RELATIVE IMPORTANCE OF EWE MILK AND PASTURE IN TRANSFERRING RADIOCESIUM TO LAMBS DURING THE SUMMER GRAZING PERIOD

被引：2

作者：

HANSEN, HS

HOVE, K

BARVIK, K

VABENO, A

机构：

[1] Department of Animal Science, Agricultural, University of Norway, 1432 Ås

[2] Tjøtta Research Station

来源：

SMALL RUMINANT RESEARCH | 1994年 / 14卷 / 03期

关键词：

LAMB; MILK; PASTURE; RADIOCESIUM; TRANSFER COEFFICIENT;

D O I：

10.1016/0921-4488(94)90041-8

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The relative importance of milk and pasture in transferring radiocaesium (Cs-134 and Cs-137) to lamb's meat was studied in 13 ewes with twin lambs grazing on pastures contaminated by deposition from the Chernobyl accident. Six of the ewes were fed a caesium binder to obtain low milk radiocaesium levels and seven were used as control. Radiocaesium activity concentration was measured in meat, blood and milk every 14 d. Milk was the major source of radiocaesium for lambs younger than 6-7 wk, but from 11 wk onwards milk had only a slight and non-significant effect on radiocaesium concentration in lamb's meat. Thus, radiocaesium intake from pasture was the major factor determining radiocaesium concentration in lambs at time of slaughter. Mean aggregated transfer coefficients to meat were 23 x 10(-3) m2 kg-1 and 31 x 10(-3) m2 kg-1 for ewes and lambs, respectively, and mean aggregated transfer coefficient to ewes milk was 11 x 10(-3) m2 l-1.

引用

页码：199 / 204

页数：6

共 17 条

[1]

Andersson, Hansson, Distribution of <sup>137</sup>Cs to different muscles and internal organs of lambs fed contaminated hay, Swedish J. Agric. Res., 19, pp. 93-98, (1989)

[2]

Assimakopoulos, Ioannides, Pakou, Mantzios, Measurement of the transfer coefficient for radiocaesium transport from a sheep's diet to its milk, Health Phys., 53, pp. 685-689, (1987)

[3]

Beresford, Lamb, Mayes, Howard, Colgrove, The effect of treating pasture with bentonite on the transfer of <sup>137</sup>Cs from grazed herbage to sheep, J. Environ. Radioactivity, 9, pp. 251-264, (1989)

[4]

Doney, Peart, The effect of sustained lactation on intake of solid food and growth rate of lambs, The Journal of Agricultural Science, 87, pp. 511-518, (1976)

[5]

Gibb, Treacher, Shanmugalingam, Herbage intake and performance of grazing ewes and of their lambs when weaned at 6 8 10 or 14 weeks of age, Animal Production, 33, pp. 223-232, (1981)

[6]

Hove, Ekern, Combating radiocaesium contamination in farm animals, Health Problems in Connection with Radiation from Radioactive Matter in Fertilizers, Soils and Rocks, pp. 139-153, (1988)

[7]

Hove, Staaland, Pedersen, Hexacyanoferrates and bentonite as binders of radiocaesium for reindeer, Rangifer, 11, pp. 43-48, (1992)

[8]

Hove, Hansen, Reduction of radiocaesium transfer to animal products using sustained release boli with ammoniumiron(III) — hexacyanoferrate(II), Acta. Vet. Scand., 34, pp. 287-297, (1993)

[9]

Howard, A comparison of radiocaesium transfer coefficients for sheep milk and muscle derived from both field and laboratory studies, Sci. Total Environ., 85, pp. 189-198, (1989)

[10]

Howard, Beresford, Burrow, Shaw, Curtis, A comparison of caesium 137 and 134 activity in sheep remaining on upland areas contaminated by Chernobyl fallout with those removed to less active lowland pasture, J. Soc. Radiol. Prot., 7, pp. 71-73, (1987)

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