Effects of prepartum administration of a monensin controlled release capsule on rumen pH, feed intake, and milk production of transition dairy cows.

Effects of prepartum administration of a monensin controlled release capsule (CRC) on rumen pH, dry matter intake, and milk production during the transition period and early lactation were determined in 16 multiparous Holstein cows. Cows were divided into blocks of 2 depending on calving date. Cows were fed either a close-up dry cow or a lactating cow total mixed ration ad libitum.

Effects of monensin and stage of lactation on variation of blood metabolites within twenty-four hours in dairy cows.

Effects of prepartum administration of a monensin controlled release capsule (CRC) and stage of lactation on variation of blood metabolites within 24 h were determined in 16 dairy cows. Cows were fed a total mixed ration ad libitum twice daily at 0700 and 1300 h. At calving, cows were switched from a close-up dry cow diet to a lactating cow diet.

Comparison of techniques for measurement of rumen pH in lactating dairy cows.

Subacute rumen acidosis is thought to be a common condition in early lactating dairy cattle; however, diagnosis is difficult. There are currently only two techniques available for measuring rumen pH under field conditions: rumenocentesis and oral stomach tube. Sixteen rumen-fistulated cows were sampled in four sites of the rumen (cranial-ventral, caudal-ventral, central, and cranial-dorsal) with a rumen cannula.

The Malaria Research and Reference Reagent Resource (MR4) Center--creating African opportunities.

The Malaria Research and Reference Reagent Resource Center (MR4) is a program to support the international malaria research community. The primary goal is to improve access to well-characterized quality-controlled parasite, host and vector reagents for standardization of assays and other general research purposes. MR4 is open to all scientists worldwide, however many of its inaugural activities will have a focus in Africa, where the concept for the MR4 was born.

Neurospora from natural populations: a global study.

This is a summary report on samples of conidiating Neurospora species collected over three decades, in many regions around the world, primarily from burned vegetation. The genus is ubiquitous in humid tropical and subtropical regions, but populations differ from region to region with regard to which species are present. The entire collection, >4600 cultures from 735 sites, is listed by geographical origin and species.