Made available in DSpace on 2016-12-08T16:24:05Z (GMT). No. of bitstreams: 1
PGCA10MA033.pdf: 45133696 bytes, checksum: 53bbc7aa54baff70e775a4837351cdff (MD5)
Previous issue date: 2010-08-11 / This paper presents the results of sanitary evaluation of pigs raised in a wean-to-finish system
(WF). The experiment was carried out in the Midwestern region of Santa Catarina, from
January to June 2009. During this period, eight herds were evaluated with a total of 3545 pigs,
weaned with an average of 28 days of age and 8.22 kg of body weight. Data were collected
through eight sanitary assessments, performed on days 0, 7, 14, 38, 69, 102, 137 and 143 after
wean, which were called assessment 0, 1, 2, 3, 4, 5, 6 and 7 respectively . The assessment 0
consisted of an overview of the herds and facilities conditions at the time of the housing of the
animals. The assessments 1, 2, 3, 4, 5 and 6 consisted of tutoring clinics, being evaluated rates
of diarrhea, coughing and sneezing. The assessment 7 consisted in a slaughter evaluation for
pulmonary, renal, hepatic and gastric lesions. Additional clinical evaluations, with
achievement of necropsies followed by collection of samples for bacteriological and
histopathological exams were made in animals when there were health problems in the
respective herd. The rates of coughing and sneezing in the evaluated herds increased at the
13th and 18th weeks of age. The highest rate of diarrhea was observed during the nursery
period in the first assessment, when Escherichia coli and Yersinia enterocolitica were
isolated. During the growing and finishing period, Brachyspira sp. (114 days old), Salmonella
sp. (105 days old) and Lawsonia intracelullaris (88 days old) were diagnosed. During the
nursery period the most observed diseases was post-weaning diarrhea, and during the growing
and finishing period the main disease was PCV2 assosiated disease. During the nursery period
the mortality rate ranged from 0 to 1.08% and during the growing and finishing period it
ranged from 1.82 to 6.72%. The main causes of mortality determined were circovirosis,
Porcine intestinal distencion syndrome and septicemia, which accounted for 25.20%, 11.02%
and 6.30% respectively. The rate of carcass condemnation by SIF (Federal Inspection) ranged
from 1.02 to 6.71%, and the main cause was pleurisy (23.08 to 100%). The frequency of
atrophic rhinitis and pneumonia ranged from 13 to 70% and 16.7 to 72.7% and the which
index IRA and IPP ranged from 0.13 to 1.0 and 0.25 to 1.27, respectively. Renal lesions
ranged from 33 to 50%, and nephritis was the most observed. The percentage of liver with
white spots ranged from 4 to 37% of animals. Lesions in the pars esophageal of the stomach
were observed in all the herds with frequency between 70 and 100%. The lesion grade 1 was
the most frequently / O trabalho descreve a avaliação sanitária de suínos criados no sistema wean-to-finish (WF). O
projeto foi realizado na região do Meio Oeste de Santa Catarina, no período de janeiro a junho
de 2009. Foram acompanhadas oito granjas, com total de 3.545 suínos, criados no sistema
wean-to-finish, alojados com média de 28 dias de idade e 8,22Kg de peso vivo. Os dados
foram obtidos através de oito avaliações sanitárias, realizadas nos dias 0, 7, 14, 38, 69, 102,
137 e 143 de alojamento, sendo denominadas avaliações 0, 1, 2, 3, 4, 5, 6 e 7 respectivamente.
A avaliação 0 consistiu em visualização geral dos suínos e condições das instalações no
momento do alojamento. As avaliações 1, 2, 3, 4, 5 e 6 consistiram em monitorias clínicas,
sendo avaliados índices de diarreia, tosse e espirro. A avaliação 7 consistiu em monitoria de
abate para enfermidades respiratórias, renais, hepáticas e úlcera gástrica. Avaliações clínicas
adicionais, com realizações de necropsias e/ou coleta de material para análises bacteriológicas
e histopatológicas, foram efetuadas quando ocorreram problemas sanitários nas granjas. As
frequências de tosse e espirro nas granjas avaliadas aumentaram na 13a e 18a semanas de
idade. O maior índice de diarreia foi observado no período de creche, na primeira avaliação,
sendo isolado Escherichia coli e Yersinia enterocolitica. Na fase de crescimento e terminação
foi diagnosticado Brachyspira sp. (86 dias de alojamento/114 dias de idade), Salmonella sp.
(77 dias de alojamento/105 dias de idade) e Lawsonia intracelullaris (60 dias de
alojamento/88 dias de idade). No período de creche a doença mais observada foi a diarreia
pós desmame e na fase de crescimento e terminação foi a circovirose. A mortalidade na fase
de creche variou de 0,00% a 1,08% e na fase de crescimento e terminação de 1,82% a 6,72%,
entre granjas. As principais causas de mortalidade determinadas foram a circovirose seguida
de Síndrome da distensão intestinal suína (SDI) e septicemia, que representaram 25,20%,
11,02% e 6,30%, respectivamente. O desvio de carcaça pelo SIF variou de 1,02 a 6,71%,
sendo a pleurisia a principal causa (23,08 a 100%). As frequências de rinite atrófica
progressiva e pneumonia variaram de 13% a 70% e 16,7% a 72,7%, dos animais avaliados e
os IRAP e IPP variaram de 0,13 a 1,0 e 0,25 a 1,27, respectivamente. As lesões renais
variaram de 33 a 50%, sendo a nefrite a mais prevalente. A percentagem de fígado com
manchas brancas variou de 4 a 37%. Em todas as granjas observou-se lesão na pars esofágica
do estômago, com frequência de 70 a 100%, sendo a lesão de grau 1 a mais observada
| Identifer | oai:union.ndltd.org:IBICT/oai:tede.udesc.br #179.97.105.11:handle/806 |
| Date | 11 August 2010 |
| Creators | Gabardo, Michelle de Paula |
| Contributors | Traverso, Sandra Davi |
| Publisher | Universidade do Estado de Santa Catarina, Mestrado em Ciência Animal, UDESC, BR, Ciências Veterinárias |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UDESC, instname:Universidade do Estado de Santa Catarina, instacron:UDESC |
| Rights | info:eu-repo/semantics/openAccess |
Page generated in 0.003 seconds