1. The impact of feeding growing-finishing pigs with reduced dietary protein levels on performance, carcass traits, meat quality and environmental impacts
- Author
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P. A. V. de Oliveira, Alexandre de Mello Kessler, J-Y. Dourmad, A. N. T. R. Monteiro, Teresinha Marisa Bertol, Arlei Coldebella, Universidade Federal do Rio Grande do Sul [Porto Alegre] (UFRGS), Brazilian Agricultural Research Corporation (Embrapa), Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE), 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), and AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA)
- Subjects
0301 basic medicine ,[SDV]Life Sciences [q-bio] ,Randomized block design ,Live weight ,chemistry.chemical_element ,Nutrient supplies ,Biology ,Environment ,environmental impact ,modelling ,03 medical and health sciences ,Fattening pigs ,Life cycle assessment ,Animal science ,nutrition animale ,analyse du cycle de vie ,modélisation ,2. Zero hunger ,General Veterinary ,business.industry ,Phosphorus ,0402 animal and dairy science ,Experimental Unit ,swine ,04 agricultural and veterinary sciences ,040201 dairy & animal science ,Nutrient content ,Biotechnology ,030104 developmental biology ,Dietary protein ,chemistry ,animal nutrition ,impact environnemental ,Animal Science and Zoology ,business ,porc - Abstract
The objective of this study was to evaluate the effect of reducing dietary nutrient content for pigs from 25 to 130 kg live weight, on performance, carcass traits, meat quality and environmental impact. Forty gilts and 40 barrows were distributed in a randomized block design with two treatments and 10 replications per treatment, with four animals per experimental unit. The feeding program was in four phases. Two diets were formulated for each feeding phase. One was adjusted using the InraPorc® model to minimize crude protein, amino acid and phosphorus excess (LN), and the other (ST) was formulated with standard Brazilian recommendations. No differences were found on performance. The mean ADG and ADFI were 0.919 and 2.46 kg/day, respectively. Carcass characteristics and meat quality were also not affected by the experimental diets. The average total feed cost was 6.8% lower (P
- Published
- 2017
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