Removing prophylactic antibiotics from pig feed: how does it affect their performance and health?

BMC Veterinary Research
Alessia DianaEdgar G Manzanilla

Abstract

Antibiotics (AB) are an important tool to tackle infectious disease in pig farms; however some research indicates that their frequent mis/over-use may contribute to the development of antibiotic resistance and the WHO has declared that this issue should be addressed. Little is known about the long term consequences of withdrawing prophylactic AB from pig feed; hence we aimed to assess its effects on performance and health of pigs from weaning to slaughter. Six batches of 140 pigs each were monitored on a commercial farm through the weaner and finisher stages to slaughter. In-feed antibiotics were not added to the feed for half of the pigs (NOI) and were added in the other half (ABI) within each batch for the whole weaner stage. Individual pigs in both treatments were treated with parenteral administrations if and when detected as ill or lame. Productive performance, parenteral treatments and mortality were recorded on farm and the presence of respiratory disease was recorded at slaughter. Pen was considered the experimental unit. ABI pigs showed higher growth (P = 0.018) and feed intake (P = 0.048) than NOI pigs in the first weaner stage but feed efficiency was not affected (NOI = 1.48 vs. ABI = 1.52). Despite an initial reduct...Continue Reading

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Citations

Aug 21, 2019·Frontiers in Veterinary Science·Lucy A CoyneGina L Pinchbeck
Dec 24, 2019·Frontiers in Veterinary Science·Agnès Waret-SzkutaDidier Raboisson
Jul 31, 2020·Environmental Science and Pollution Research International·Meilan XuYibing Ma
Jul 2, 2020·Irish Veterinary Journal·Hannah MartinConor G McAloon
Oct 17, 2020·Porcine Health Management·Lorcan O'NeillEdgar García Manzanilla
Feb 7, 2021·Applied and Environmental Microbiology·Paiboon TunsagoolGunnaporn Suriyaphol
Apr 4, 2021·Antibiotics·Rita Albernaz-GonçalvesMaria José Hötzel

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