Banca de DEFESA: YUSO HENRIQUE TUTIDA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : YUSO HENRIQUE TUTIDA
DATA : 26/07/2019
HORA: 09:00
LOCAL: Sala de Reuniões – Embrapa Suínos e Aves - Concórdia-SC.
TÍTULO:

Strategies to reduce the use of antibiotics in pig production.

PALAVRAS-CHAVES:

Sanity, Probiotics, Prebiotics, Essential oils, Organic acids.

PÁGINAS: 45
GRANDE ÁREA: Ciências Agrárias
ÁREA: Medicina Veterinária
RESUMO:

In animal production, the indiscriminate use of antimicrobials, together with administration failures, lead to the selection of bacteria resistant to a wide variety of antimicrobials. One strategy is to use products that can improve animal health by reducing the need of antimicrobials such as prebiotics, probiotics, organic acids and essential oils. The objective of this study was to compare the use of alternative products with the conventional preventive antibiotic therapy used in feed to growing/finishing phase in pig production. We used 1056 growing and finishing phase pigs from 65 to 190 days old, housed in 2 stall with 48 bays each. Animals were submitted to six treatments with 16 replicates: T1: no antibiotics; T2: antibiotic; T3: prebiotic; T4: probiotic; T5: essential oil; and T6: organic acid. Products were added to the food at the food factory. Individual weightings were performed at each feed change to determine individual weight gain and mean daily gain. Data feed intake and leftover, clinical occurrences, mortality, cough and sneezing index and presence of diarrhea were registered. Animals with clinical signs during treatment were identified in a clinical case file and submitted to antibiotic injectable treatment. At the slaughterhouse, the index of pneumonia and pleurisy (IPP), gastric ulcer index and carcass typing were evaluated. There was no difference (P>0.05) for feed intake conversion ratio between treatments. The mean weight gain was 107.06 ± 0.9 kg, with an average daily gain of 856.49 ± 7.7 g and a mean carcass weight of 92.4 ± 0.7 kg, with no difference (P>0.05). For cough and sneeze index, there was also no significance among the groups tested (P>0.05). The need for injectable medication of animals with clinical symptomatology represented on average R$ 1.98 per animal, and no difference was observed between groups (P>0.05). During the 125 days of the experiment, 27 animals died (2.55%) due to different causes, with no difference between treatments (P>0.05). All treatments were high frequency of IPP (>0.90). Animals used in this study were from the company's conventional production system, therefore, submitted to challenges of infection pressure. Nevertheless, the use of antibiotic therapy in feed and the use of antibiotic alternatives did not bring benefit to the performance of the animals. Results show that reduction and/or withdrawal of antibiotics in pigs' feed can be considered as a future perspective for the production of growing and finishing pigs.

MEMBROS DA BANCA:
Externa à Instituição - Djane Dallanora
Interno - 2648941 - IVAN BIANCHI
Presidente - 564.081.370-91 - JALUSA DEON KICH - EMBRAPA
Externo à Instituição - NELSON MORÉS