Evolutionary biology provides reasons for why the intensive selection for milk production
reduces reproductive success rates. There is considerable exploitable genetic variation in …

The transition from pregnancy to lactation (ie the transition period) is a time of significant
metabolic challenge, with a several-fold increase in a cow's requirement for energy, protein …

In pasture-based dairy systems, supplementary feeds are used to increase dry matter intake
and milk production. Historically, supplementation involved the provision of the same …

The objectives of this study were to evaluate the effects of daily top-dressing (individually
feeding on the top of the total mixed ration) with rumen-protected methionine (RPM) from …

Beef cows and ewes grazing native pastures are exposed to cycles of undernutrition that
reflect the seasonal variations of biomass production. In grazing dairy cows, the …

Like all animals, bees need to consume essential amino acids to maintain their body's
protein synthesis. Perception and discrimination of amino acids are, however, still poorly …

The objective of this study was to evaluate the effects of supplying ruminally protected Lys
(RPL) and ruminally protected Met (RPM) to transition cows' diets on the efficiency of …

ABSTRACT A 60% pregnancy success for inseminations is targeted to optimize production
efficiency for dairy cows within a seasonal, pasture-grazed system. Routine measures of …

Choline is a precursor of acetylcholine, phosphatidylcholine, and the methyl-donor betaine.
Reports indicate that supplementation with rumen-protected choline improves postpartum …

At the individual cow level, suboptimum fertility, mastitis, negative energy balance, and
ketosis are major issues in dairy farming. These problems are widespread on dairy farms …