LOW DOSE OF COPPER IS MORE EFFECTIVE ON INTESTINAL MORPHOLOGY IN WEANED PIGS

Autores

  • Willian Hideharu de Eiroz Okiyama Faculty of Animal Science and Food Engineering, University of São Paulo (FZEA-USP), Pirassununga – SP, Brazil
  • Maitê Vidal Mendonça University of Sao Paulo
  • Ana Paula Pinoti Pavaneli School of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ-USP), Pirassununga – SP, Brazil
  • Simone Maria Massami Kitamura Martins Faculty of Animal Science and Food Engineering, University of São Paulo (FZEA-USP), Pirassununga – SP, Brazil https://orcid.org/0000-0002-5895-3678
  • Marcus Antonio Zanetti Faculty of Animal Science and Food Engineering, University of São Paulo (FZEA-USP), Pirassununga – SP, Brazil

DOI:

https://doi.org/10.5380/avs.v25i4.69303

Palavras-chave:

Copper sulfate, pharmacological level, tribasic copper chloride, weaning

Resumo

The present experiment was carried out to determine the relation between pharmacological levels of copper (Cu) (125 and 200 mg/kg) and source (cooper sulfate (CuSO4) and tribasic copper chloride (TBCC)) on growth performance, diarrhea incidence and intestinal morphology of piglets after weaning. At 21 days of age, 96 weaned piglets were sorted by body weight (BW, 6.14 ± 0.269 kg) and randomly assigned to 4 treatments according to a block design of a 2 x 2 factorial arrangement: level (125 and 200 mg/kg) and source (CuSO4 or TBCC). Growth performance was evaluated by measuring BW, average daily feed intake (ADFI), average daily gain (ADG) and feed conversion ratio (FCR) from 21 to 63 days of age. Fecal score was evaluated daily and at 63 days of age tissue samples were collected from the duodenum, jejunum and ileum for intestinal morphology analysis. At this moment, it was evaluated villus height (VH), crypt depth (CD) and villus height to crypt depth ratio (VH:CD ratio). There was no difference between level and source (P>0.05) for any growth performance. Piglets fed 200 mg/kg TBCC had the lowest diarrhea frequency (P<0.05) in overall nursery period than the other treatments during the whole experimental period. Supplementation with 125 mg/kg increased VH (P<0.05) and VH:CD ratio (P<0.05) in the duodenum when compared to 200 mg/kg, regardless of the source. Based on our results, we can conclude that 125 mg/kg of Cu improve the VH and VH:CD ratio in the duodenum and may show growth performance results similar to 200 mg/kg of Cu.

Biografia do Autor

Willian Hideharu de Eiroz Okiyama, Faculty of Animal Science and Food Engineering, University of São Paulo (FZEA-USP), Pirassununga – SP, Brazil

Department of Animal Science, Faculty of Animal Science and Food Engineering, Avenue Duque de Caxias Norte, 225, Pirassununga, São Paulo, Brazil.

Maitê Vidal Mendonça, University of Sao Paulo

Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, Avenue Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil.

Ana Paula Pinoti Pavaneli, School of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ-USP), Pirassununga – SP, Brazil

Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, Avenue Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil.

Simone Maria Massami Kitamura Martins, Faculty of Animal Science and Food Engineering, University of São Paulo (FZEA-USP), Pirassununga – SP, Brazil

Department of Animal Science, Faculty of Animal Science and Food Engineering, Avenue Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil.

Marcus Antonio Zanetti, Faculty of Animal Science and Food Engineering, University of São Paulo (FZEA-USP), Pirassununga – SP, Brazil

Department of Animal Science, Faculty of Animal Science and Food Engineering, Avenue Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil.

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Publicado

2020-12-11

Como Citar

Okiyama, W. H. de E., Mendonça, M. V., Pavaneli, A. P. P., Martins, S. M. M. K., & Zanetti, M. A. (2020). LOW DOSE OF COPPER IS MORE EFFECTIVE ON INTESTINAL MORPHOLOGY IN WEANED PIGS. Archives of Veterinary Science, 25(4). https://doi.org/10.5380/avs.v25i4.69303

Edição

Seção

Nutrição Animal