Animal and management factors influencing grower and finisher pig performance and efficiency in European systems: a meta-analysis

Animal : an International Journal of Animal Bioscience
S L DouglasI Kyriazakis

Abstract

A meta-analysis on the effects of management and animal-based factors on the performance and feed efficiency of growing pigs can provide information on single factor and interaction effects absent in individual studies. This study analysed the effects of such factors on average daily gain (ADG), feed intake (FI) and feed conversion ratio (FCR) of grower and finisher pigs. The multivariate models identified significant effects of: (1) bedding (P<0.01), stage of growth (P<0.001) and the interaction bedding×lysine (P<0.001) on ADG. ADG was higher on straw compared with no bedding (710 v. 605 g/day). (2) FI was significantly affected by stage of growth (P<0.01), bedding (P<0.01), group composition (P<0.05), group size (P<0.01), feed CP content (P<0.01), ambient temperature (P<0.01) and the interaction between floor space and feed energy content (P<0.001). Pigs housed on straw had a lower FI in comparison with those without (1.44 v. 2.04 kg/day); a higher FI was seen for pigs separated by gender in comparison with mixed groups (2.05 v. 1.65 kg/day); FI had a negative linear relationship with group size, the CP content of the feed and ambient temperature. (3) Stage of growth (P<0.001), feed CP (P<0.001) and lysine content (P<0.001), ...Continue Reading

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Citations

Aug 2, 2017·International Journal of Molecular Sciences·Henry ReyerKlaus Wimmers
Dec 24, 2019·Animal : an International Journal of Animal Bioscience·M B JensenL J Pedersen
Jul 12, 2017·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·S Z Y GuyS Hermesch
May 6, 2021·PloS One·Rachel S E PedenFaical Akaichi
Aug 5, 2021·Porcine Health Management·Julia Grosse-KleimannLothar Kreienbrock

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