The Research Column | Milk South Africa

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by Heinz Meissner

Click on any of the publications below to read more about the specific topic:

The effect of fertilizer nitrogen input to grass-clover swards and calving date on the productivity of pasture-based dairy production.
Discipline: pastures & grazing; Keywords: white clover, nitrogen fertilizer, milk production, milk processability.
Antibiotic use and potential economic impact of implementing selective dry cow therapy in large US dairies.
Discipline: mastitis; Keywords: selective dry cow therapy, antibiotic use, economics, optimization.
Breeding for reduced methane emission and feed-efficient Holstein cows: An international response.
Discipline: environment; Keywords: methane production, residual methane, methane yield, feed efficiency.
Effects of supplemental calcium gluconate embedded in a hydrogenated fat matrix on lactation, digestive, and metabolic variables in dairy cattle.
Discipline: feed additive; Keywords: hindgut, prebiotic, milk fat.
Meta-analysis of effects of inoculation with Lactobacillus buchneri, with or without other bacteria, on silage fermentation, aerobic stability, and performance of dairy cows.
Discipline: silage inoculants; Keywords: corn silage, heterolactic bacteria, Lactobacillus buchneri, Lactobacillus hilgardii
Effect of protein level and methionine supplementation on dairy cows during the transition period.
Discipline: nutrition; Keywords: dry matter intake, blood markers, milk fat, immune system.
Effect of partial exchange of lactose with fat in milk replacer on ad libitum feed intake and performance in dairy calves.
Discipline: calf rearing; Keywords: calf, lactose, fat, milk replacer.
Effect of source and level of forage in the diet on in vitro ammonia emission from manure of Holstein and Jersey dairy cows
Discipline: environment; Keywords: manure ammonia, emissions, high and low roughage diet, breed, NDF.
Increasing temperature and pH can facilitate reductions of cephapirin and antibiotic resistance genes in dairy manure slurries.
Discipline: AMR & environment; Keywords: antibiotic resistance gene, cephapirin, dairy manure slurry.
Impacts of Climate Change: Perception and reality.
Discipline: environment: Keywords: climate change, extreme weather conditions, human well being, green revolution, carbon dioxide, clean water, fertilizer.