Bem-estar e qualidade da carne de suínos alimentados com dietas contendo milho geneticamente modificado

• Ano de defesa: 2013
• Autor(a) principal: Girão, Lúcio Vilela Carneiro [UNESP]
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Suino - Alimentação e rações; Nutrição animal; Milho - Nutrição; Plantas transgênicas; Alimentos geneticamente modificados; Swine - Feeding and feeds
• Link de acesso: http://hdl.handle.net/11449/110736

This research aimed to evaluate nutrient digestibility, nitrogen balance and performance of pigs in the growing and finishing phases. They were fed with diets containing hybrid common corn and genetically modified corn. Two experiments were conducted: apparent digestibility of diets containing hybrid common corn and transgenic corn, and performance evaluation of pigs fed with diets containing hybrid common corn and transgenic corn, in the growing and finishing phases. The design of the apparent digestibility experiment was in blocks using four treatments and seven replications totaling 28 crossbred (LW x LD) animals with an initial BW of 50 ± 1.1 kg. The animal was considered the experimental unit. The performance experiment addoted was randomized block design using with three treatments and ten replications. There were 60 crossbred barrows and gilts (LW x LD) animals with an average initial weight of 30 ± 2.2 kg. The experimental unit was the pen containing two animals. The digestibility experiment treatments were: reference diet-R1 containing hybrid corn (2B587®); R2- 60% of R1 and 40% of common hybrid corn (2B587®), R3- 60% of R1 and 40% of transgenic hybrid corn (2B587Hx®), and R4- 60% of R1 and 40% of transgenic hybrid corn (2B707Hx®). Performance experiment treatments were: D1-ration containing common hybrid corn (2B587®); D2-ration containing transgenic hybrid corn (2B587Hx®) and D3-ration containing transgenic hybrid corn (2B707Hx®). The data were analyzed using the SAS statistical software. No differences were observed between common hybrid corn and transgenic hybrid corn for corn digestibility parameters and performance variables (P > 0.05). Effects were found in nitrogen balance and digestibility (P < 0.05), probably these results are not directly linked to the presence of the Cry transgenic gene. It was concluded that there was no difference in nutrient digestibility, ...