Data/hora: 05/06/2024 10:10:49

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 23/03/1999
Data da última atualização: | 23/03/1999
Autoria: | ROBINSON, D. L.; HEMKES, O. J.; KEMP, A.
Afiliação: | Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Baton Rouge, LA, USA. Center for Agrobiological Research, Wageningen, Netherlands.
Título: | Relationships among forage aluminium levels, soil contamination on forages, and availability of elements to dairy cows.
Ano de publicação: | 1984
Fonte/Imprenta: | Netherlands Journal of Agricultural Science, v.32, p.73-80, 1984.
Idioma: | Inglês
Conteúdo: | Analyzing forage from ungrazed areas of intensively managed ryegrass pastures revealed that aluminium concentrations in the plants normally remained below 100 mg/kg of dry matter. Forage samples from grazed areas contained 100 to 400 mg Al/kg during most of the grazing season, but exceeded 1600 mg/kg during cold, wet weather as a result of increased soil contamination on the surface of the forage. Adding 1000 mg/kg Al as aluminium sulfate in the ration of cows of feeding 1 kg soil per cow per day was consistently associated with greater retention of Mg and Ca but had no measurable influence on P or K retention. Soil addition to the ration also increased Al retention values. Apparent availability of Ca All was consistently higher when the cows received either Al2(SO4)3 or soil in the ration. Apparent digestibility of organic matter was uniform throughhout the experiment. The studies suggest that the intake of soil or Al2(SO4)3 did not adversely affect Mg or Ca nutrition of dairy cows.
Palavras-Chave: | Aluminium; Contaminacao do solo; Disponibilidade de magnesio; Hypomagnesaemia; Ingestao de terra; Magnesium availability; Soil contamination; Soil ingestion.
Thesagro: | Alumínio; Nutrição; Ruminante.
Thesaurus Nal: | ruminant nutrition.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (37601-1) - ADD - SP - -- - SP4231 -  - 4231 - DIS