Perfil metabólico energético e enzimático hepático e sua influência no retorno à ciclicidade e ocorrência de infecções uterinas pós-parto em vacas leiteiras cruzadas Gir X Holandês

• Ano de defesa: 2018
• Autor(a) principal: Santos, Jacymara Dutra
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Ciências Veterinárias; Centro de Ciências Agrárias e Engenharias; UFES; Programa de Pós-Graduação em Ciências Veterinárias
• Palavras-chave em Português: Bovinos; Cetose; Citologia endometrial; Bovino; Bovino - Infecções; Bovino de leite; Citologia veterinária; Ciências Agrárias
• Link de acesso: http://repositorio.ufes.br/handle/10/7812

Metabolic and reproductive disorders have an economic impact on livestock production mainly affecting dairy cattle during post-partum reducing production. The aim of this study is verify the clinic and reproductive disorders influence, body condition score, metabolic energy and enzymatic liver function in the return of ovarian cyclicity and the occurrence of uterine infections during post-partum in dairy cattle. In this research was used 53 females crossbreed with Gyr x Holland from South of Espírito Santo. It was divided in two groups, first one primiparous cows with 19 females and the second one pluriparous cows with 34 females giving birth more than twice. These groups were evaluated during 15 days prepartum and during post-partum for 15, 30, 45 and 60 days. In addition, was evaluated as well in the physical exam cardiac and respiratory frequency, rectal temperature, weight and body condition score. Blood samples was collected by means of venipuncture process from coccygeal vein for serum evaluation. The concentrations of beta-hydroxybutyrate, total cholesterol and lipoproteins, alanine aminotransferase, gamma glutamyltransferase and alkaline phosphatase was check too. Gynecological exam was performed by rectal palpation and trans rectal ultrasound. At the same time, the uterus was assessing by the size, position, uterine horns consistence and symmetry. It was important to follow uterine and ovary involution observing size and ovarian structures for return of luteal ovarian cycle activity. Moreover, vaginoscopy exam was done to evaluated characteristic and presence of vaginal discharge. The uterine infections were classifying as clinical metritis and puerperal; clinical endometritis according to characteristics and vaginal discharge during time; and subclinical endometritis when diagnosed by endometrial cytology. The Parametric variables was submitted on Turkey test and non-parametric variables on Kruskall-Wallis test. Spearman test wasuses to correlation, with 5% significance in all levels. Clinic parameters as cardiac frequency, respiratory frequency and temperature was found normal in pattern of species. Body condition score diversified for 4 to 2,5 and weight for 273 to 315 kg. It was observed that body condition score and weight was low at D-15 compared to other days. For this reason, is important to add strategies that minimize the effects of lost weight during post-partum. The weight observed was different between groups at distinct time. During 60 days’ post-partum 33,96% of female cows had return to ovarian activity. Ovarian size was not different between groups or moments. Uterus and cervix size decrease between D-15 and other days, however do not observed difference between groups. The incidence of uterine infections was 33,96%, being that 27,78% of cows with infection was primiparous. Dairy cattle that had infection 50% acquired clinical metritis of which 33,33% was primiparous, and 50% acquired clinical endometritis being 22,22% primiparous as well. Endometritis subclinical was not acquired in the groups. The decrease of body condition score was not an influence on occurrence of uterine infections and return of ovarian cyclicity. Correlation between ketosis and uterine infection do not occur, similarly for post-partum ovarian cyclicity return. Changes in metabolic enzymatic liver function was not detected in this research.