Tanino condensado de acácia-negra (Acacia mearnsii) na dieta de leitões de creche

• Ano de defesa: 2022
• Autor(a) principal: Schneider, Luciane Inês
• Orientador(a): Oliveira, Vladimir de
• Banca de defesa: Kessler, Alexandre de Mello, Gewehr, Clóvis Eliseu
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; Centro de Ciências Rurais
• Programa de Pós-Graduação: Programa de Pós-Graduação em Zootecnia
• Departamento: Zootecnia
• País: Brasil
• Palavras-chave em Português: Fitogênico; Leitões; Pós-desmame; Saúde intestinal
• Palavras-chave em Inglês: Gut health; Phytogenic additives; Piglets; Post-weaning
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
• Link de acesso: http://repositorio.ufsm.br/handle/1/24924

Phytogenic additives are examples of potential alternatives to decrease the digestive upsets in the first weeks after weaning piglets. Tannin is a polyphenolic compound which form complex molecules and may be a solution for weaning piglets diarrhea and gut health negative effects. This study aimed to evaluate the effects of Black-wattle condensed tannin extract inclusion in simple and complex diets on performance, fecal consistency score and serum haptoglobin level in weaned piglets. A total of 88 commercial breed weaning piglets, with initial body weight of 8.02 ± 1.21 kilograms (kg), were housed in a masonry facility and pens equipped with a feeder and a biteball drinker. The experimental period was 28 days, and the feeding program consisted of three diets (pre-starter I, pre-starter II and starter), with nutritional levels adjusted according to the phase. The animals were distributed in four treatments in a 2² factorial experiment: simple diet (DS), simple diet + tannin (DS+T), complex diet (DC) and complex diet + tannin (DC+T), with 11 replications and two piglets per pen. The design was a randomized block design according to the initial body weight. The animals were weekly weighed, and feed intake and leftovers were measuring. The faecal consistency score was determined twice a day, by two trained evaluators, by three weeks after weaning. Blood samples for serum haptoglobin concentration were collected at 7 and 14 days of the experiment. The addition of condensed tannin had no effect (P>0.05) on weaned piglets performance variables. The complexity of the diet also did not result in differences (P>0.05) in piglet performance. However, piglets fed DC+T diet had a lower incidence of liquid faeces in experimental period. And the piglets fed DS+T diet had a lower blood haptoglobin concentration level.