Hemograma e bioquímica sérica auxiliar em bezerros mestiços neonatos e ocorrência de enfermidades

Rengifo, Silvana Acosta; Silva, R.A.; Botteon, R.C.C.M.; Botteon, Paulo de Tarso Landgraf

doi:10.1590/s0102-09352010000400033

Cited by 8 publications

(8 citation statements)

References 7 publications

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“…The significantly higher levels of total protein and globulins in Senepol compared to Holstein x Gir crossbred calves may have been caused by a higher concentration of colostral immunoglobulins (RENGIFO et al, 2010). The high serum globulin levels resulted in low A:G ratios, but passive transfer of immunity was adequate in the two breeds, as shown by the high globulin levels.…”

Section: Introductionmentioning

confidence: 97%

Serum biochemistry profile in newborn Senepol and crossbred Holstein x Gir calves aged three to five days in Uberlândia, Minas Gerais, Brazil

Gomes

Rodrigues

Souza

et al. 2016

SCA

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This study aimed to evaluate the physiological variations in the serum biochemical profile of neonate (3-5 days old) Senepol and crossbreed Holstein x Gir calves in Uberlândia, state of Minas Gerais, Brazil, and to compare values between breeds and sexes. In total, 168 healthy Senepol (n = 80, 28 females and 52 males) and crossbred Holstein x Gir (n = 88, 49 females and 39 males) calves were evaluated. From each animal, approximately 5 mL of blood was collected by jugular venipuncture into a sterile tube without anticoagulant to obtain serum. Serum concentrations of total protein, albumin, creatinine, urea, total cholesterol, triglycerides, calcium, and phosphorus; and the activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase, and gamma-glutamyl transferase (GGT) were determined on a automated multichannel analyzer. There were significant differences (p < 0.05) in serum concentrations for total protein, globulin, albumin/globulin ratio (A:G), creatinine, urea, phosphorus, calcium/phosphorus ratio (Ca:P), AST, and GGT between Senepol calves and crossbred Holstein x Gir calves, but no significant differences in serum concentrations were observed between male and female calves for either breed (p > 0.05). It was concluded that the serum biochemistry profile of newborn Senepol and crossbred Holstein x Gir calves was affected by differences in colostrum intake management and breed characteristics. Also, no differences in blood parameters were observed between male and female calves.

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Section: Introductionmentioning

confidence: 97%

Serum biochemistry profile in newborn Senepol and crossbred Holstein x Gir calves aged three to five days in Uberlândia, Minas Gerais, Brazil

Gomes

Rodrigues

Souza

et al. 2016

SCA

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“…Contagem mais baixa de hemácias ao nascimento difere de outros estudos (Pinna et al, 2001;Rengifo et al, 2010;Benesi et al, 2012;Rocha et al, 2013, Novo et al, 2015Baccili et al, 2018;Franciosi et al, 2018) provavelmente em função do momento de coleta da amostra, que é bastante variável entre os estudos. Outros estudos com raças diferentes (Birgel Junior, 1991;Bomfim, 1995;Marçal et al, 1995;Távora, 1997;Gonçalves et al, 2001;Paula Neto, 2004) evidenciaram aumento do VCM, sem distinção de idade.…”

Section: Resultsunclassified

Parâmetros hematológicos de bezerros leiteiros mestiços do nascimento aos 15 dias de idade

Mattos

Terra

Botteon

2021

RSD

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Ao nascer bezerros possuem características metabólicas semelhantes aos monogástricos e os parâmetros hematológicos variam conforme a fase de desenvolvimento. Ainda são poucos os dados publicados que permitem concluir com segurança se alterações hematológicas de neonatos são decorrentes de enfermidades ou devido à processos fisiológicos. Assim, este estudo teve como objetivo avaliar a hematologia de 15 bezerros leiteiros mestiços do nascimento aos 15 dias de idade, amamentados pela mãe no primeiro momento pós-parto e, posteriormente, com colostro ou leite de manhã e à tarde, por meio de baldes.A partir do terceiro dia de vida foi ofertado alimento sólido (volumoso (feno) e concentrado). Em até 2 horas após o nascimento, com12 horas, e nos dias dois, três, cinco, sete, 10, 12 e 15 foram colhidas amostras de sangue em frascos com EDTA para a realização e hemograma. Houve aumento (p≥0,05) na contagem de hemácias entre o nascimento e 12 horas e estabilização a seguir. O VCM teve redução do nascimento aos 15 dias. O VG ficou próximo do limite da normalidade. Na média as concentrações de fibrinogênio foram normais ao longo dos 15 dias, sendo os valores mais elevados entre três e sete dias (p<0,01). As menores e maiores médias de PPT foram 6,28±0,78 g/dL aos cinco dias, e 6,65±1,03 aos 15 dias. Leucócitos e neutrófilos segmentados foram ligeiramente elevados e os linfócitos diminuídos 12 horas após o nascimento. Em seguida, os valores inverteram-se. Conclui-se que as variações observadas são atribuídas a mudanças fisiológicas, sendo a influência do fator etário significativa.

