily nitrogen intake. However, there was no statistical difference (p > 0.05) among experimental treatments for all impact categories. For LO, there was a reduction (p = 0.078) of impact with CP reduction, which was 8 % lower with the LowCP diet, in comparison with HighCP. Dietary CP reduction for piglets from 15 to 30 kg, through IAA supplementation, reduced the environmental impact under LO, considering soybean meal from southern Brazil and observed individual data of performance and excretion. |
| Databáze: | OpenAIRE |
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