Sequential Changes in Some Blood Components in the Normal Neonatal Calf

McMurray, C.H.; Logan, E.F.; McParland, PJ; McRory, F.J.; O’Neill, Dan G.

doi:10.1016/s0007-1935(17)33343-2

Cited by 20 publications

(8 citation statements)

References 15 publications

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“…In the study by Matte et al ( 9 ) , all calves were sampled 6 h after colostrum was fed, indicating that advancing age may affect absorption of colostrum and estimates of PV. Changes in PV are dynamic and result from water redistribution between intracellular and extracellular fluid compartments or from the influx of water from the gut (13). Age at first feeding, age at second feeding, amount of colostrum consumed, and sex of the calf did not significantly affect estimates of PV in our study.…”

Section: Resultscontrasting

confidence: 48%

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Estimation of Plasma Volume in Holstein and Jersey Calves

Quigley

Drewry

Martin

1998

Journal of Dairy Science

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The concentration of immunoglobulin ( I g ) G in the blood of neonatal calves shortly after birth is a widely used criterion to determine the degree of acquisition of passive immunity. Another method used to determine the biological mechanisms of IgG absorption is calculation of the apparent efficiency of IgG absorption. Estimation of the efficiency of IgG absorption requires the estimation of plasma volume in neonatal calves. Previous estimates of plasma volume in a few calves of varying breeds have been made; the estimates ranged from 7 to 14.5% of body weight (BW). Holstein ( n = 97 from four farms) and Jersey ( n = 49 from one farm) calves were fed fresh maternal colostrum or colostrum that had been previously frozen. Calves were fed 2 L of colostrum at 4.1 h (SE = 0.2; range = 0.3 to 11.0 h ) and 12 h later. Plasma volume was measured by determining the concentration of Evans' blue dye in a jugular blood sample collected 10 min after injection of approximately 1.5 ml of 1.5% Evans' blue dye. Factors that affected plasma volume (milliliters) were BW, breed, and age at sampling; r 2 of the regression was 0.60. Factors that affected plasma volume (percentage of BW) were BW, breed, and age at sampling; r 2 of the regression was 0.08. Mean plasma volume for all calves was 3162 ml (SE = 79) and was 9.86% of birth BW (SE = 0.15%). Mean plasma volume was 2250 ml (9.71% of BW) and 3623 ml (9.94% of BW) for Jersey and Holstein calves, respectively. Body weight was the best predictor of plasma volume. (

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Section: Resultscontrasting

confidence: 48%

“…Others (13,14) also reported that PV increased as age increased to approximately 24 h because of the absorption of water and protein from the gut. Conversely, Matte et al ( 9 ) reported a decline in PV in calves fed colostrum at later ages.…”

Section: Resultsmentioning

confidence: 96%

Estimation of Plasma Volume in Holstein and Jersey Calves

Quigley

Drewry

Martin

1998

Journal of Dairy Science

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“…When processing information from our and ample foreign literature we have found that the determination of biochemical and hematological values in calves was usually carried out only once (Vagher et al 1973;Kitchenham et al 1978;Slanina, Beseda 1979;Lumsden et al 1980) or that the dynamics was studied only in a short time interval (McMurray et al 1978).…”

mentioning

confidence: 99%

Biochemical and Hematological Reference Values in Calves and Their Significance for Health Control

Bouda¹,

Jagos²

1984

Acta Vet. Brno

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Bouda ]., P. Jagos: Biochemical and Hematological Re/erence Values in Calves and Their Significance/or Health Control. Acta vet. Brno, 53,1984: 137-142. Clinical and biochemical examination of 114 calves from birth to the age of 6 months was carried out. Blood samples were taken from v. jugularis prior to the first colostrum intake and after 1,4,7,21,42,60,90 and 180 days. From the total number of 114 followed calves reference biochemical and hematological values were obtained from the group of 53 healthy calves.In dependence on calf age reference values of total protein including fractions and immunoglobulins in blood serum and levels of vitamin A, E and C, carotenes, glucose, urea, enzyme activities (AST, GMT), minerals (Na, K, Mg, inorg. P, Zn, Cu, Fe) in blood plasma were determined. In calf blood acid-base values (pH, pCO" BE, SB), hematocrit, hemoglobin, methemoglobin, erythrocyte and leukocyte counts were determined. Hypogammaglobulinaemia, hypovitaminoses A and E were found in 50-75 % of calves. Among the most significant biochemical data from the diagnostic point of view, the determination of Ig and vitamin levels, acid-base balance of blood, plasma levels of glucose, urea, some minerals and AST activity are included.The selection of clinico-biochemical parameters of calves has to be purposeful. During the examination and diagnosis of metabolic disorders the development of immunological proceses, the lability of homeostasis, the functional and organ immaturity and the dynamics in relation to calf age have to be taken into consideration.

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“…Methodology for the determination of urea, total protein, albumin, copper and phosphate was as described by McMurray, Logan, McParland, McRory and O'Neill (1978). Samples of whole blood were analysed for glucose.…”

mentioning

confidence: 99%

The optimum level of protein in the supplement for dairy cows with access to grass silage

Gordon¹,

McMurray

1979

Anim. Sci.

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Grass silage with a dry-matter content of 19·4% and containing 16·7% crude protein was offered ad libitum to 42 first lactation British Friesian cows during the first 75 days post-calving. In addition the animals received supplementary concentrates containing either 10·3, 13·6, 17·3, 21·1, 25·2 or 30·3% crude protein on a fresh weight basis, with extracted soya bean meal being used as the main protein source. All concentrates were offered at an equal level of 8·0 kg per day. The relationship between milk yield and protein content of the supplement was curvilinear and was described by the following equation:Y= 8·95+ 1·0×–0·0205×where Y = milk yield per day in kg, and × = percentage protein in the supplement. This equation indicated that maximum milk yield was obtained with a concentrate containing 24·4 % protein on a fresh weight basis. The protein content of the milk was also curvilinearly affected by the level of protein in the supplement, and it was calculated that maximum milk protein (nitrogen × 6·38) would be obtained with a supplement containing 23·9% protein. Plasma blood urea levels increased linearly with increasing protein intake. The effects on live-weight change and blood components were also recorded.

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Sequential Changes in Some Blood Components in the Normal Neonatal Calf

Cited by 20 publications

References 15 publications

Estimation of Plasma Volume in Holstein and Jersey Calves

Estimation of Plasma Volume in Holstein and Jersey Calves

Biochemical and Hematological Reference Values in Calves and Their Significance for Health Control

The optimum level of protein in the supplement for dairy cows with access to grass silage

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