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“…No entanto, maiores valores foram encontrados para a raça Crioula Lageana variedade mocha quando comparado a raça Aberdeen Angus aos 120 dias de vida (M6). O aumento da concentração de fibrinogênio plasmático ocorre em resposta a processos inflamatórios e/ou infecciosos, sendo a onfalite e diarreia causas comuns em bezerros [22]. No entanto, estas alterações não foram observadas nos bezerros avaliados durante o período experimental no presente estudo.…”

Section: Discussionunclassified

“…A mortalidade de bezerros nos primeiros meses de vida representa perdas econômicas consideráveis para a bovinocultura mundial [2,13,10,16]. O período neonatal é marcado por rápidas e intensas modificações do quadro hematológico, caracterizando-se ainda, por maior susceptibilidade às doenças [20][21][22]. Nesse contexto, a hematologia assume fundamental importância, especialmente nos diagnósticos e prognósticos das enfermidades [23].…”

Section: Introductionunclassified

Hemogram, Fibrinogen Concentration and Plasma Total Protein from Calves of Criollo Lageano Breed Variety Hornless and Aberdeen Angus Breed (Red Angus) on the First Six Months of Life

Schade

Rossi

Saito

et al. 2016

Acta Scientiae. Vet.

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Background: Neonatal period in bovine presents important variations in hematologic and immunologic parameters, and the resulting mortality rates may be due to increased susceptibility to disease. Race, age, environmental, climate and management factors are sources of CBC's parameters variation in cattle. The objective of this study is to evaluate and compare the CBC variables and concentrations of total protein (PTP) and plasma fibrinogen calves of Criolo Lageano Breed variety hornless and Aberdeen Angus (Red Angus) in the first six months of life, which are produced under extensive management at the Planalto Serrano Catarinense (southern Brazil). Materials, Methods & Results:Two groups were selected, comprising 11 calves of Hornless Criolo Lageano and 14 calves of the Aberdeen Angus breed (Red Angus). Blood samples were collected for complete blood count and determination of total protein concentrations, and plasma fibrinogen in the periods between 24 h and 36, 15, 30, 60, 90, 120, 150 and 180 days of life. The statistical analysis was performed using analysis of variance for repeated measures (ANOVA) and Tukey's test (P < 0.05). During the experimental period infestations by ticks in both races were observed. In the first month of life, blood smears revealed the presence of blood parasites of the genus Babesia spp. and Anaplasma sp. The fluctuations seen for erythrocyte in the neonatal period (30 days), although not significant, consisted of raising the number of values of erythrocytes, hemoglobin (Hb) and packed cell volume (PCV), and reduction in mean corpuscular volume values (MCV). From 90 days of age there was a significant reduction in number of red blood cells and VG values, and elevated MCV values and mean corpuscular volume (MCHC) for the Aberdeen Angus (Red Angus). For the WBC, the neonatal period was marked by increase in the number of lymphocytes and decrease in neutrophil ratio: lymphocyte (N, L) with respect to the inversion of 15 days. In the age group 90 days of life was evident increase in the number of leukocytes and lymphocytes in both races. The plasma fibrinogen concentrations showed no significant variations during the trial period. The plasma total protein (PTP), had higher values on the second day of life, with reductions up to 60 days and gradual increase in subsequent times. Discussion: The fluctuations related to the values of erythrocyte variables in the neonatal period are consistent with results reported by other authors in calves of other races. Changes in erythrocyte values observed from 90 days of age on race Aberdeen Angus (Red Angus) can be attributed to infection by blood parasites and consequent hemolysis. As for the leucocyte count, increasing the number of lymphocytes and inversion of N:L is the neonatal period in a physiological variation and confirms observations made by other authors in calves of other races. In the age group 90 days, leukocytosis by lymphocytosis was related to natural premonition against Babesia spp. and Anaplasma spp., which is documented in cattle i...

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Hemograma e bioquímica sérica auxiliar em bezerros mestiços neonatos e ocorrência de enfermidades

Cited by 8 publications

References 7 publications

Serum biochemistry profile in newborn Senepol and crossbred Holstein x Gir calves aged three to five days in Uberlândia, Minas Gerais, Brazil

Serum biochemistry profile in newborn Senepol and crossbred Holstein x Gir calves aged three to five days in Uberlândia, Minas Gerais, Brazil

Parâmetros hematológicos de bezerros leiteiros mestiços do nascimento aos 15 dias de idade

Hemogram, Fibrinogen Concentration and Plasma Total Protein from Calves of Criollo Lageano Breed Variety Hornless and Aberdeen Angus Breed (Red Angus) on the First Six Months of Life

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