Zobrazeno 1 - 10 of 31 pro vyhledávání: '"J. L. van Os"'
1
A Multitest System for Detection of Antibiotics in Milk
Autor: R. Beukers, J. L. van Os
Publikováno v: Journal of food protection. 43(7)
A description is given of the Delvotest® P multi, a test system for detection of antibiotics in milk to be used when large numbers of samples have to be investigated. By using a special delivery pipet, one person can handle 400 samples per hour. Sen
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::495cd507b7ae9425e0c55fe9fc36cc96
https://pubmed.ncbi.nlm.nih.gov/30822953
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2
Antibiotic Residues in Milk: Dye Marking Versus Direct Control
Autor: J. L. van Os
Publikováno v: Journal of food protection. 41(7)
Advantages and disadvantages of control for antibiotic residues in milk by compulsory dye marking of anti-mastitis preparations or by direct tests utilizing microbiological methods are reviewed. It appears feasible to construct a very strict direct c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d806df32c79931005ca0ab7c79f5fb68
https://pubmed.ncbi.nlm.nih.gov/30795103
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5
[Hormonal disruptors and farm animals]
Autor: J L, van Os
Publikováno v: Tijdschrift voor diergeneeskunde. 123(1)
A number of man made environmental contaminants displays a weak hormonal, usually oestrogenic, activity. Currently such contaminants are termed hormone disruptors, a terminology that also includes natural compounds with hormonal activity, such as phy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e347fd052e499686e9b2cf0c83b38fac
https://pubmed.ncbi.nlm.nih.gov/9537066
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6
Long-term trends in sperm counts of dairy bulls
Autor: J L, van Os, M J, de Vries, N H, den Daas, L M, Kaal Lansbergen
Publikováno v: Journal of andrology. 18(6)
A possible decline in sperm counts in men and its potential relation to exposure to environmental contaminants are subjects of a broad discussion. Whereas data for human research in this area are limited, records over prolonged periods on sperm count
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::ee49d50a176d1d19dae8be589f54b208
https://pubmed.ncbi.nlm.nih.gov/9432146
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7
Oestrus control and the incidence of mammary nodules in bitches, a clinical study with two progestogens
Autor: J. L. van Os, J. S. C. Verschoor, E. P. Oldenkamp, P. H. van Laar
Publikováno v: Veterinary Quarterly. 3:46-56
The incidence, size and location of mammary nodules were established in 10 practices in The Netherlands by the clinical examination of bitches in which oestrus was controlled with proligestone (P), 331 animals, or medroxyprogesterone acetate (MAP), 3
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3076602305a7658c1b2a1408d8df5174
https://doi.org/10.1080/01652176.1981.9693795
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8
[Veterinarians and computers (author's transl)]
Autor: J L, van Os
Publikováno v: Tijdschrift voor diergeneeskunde. 103(17)
Because of the fact that the use of computers depends both on the user and on the apparatus, some characteristics of veterinarians and computers are discussed. Although veterinarians probably are not pre-eminently computer-minded in view of their cho
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::40f2062636a2a2aaeb779114da0a14e4
https://pubmed.ncbi.nlm.nih.gov/358489
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