Vitamin B<sub>12</sub>and copper in blood serum and liver of hoggets in relation to cobalt and copper status of west coast South Island soils and pastures

Morton, J. D.

doi:10.1080/03015521.1986.10423072

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…There were no significant liveweight gain responses to Se, Co or Cu measured. Later work on pakihi and terrace soils showed that initial application of cobalt and copper sulphate at sowing maintained blood serum and liver vitamin B 12 and Cu levels in the adequate range for up to 8 years (Morton 1986).…”

Section: Sheepmentioning

confidence: 99%

A review of pastoral research carried out on the West Coast of the South Island: 1960-2000

Morton¹,

Williams²

2002

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The pastoral research carried out on the West Coast of the South Island between 1960 and 2000 could be divided into three categories; nutrient requirements for pasture, pasture establishment and growth and animal performance. Because of the varied fertility of the soil types present, research on nutrient requirement was the largest category. In the 1960's, requirements for pasture establishment and early growth on pakihi (podzol) soils of lime, phosphorus (P), elemental sulphur (S), potassium (K), copper (Cu) and molybdenum were identified. This work was extended to determine P, S and K maintenance requirements of pakihi, recent alluvial and brown terrace soils in the 1970's and 1980's. Elemental S was shown to be the most cost effective S fertiliser under annual rainfall greater than 2000 mm and the tetraphenyl boron (TBK) test was calibrated to measure the supply of nonexchangeable K on recent soils. A series of trials were carried out to determine pasture yield responses to fertiliser nitrogen (N) on recent soils in the early 1970's. Later work in the mid 1980's showed that measurement of accumulated soil and air temperature from early spring did not improve the accuracy in prediction of pasture yield responses to N. On the poorly drained, acid and infertile pakihi soils, the interactions between seed coating and lime were measured and the yield advantages of Maku Lotus and Yorkshire fog as alternative pasture species to ryegrass and white clover demonstrated. Rate of pasture growth trials determined the seasonal pattern of pasture production on a range of sites from 1970 to 1995. On recent soils that could not be moled, gravel moling and hump and hollowing substantially increased pasture production during a spring with high rainfall (2000 mm). In the early 1980's, dairy grazing trials showed that lengthening the grazing rotation during autumn increased winter and spring pasture production. For sheep, preferential grazing of thin ewes from weaning to mating increased overall ovulation rate. The density of sheep dung patches was shown to increase with winter stocking intensity on a pakihi soil. Surveys of dairy farm practice established an association between effectiveness of magnesium (Mg) supplementation of dairy cows and reducing the incidence of metabolic disorders. Many dose response trials established the requirement by dairy calves for selenium (Se), cobalt (Co) and Cu on different West Coast soils. Close contact between West Coast scientists, advisors and farmers ensured that local research information was efficiently communicated with a resulting high level of farmer adoption. Keywords: animal management, fertility, lime, nitrogen, pasture establishment, phosphorus, potassium, soils, South Island, sulphur, trace elements, West Coast

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Section: Sheepmentioning

confidence: 99%

A review of pastoral research carried out on the West Coast of the South Island: 1960-2000

Morton¹,

Williams²

2002

ProNZG

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Soil contribution to the cobalamin (vitamin B12) supply of terrestrial organisms

Jörgensen,

Joergensen

2024

Biol Fertil Soils

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Cobalamin (Vitamin B12) is a cofactor for many enzymes, including those in bacteria, archaea, algae, and mammals. In humans, cobalamin deficiency can lead to pernicious anaemia as well as gastrointestinal and neurological disorders. In contrast to marine ecosystems, there is a great paucity of information on the role of soils and terrestrial plants in the supply of cobalt and cobalamin to microorganisms and animals. The content of cobalt cations in most soils is usually sufficient to maintain growth, and the density of cobalamin-producing soil prokaryotes is high in comparison to water bodies. The cobalt content of most soils is usually sufficient in comparison with water, and the density of cobalamin-producing soil prokaryotes is high. Therefore, terrestrial plants are an important cobalt source for cobalamin-producing rumen and gut prokaryotes. The major source of cobalamin for most other animals is the meat of ruminants as well as other animal-derived products, bacteria in insects, and coprophagy, e.g., by rodents. In addition, faecal deposits, and fertilizers as well as soil bacteria add to the cobalamin supply. However, those archaea and bacteria that do not produce cobalamin obtain this coenzyme or its analogues from the environment. Therefore, presence or absence of cobalamin-producing species in soil affects the whole soil microbiome. However, our knowledge concerning microbial producers and consumers of cobalamin in soils is still limited, despite some recent advances. The main reasons are a low cobalamin content in soils and challenging methods of determination. In this regard, advanced analytical knowledge and technical equipment are required, which are usually unavailable in soil laboratories. This review provides relevant methodological information on sample homogenization, extraction, concentration, and purification as well as analysis of cobalamin.

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Vitamin B₁₂and copper in blood serum and liver of hoggets in relation to cobalt and copper status of west coast South Island soils and pastures

Cited by 2 publications

References 7 publications

A review of pastoral research carried out on the West Coast of the South Island: 1960-2000

A review of pastoral research carried out on the West Coast of the South Island: 1960-2000

Soil contribution to the cobalamin (vitamin B12) supply of terrestrial organisms

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Vitamin B12and copper in blood serum and liver of hoggets in relation to cobalt and copper status of west coast South Island soils and pastures

Cited by 2 publications

References 7 publications

A review of pastoral research carried out on the West Coast of the South Island: 1960-2000

A review of pastoral research carried out on the West Coast of the South Island: 1960-2000

Soil contribution to the cobalamin (vitamin B12) supply of terrestrial organisms

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Vitamin B₁₂and copper in blood serum and liver of hoggets in relation to cobalt and copper status of west coast South Island soils and pastures