Hematology and serum biochemistry of Holstein dairy calves: Age related changes and comparison with blood composition in adults

Mohri, Mehrdad; Sharifi, Kamran; Eidi, Samaneh

doi:10.1016/j.rvsc.2006.10.017

Cited by 281 publications

(352 citation statements)

References 7 publications

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“…Changes in hematological traits between the samplings at 10 and 20 weeks may be correlated to age-related changes that have been demonstrated previously (Mohri et al, 2007). For example, similar to this study, a significantly higher platelet count was found in young calves that decreased to adult control levels over time (Brun-Hansen et al, 2006).…”

Section: Discussionsupporting

confidence: 89%

Effects of the prebiotics inulin and lactulose on intestinal immunology and hematology of preruminant calves

Masanetz

Preißinger

Meyer

et al. 2011

Animal

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Prebiotics are suggested as an alternative to antibiotics in animal rearing. Fermentable substances such as inulin or lactulose have been proposed to stimulate the immune system and health by modulation of the intestinal flora and its fermentation products. In this study, effects of inulin and lactulose on the intestinal health and hematology of calves have been investigated. Both prebiotics significantly decreased thrombocyte counts in peripheral blood. Only inulin was able to increase hemoglobin concentration and hematocrit. Total leukocyte count was decreased by lactulose while both prebiotics tended to lower monocyte proportions. mRNA expression of inflammation-related markers in the intestine was also affected by both prebiotics hinting at a decreased inflammatory status. This may be due to a possible decrease in intestinal pathogen load that remains to be verified. Only mRNA amounts of interleukin 8 were increased by lactulose in mesenteric lymph nodes. In the ileum, expression of a proliferation marker was increased by inulin while an apoptosis-related gene was increased by both prebiotics. The results of this study show a clear effect of prebiotics on certain parameters associated with animal health and performance that remain to be studied in detail in future investigations.

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Section: Discussionsupporting

confidence: 89%

Effects of the prebiotics inulin and lactulose on intestinal immunology and hematology of preruminant calves

Masanetz

Preißinger

Meyer

et al. 2011

Animal

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“…A realização de exames e a interpretação de dados laboratoriais dos ruminantes podem ser uma extensão importante do exame físico, pois auxiliam na determinação da etiologia, quando os achados clínicos são vagos, e fornecem informações que norteiam a abordagem terapêutica e o prognóstico (Jones e Allison, 2007;Mohri et al, 2007). No entanto, vários fatores podem influenciar os constituintes sanguíneos, e intervalos de referência específicos são necessários para raça, espécie e faixa etária (Mohri et al, 2007).…”

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“…No entanto, vários fatores podem influenciar os constituintes sanguíneos, e intervalos de referência específicos são necessários para raça, espécie e faixa etária (Mohri et al, 2007).…”

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“…Em bovinos, as alterações que ocorrem nos valores hematológicos desde o nascimento até a idade adulta já são conhecidas (Costa et al, 2000;Mohri et al, 2007), no entanto poucos trabalhos encontrados na literatura (Jain, 1993;Fagliari et al, 1998) fornecem dados suficientes para avaliar os animais com diferentes aptidões. A avaliação do proteinograma também é de grande importância do ponto de vista diagnóstico, e albumina e globulinas são as frações mais importantes.…”

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“…O decréscimo no teor de hemoglobina a partir do nascimento verificado no grupo 1 já havia sido relatado por Fagliari et al (1998) e Mohri et al (2007). Segundo Getty et al (1968) Fagliari et al (1998).…”

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Hemograma e proteínas do soro sanguíneo de bezerros Canchim-Nelore e da raça Holandesa nos primeiros 30 dias de vida

Rocha

Franciosi

Nociti

et al. 2010

Arq. Bras. Med. Vet. Zootec.

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Effects of oral or parenteral iron supplementation on haematological parameters, blood iron status and growth in newborn calves fed milk replacer

et al. 2023

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BackgroundThis study aimed to assess the influence of early life iron supplementation on the haematological parameters of calves fed milk replacer on a high plane of nutrition.MethodsThirty calves were allocated to receive either a sham treatment (CON), injection of 1000 mg Fe3+ (INJ) or oral administration of 1050 mg Fe3+ (ORAL), all administered less than 1 hour after birth. Blood was obtained before treatment, on days 1, 3, 5 and 7 of life and once weekly until week 9. Samples were analysed for haemoglobin (Hb), packed cell volume (PCV) and estimated transferrin saturation (%TSAT).ResultsThe Hb and PCV of calves in the INJ and ORAL groups were above the values of those in the CON group throughout the study. Hb and PCV of the CON group remained within the reference range for calves. The %TSAT exceeded reported ranges in the ORAL group in the first week. Values for the CON group were below the INJ and ORAL groups throughout the entire study. Average daily gain did not differ between treatments.LimitationsThe sample size was insufficient to assess the influence of iron supplementation on disease development. Furthermore, the study was set in a controlled environment and not performed under field conditions.ConclusionsOral and subcutaneous iron administration had similar effects on haematological development but resulted in numerically different transferrin saturation. Control animals showed lower Hb and PCV but did not develop overt anaemia.

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Hematology and serum biochemistry of Holstein dairy calves: Age related changes and comparison with blood composition in adults

Cited by 281 publications

References 7 publications

Effects of the prebiotics inulin and lactulose on intestinal immunology and hematology of preruminant calves

Effects of the prebiotics inulin and lactulose on intestinal immunology and hematology of preruminant calves

Hemograma e proteínas do soro sanguíneo de bezerros Canchim-Nelore e da raça Holandesa nos primeiros 30 dias de vida

Effects of oral or parenteral iron supplementation on haematological parameters, blood iron status and growth in newborn calves fed milk replacer

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