Banca de DEFESA: ISIDRO ARGENTINA CHEMANE

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ISIDRO ARGENTINA CHEMANE
DATA : 24/09/2018
HORA: 09:00
LOCAL: SALA 1 - COORDENAÇÃO DE PÓS GRADUAÇÃO - EAJ
TÍTULO:

EVALUATION OF WOOD VINEGAR AS AN ALTERNATIVE PERFORMANCE POTENTIAL FOR BROILER

PALAVRAS-CHAVES:

poultry, performance, pyrolignous extract , vegetable extracts,  gastrointestinal sanity.

PÁGINAS: 74
GRANDE ÁREA: Ciências Agrárias
ÁREA: Zootecnia
SUBÁREA: Produção Animal
RESUMO:

Brazil is the second largest producer of poultry since 2015, with an annual production of 12 million tons and the first largest exporter in the world, exporting to 155 countries. Significant part of this production is assured by the use of antibiotic growth promoters (AGPs), banned in the main world markets, for promoting bacterial resistance and its residual effect. These phenomena are presumed to be at the origin of the emergence of super-resistant bacteria, which nullify the effects of drugs used in human medicine, thus constituting a serious threat to public health. This reality has stimulated the search for AGPs alternative to the use of antibiotics. The objective of this study was to evaluate  the effect of different levels of wood vinegar (WV) use as a growth promoter alternative to conventional antibiotic use (enramycin). A total of 504 one-day-old Cobb 500 pedigree broilers distributed in a completely randomized design were used in seven treatments (0, 0.5, 1.0, 1.5, 2.0, 2.5 % of WV and 115 ppm of enramycin), with six replicates and 12 birds per plot. The following variables were evaluated: weight gain, final weight, feed intake and feed conversion in the stages of 1-7; 8-21 and 22-42 days of age. The birds were slaughtered at 21 and 42 days of age to evaluate carcass, breast, supercoxa, thigh, intestine, heart, intestine length, carcass and parts yield, liver weight and lipid deposition in the liver . The effects of EP levels were estimated using linear and quadratic regression models and analysis of orthogonal contrasts. In the 1-7 day period there was no effect on body weight, weight gain and feed intake; however, there was an increasing linear effect on feed conversion (P <0.05). In phases 8-21 and 22-42 days of age there was no effect of WV. In the analysis of the viscera, weights of cuts  and yield of the carcass and parts of the animals slaughtered at 21 days of age, in none of the variables investigated presented a difference (P> 0.05) among the evaluated treatments. There was a linear effect (P <0.05) of body weight of animals slaughtered at 42 days of age; however, there was no effect (P> 0.05) on the other variables evaluated in this phase. Regarding the height and depth of the crypt of the villi in the three segments of the animals slaughtered at 21 and 42 days of age, no differences (P> 0.05) were observed between the treatments. In view of the results observed, it is concluded that wood vinegar does not present an effect as a growth promoter in an environment without sanitary challenge, as well as the use of antibiotic.

MEMBROS DA BANCA:
Externo ao Programa - 1079298 - ALEXANDRE SANTOS PIMENTA
Presidente - 1605626 - ELISANIE NEIVA MAGALHAES TEIXEIRA
Interno - 1323030 - JANETE GOUVEIA DE SOUZA
Externo à Instituição - JOSÉ JORDÃO FILHO - UFPB
Externo ao Programa - 2477216 - NAISANDRA BEZERRA DA SILVA FARIAS