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Trace element supplementation of livestock in new zealand: meeting the challenges of free-range grazing systems.

Grace ND, Knowles SO - Vet Med Int (2012)

Bottom Line: On farms where grazing animals are infrequently yarded, there are limited opportunities to administer trace element supplements via feeds and concentrates.In New Zealand, where the majority of sheep, cattle, and deer graze pasture year round, inadequate intake of cobalt, copper, iodine and selenium is prevalent.Supplementation methods suited to grazing livestock include long-acting injections, slow-release intraruminal boluses, trace element-amended fertilisers, and reticulated water supplies on dairy farms.

View Article: PubMed Central - PubMed

Affiliation: 26 Williams Road, RD 4, Palmerston North 4474, New Zealand.

ABSTRACT
Managing the mineral nutrition of free-range grazing livestock can be challenging. On farms where grazing animals are infrequently yarded, there are limited opportunities to administer trace element supplements via feeds and concentrates. In New Zealand, where the majority of sheep, cattle, and deer graze pasture year round, inadequate intake of cobalt, copper, iodine and selenium is prevalent. Scientists and farmers have developed efficient strategies to monitor and treat these dietary deficiencies. Supplementation methods suited to grazing livestock include long-acting injections, slow-release intraruminal boluses, trace element-amended fertilisers, and reticulated water supplies on dairy farms.

No MeSH data available.


Related in: MedlinePlus

The effect of none (◯) or 350 g cobalt sulphate per hectare (70 g Co/ha) (●), applied as a solid, on the concentrations of Co in pastures. Adequate intake of Co requires herbage Co >0.06 mg/kg DM for cattle and >0.10 mg/kg DM for lambs [48].
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Related In: Results  -  Collection


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fig8: The effect of none (◯) or 350 g cobalt sulphate per hectare (70 g Co/ha) (●), applied as a solid, on the concentrations of Co in pastures. Adequate intake of Co requires herbage Co >0.06 mg/kg DM for cattle and >0.10 mg/kg DM for lambs [48].

Mentions: Recommended application rate is 70 g Co/ha, usually as cobalt sulphate applied annually in the spring to provide high Co pastures for weaned lambs in the summer. Concentrations of Co in herbage can be increased from 0.06 to 0.50 mg Co/kg DM (Figure 8). Grazing this pasture for 3 months will prevent Co deficiency in lambs for a further 4 months, maintaining serum vitamin B12 concentrations >350 pmol/L [47, 48].


Trace element supplementation of livestock in new zealand: meeting the challenges of free-range grazing systems.

Grace ND, Knowles SO - Vet Med Int (2012)

The effect of none (◯) or 350 g cobalt sulphate per hectare (70 g Co/ha) (●), applied as a solid, on the concentrations of Co in pastures. Adequate intake of Co requires herbage Co >0.06 mg/kg DM for cattle and >0.10 mg/kg DM for lambs [48].
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3539419&req=5

fig8: The effect of none (◯) or 350 g cobalt sulphate per hectare (70 g Co/ha) (●), applied as a solid, on the concentrations of Co in pastures. Adequate intake of Co requires herbage Co >0.06 mg/kg DM for cattle and >0.10 mg/kg DM for lambs [48].
Mentions: Recommended application rate is 70 g Co/ha, usually as cobalt sulphate applied annually in the spring to provide high Co pastures for weaned lambs in the summer. Concentrations of Co in herbage can be increased from 0.06 to 0.50 mg Co/kg DM (Figure 8). Grazing this pasture for 3 months will prevent Co deficiency in lambs for a further 4 months, maintaining serum vitamin B12 concentrations >350 pmol/L [47, 48].

Bottom Line: On farms where grazing animals are infrequently yarded, there are limited opportunities to administer trace element supplements via feeds and concentrates.In New Zealand, where the majority of sheep, cattle, and deer graze pasture year round, inadequate intake of cobalt, copper, iodine and selenium is prevalent.Supplementation methods suited to grazing livestock include long-acting injections, slow-release intraruminal boluses, trace element-amended fertilisers, and reticulated water supplies on dairy farms.

View Article: PubMed Central - PubMed

Affiliation: 26 Williams Road, RD 4, Palmerston North 4474, New Zealand.

ABSTRACT
Managing the mineral nutrition of free-range grazing livestock can be challenging. On farms where grazing animals are infrequently yarded, there are limited opportunities to administer trace element supplements via feeds and concentrates. In New Zealand, where the majority of sheep, cattle, and deer graze pasture year round, inadequate intake of cobalt, copper, iodine and selenium is prevalent. Scientists and farmers have developed efficient strategies to monitor and treat these dietary deficiencies. Supplementation methods suited to grazing livestock include long-acting injections, slow-release intraruminal boluses, trace element-amended fertilisers, and reticulated water supplies on dairy farms.

No MeSH data available.


Related in: MedlinePlus