Topic 60 Flashcards
Main aims of breeding
meat, milk, egg and wool production
Meat productive species
cattle, sheep, swine, buffalo, horse
How much meat per year?
270 million tons per year
Main pork producer
China
Main Beef producers
USA, Brazil, Argentina
Main lamb producers
Australia
Meat production ability
polygenic, complex, quantitative characteristics; muscle building ability decreases with age, fat production increases with age
Important genes in individual meat production
Muscle hypertrophy; Biotechnology; hormone therapy, GMO
Meat quality
Energy level, dry matter content, fat, protein, H2O, vitamin, cholesterol
Milk production and ability
Cattle, sheep, goat, camel; 600M tonne milk/year; USA largest (India, China); Fat, lactose, protein, casein, urea
Components of milk production
primary features: quantity, composition; Secondary features: persistency, milking speed
Determination of quantity
Daily milk production, lactation production, life performance, number of lactations
consumption
About 30% of all animal-flesh consumption occurs in countries that account for no more than 12% of the world population. Ranked from higher to lower levels of total consumption, these are: the USA, Australia, New Zealand, Argentina, Canada, and Western European countries
GMO
Creating a genetically modified organism
casein
found in mammalian milk, comprising c. 80% of the proteins in cow’s milk and between 20% and 45% of the proteins in human milk.[1]The j Casein has a wide variety of uses, from being a major component of cheese, to use as a food additive. The most common form of casein is sodium caseinate.
