INFLUENCE OF DIFFERENT DEPTHS ON BEDDING PHYSICOCHEMICAL CHARACTERISITICS AND ON Salmonella sp. PREVALENCE IN PIGS DURING THE FINISHING PHASE. INFLUÊNCIA DE DIFERENTES ALTURAS NAS CARACTERÍSTICAS FISICO-QUÍMICAS DA CAMA E NA PREVALENCIA DE Salmonella sp. EM SUÍNOS DURANTE A TERMINAÇÃO
The main objective of this study was to evaluate two consecutive lots of swine production in floor of concrete and on bedding with two different depths. Environment parameters of the building had been evaluated, physical and chemistry of the bed, beyond the presence of Salmonella spp. in the systems...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Universidade Federal de Goiás
2009-04-01
|
Series: | Ciência Animal Brasileira |
Subjects: | |
Online Access: | http://www.revistas.ufg.br/index.php/vet/article/view/451 |
Summary: | The main objective of this study was to evaluate two consecutive lots of swine production in floor of concrete and on bedding with two different depths. Environment parameters of the building had been evaluated, physical and chemistry of the bed, beyond the presence of Salmonella spp. in the systems of floor and the animals in the moment of slaughter. The treatments had been constituted of two different depths of bed of rind of rice, 0.5 m (T1) and 0.25 m (T2), and a system with compact floor of concrete (T3). Thirty animals had been used, being 15 animals for repetition. Was registered temperature in the surface of the floors and middle of the pens in the three treatments, to the half depth in the middle of the pens for T1 and T2. Was registered the ambient temperature and the relative humidity of air in the building. pH, dry matter, carbon and nitrogen Was determined in the beds. Salmonella spp. was analysed in: feces, blood, bed, swab of the floor and animals at the moment of slaughter. The use of bedding for swine in growth and finishing independent of the its height, is viable, because it did not influence the parameters of thermal comfort and the prevalency of Salmonella spp., beyond allowing the transformation of the waste in material stabilized for agricultural use.<br /><br />KEY WORDS: Alimentary security, environment, system of production, thermal comfort.<br /> Este trabalho avaliou dois lotes consecutivos de suínos criados em piso de concreto e sobre cama com duas diferentes profundidades. Avaliaram-se os parâmetros ambientais da edificação, físico-químicos da cama, além da presença de Salmonella sp. nos sistemas de piso e nos animais no momento do abate. Os tratamentos foram constituídos de duas profundidades diferentes de cama de casca de arroz, 0,5 m (T1) e 0,25 m (T2), e um sistema com piso compacto de concreto (T3). Utilizaram-se trinta animais, sendo quinze animais por repetição. Registrou-se a temperatura na superfície dos pisos e centro das baias nos três tratamentos, à meia profundidade no centro das baias para T1 e T2. Mensuraram-se a temperatura ambiente e a umidade relativa do ar no interior das baias. Foram determinados pH, teor de matéria seca, carbono e nitrogênio das camas. A análise de Salmonella spp. foi feita em: fezes, sangue, cama, swab do piso e animais no momento do abate. A utilização de piso com cama para suínos nas fases de crescimento-terminação, independente da altura, é viável, pois não influenciou os parâmetros de conforto térmico e a prevalência de salmonela, além de permitir a transformação dos dejetos em material estabilizado para uso agrícola.<br /><br />PALAVRAS-CHAVES: Conforto térmico, meio ambiente, segurança alimentar, sistema de produção.<br /><br /> |
---|---|
ISSN: | 1518-2797 1089-6891 |