forty neonate calves were used in this study. the animals were divided into two treatment (n = 20) andcontrol (n = 20) groups. in the treatment group, oral iron as ferrous sulphate was supplemented to each calf atthe dose of 150 mg/day for 28 days, from the birthday. blood sampling was taken from jugular veinimmediately after birth and on days 7, 14, 21 and 28 after birth. significant differenc...

Trials were conducted on a farm in Mpumalanga Province in South Africa to test the possibility of grading the colour of the ocular mucous membranes of sheep as an indication of the extent to which the animals are affected by Haemonchus contortus infection. The range of observed colour shades were classified into five categories, from red, through red-pink, pink and pink-white to white. Over a p...

A simple micromethod has been devised for estimating the fat and energy content of human milk based on the centrifugation of milk in a haematocrit centrifuge. The percentage of cream, or "creamatocrit," is read from the haematocrit capillary tube and is linearly related to the fat and energy content. The technique, which is rapid and cheap, may be used in clinical practice, in research, and in ...

To address how the capacity for oxygen transport influences tolerance of acute warming in fishes, we investigated whether a reduction in haematocrit, by means of intra-peritoneal injection of the haemolytic agent phenylhydrazine, lowered the upper critical temperature of sea bass. A reduction in haematocrit from 42±2% to 20±3% (mean ± s.e.m.) caused a significant but minor reduction in upper cr...

4. Blood samples were assessed for haemoglobin and haematocrit values. 5 . Calorie, protein and folic acid intakes were low for all age groups; iron and ascorbic acid intakes were adequate. 6. There was no incidence of severe anaemia. Only 10 yo of all the eighty-eight children had a haemoglobin concentration below acceptable levels and only about 8 % of all the eighty-eight children had haemat...

Haemorrheological variables were studied in 43 patients after acute myocardial infarction. Red cell deformability, by a filtration method, was significantly lower within 12 hours of infarction than subsequently. This drop was greater in the presence of haemodynamic complications. Blood viscosity, particularly when adjusted to a standard haematocrit, rose in the week after infarction, as did pla...

more accurate than the red cell count (7-10% minimum error). In this respect, we may confirm the reproducibility of the haematocrit determination since duplicates, set up in 3 mm. Wintrobe tubes and spun simultaneously in the same centrifuge, agree within less than 0.5 divisions, read to the nearest tenth of a division by microscopic magnification against an eyepiece scale. However, while techn...

Editor—I write regarding two papers published some time ago, as an issue for clarification or correction. Both papers come from the same group in Paris and both use the same method for estimation of blood loss, detailed in the text and appendix of the two papers, respectively. 2 This method was based on and attributed to the method used by Kearney and colleagues. I believe there is an error in ...