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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Plasma globin, β-hydroxybutyrate (BHB), albumin, urea and inorganic phosphate levels were measured in low-yielding dairy cows belonging to smallholders in tropical and subtropical environments. The study involved 13 projects with 80 cows in each, carried out in 1 southern European, 6 Latin American ...

Whitaker, D. A.; Goodger, W. J.; García, M.; Perera, B. M. A. O.; Wittwer, F.
Preventive Veterinary Medicine, 1999, 38, 2/3, pp 119-131

The association between herd blood urea concentration (mean of 7 lactating cows) and bulk milk urea concentration (tank containing milk from the previous 24 h) was determined in 21 dairy herds in the Valdivia region of Chile. In addition, reference values, seasonal and herd variance, and the...

Wittwer, F. G.; Gallardo, P.; Reyes, J.; Opitz, H.
Preventive Veterinary Medicine, 1999, 38, 2/3, pp 159-166

12 papers are presented: Development of a database management system; Effect of blood metabolites, body condition and pasture management on milk yield and post-partum intervals in dual-purpose cattle farms in Mexico; Metabolic profiles in dairy cattle in tropical and subtropical countries; Blood...

Preventive Veterinary Medicine, 1999, 38, 2/3, pp v + 149 pp.

During the winter of 1994, a survey of productive and reproductive parameters was undertaken in the south-central part of Chile on 71 cows from 4 small farms with low milk production (<3000 litres/year). Cows were allowed to graze a perennial ryegrass and white clover pasture supplemented with...

Orellana, P.; Recabarren, S.; Lobos, A.; Islas, A.; Briones, M.; Rubilar, L.
Preventive Veterinary Medicine, 1999, 38, 2/3, pp 207-215

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