The effect of copper glycine injections on the live-weight gains of suckling beef calves

Morgan, D. E.; Clegg, A.; Brooksbank, N. H.; McCrea, CT

doi:10.1017/s0003356100040691

Cited by 10 publications

(1 citation statement)

References 3 publications

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“…This widespread subclinical deficiency may well be of greater economic significance than the more local clinical problem. Though little evidence has previously been reported linking sub-clinical hypocuprosis with loss of production, suckling beef calves with low blood copper in the absence of clinical symptoms have responded to injected copper with substantial improvement in live-weight gain (Morgan et al 1962).…”

Section: Effect Of Feeding Minerals On Blood Copper Contentmentioning

confidence: 99%

An investigation into copper deficiency in cattle in the Southern Pennines. I. Identification of suspect areas using geochemical reconnaissance followed by blood copper surveys

Thornton

Kershaw²,

Davies³

1972

J. Agric. Sci.

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SUMMARYSevere clinical copper deficiency has been recognized for some years on a number of farms within an area of 10 square miles in North Staffordshire. Response to injected copper is good and supplementation is now regular practice. One of the causes would appear to be a dietary excess of molybdenum, confirmed in soil and pasture.Geochemical reconnaissance in 1965 delineated areas totalling 60 square miles, including the above area, in which molybdenum occurs in above normal concentrations in stream sediments, rocks, soils and pasture. The source of the molybdenum was found to be black marine shales of Carboniferous age. Within the areas the presence of molybdeniferous soils and pasture is related to local variation in geology and parent material and is in particular affected by drift cover.Blood copper analysis on 350 cattle from 26 herds, excluding those herds in which deficiency was previously recognized, indicated hypocupraemia in 64% within the geochemically denned molybdeniferous area compared to 35 % in nearby control areas. Excluding animals fed minerals, the results were 77 and 37%, respectively. On the whole, deficient animals showed no marked clinical symptoms of hypocuprosis, though unthriftiness and poor fertility are common in the area.

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Section: Effect Of Feeding Minerals On Blood Copper Contentmentioning

confidence: 99%

An investigation into copper deficiency in cattle in the Southern Pennines. I. Identification of suspect areas using geochemical reconnaissance followed by blood copper surveys

Thornton

Kershaw²,

Davies³

1972

J. Agric. Sci.

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Experimental copper deficiency in the calf

Suttle

Angus

1976

Journal of Comparative Pathology

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The effect of copper treatment on the performance of hypocupraemic calves

1979

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ABSTRACT1. Seven experiments involving 191 calves and 40 cows were under- taken over a 2-year period into the effect of copper treatment of hypocupraemic calves on their subsequent performance.2. Significant increases in mean live-weight gain of copper-treated calves ranging from 19·9 to 34·3 kg/head relative to untreated control groups were obtained in three cases.3. The frequency of copper injection required to maintain plasma copper levels above 0·60 mg/1 varied from 6 to 12 weeks.4. The live-weight gain and plasma copper concentration responses are discussed in relation to the pasture herbage concentrations of copper, molybdenum and sulphate.

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The effect of copper glycine injections on the live-weight gains of suckling beef calves

Cited by 10 publications

References 3 publications

An investigation into copper deficiency in cattle in the Southern Pennines. I. Identification of suspect areas using geochemical reconnaissance followed by blood copper surveys

An investigation into copper deficiency in cattle in the Southern Pennines. I. Identification of suspect areas using geochemical reconnaissance followed by blood copper surveys

Experimental copper deficiency in the calf

The effect of copper treatment on the performance of hypocupraemic calves

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