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Dairy R&D in SA

by Heinz Meissner

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


Title Date Discipline Extract Keywords
GENOTYPE BY ENVIRONMENT INTERACTION IN SOUTH AFRICAN HOLSTEIN CATTLE IN REPRODUCTION AND PRODUCTION TRAITS

Discipline: genetic evaluation; 

 

 age at first calving, milk production, total mixed ration, pasture
DIVERSITY OF SPORE-FORMING SPOILAGE ORGANISMS AND THEIR ABILITY TO ATTACH TO STAINLESS STEEL.

Discipline: contamination; 

 Diversity of spore formers, extended shelflife milk, B.cereus, M.luteus, biofilm, spores
CHARACTERIZATION OF ESHERICHIA COLI STRAINS, SOME OF WHICH MAY BE PRESENT IN BULK MILK.

Discipline: contamination; 

 E.coli, foodborne pathogens, virulence, antibiotic resistance, shigatoxin, bulk milk
CARBON FOOTPRINT ESTIMATES SOMETIMES PROVIDE SURPRISING RESULTS.

Discipline: environment: 

 Cow-calf production, methane, pasture production, production levels, total mixed ration
YEAST EXTRACT CAN ACCELERATE FERMENTATION TIME OF YOGURT.

Discipline: yogurt; 

Researchers at the University of the Free State investigated whether the fermentation process in manufacturing yogurt could be accelerated on the premise that if successful, the cost of production should decrease. For that purpose they used as additive a water soluble auto-lysate of yeast, which is usually utilised for microbial growth support.

 peptides, accelerated fermentation, yogurt, yeast extract
WHAT IS THE ECONOMIC IMPLICATIONS OF SOMATIC CELL COUNT?

Discipline: Economics;

 

 Relative economic value, somatic cell score, breeding objectives
BACTERIOPHAGE THERAPY: IS THIS THE WAY TO GO WITH MASTITIS?

Discipline: mastitis; 

 bacteriophage, biological control, bovine mastitis, sensitivity assays, Staphylococcus aureus
GENOMIC SELECTION: WHAT IS IT AND HOW DOES IT WORK

Discipline: breeding; 

This overview was kindly provided by Prof Esté van Marle-Köster of the University of Pretoria.

Genomics defined in broad terms:

 genome, DNA, SNP markers, GEBV’s, chromosome
MANAGING HEALTHY SOILS FOR SUSTAINABLE PASTURE PRODUCTION.

Discipline: grazing/pastures; 

 fertility, microbial biomass, microbial functional diversity, organic matter, total nitrogen, plant production, soil disturbance, tillage
EFFECT ON FEED INTAKE, MILK PRODUCTION AND MILK COMPOSITION OF HOLSTEIN COWS BY REPLACING MAIZE GRAIN WITH WHEAT IN TOTAL MIXED RATIONS.

Discipline: Nutrition/feeding;

 Lucerne hay, energy sources, inclusion level, milk yield parameters, oat hay, wheat