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목록vet medicine (13)
VET space / 수의대생 블로그
C2. Most important meat production traits of pig (fattening ability, carcass merit) Significance of pig breeding: Advantages: High genetic diversity High reproductive capacity Effective pork production Good adaptability: fat ratio was decreased by more than 70% within 20 years Investment with fast return of costs Continuous source of income Fattening on pigs increase with age(days) and weight..
B10 Milk production, milking and udder hygiene Fat + protein yield: 600kg/lactation 10,000 kg/lifetime Milking systems: During milking the milk is collected & the amount is registered For hygiene- teats are cleaned and disinfected. Milking systems can be: tied system, un-tied system, robot, carousel, or standing in a line to enter one at a time to the milking facility Milk Meter: Measure the a..
B9 Dairy cattle breeds (classification, characteristics, types), breeds for cheese industry milk production Montbeliarde Red & white pied color Produces milk mainly for cheese industry high content of kappa casein BB variants Annual yield = 7500 L / year 3.9% butterfat 3.35% protein Bulls 900-1200kg Cows 145cm @ withers, 600-700kg Normande Well suited for cheese production - camembert chees..
B8 Dairy cattle breeds (classification, characteristics, types), breeds for production of consumption milk UK single purpose dairy breeds (Channel Island breeds): Produce protein & fat rich milk: Jersey cattle Small breed Cows 360-540kg Bulls 540-820kg High butterfat content (6%) High protein content (4%) Annual yield = 5400kg/ year Guernsey cattle Buff coat color with distinct white spots (yel..
B6 Importance of udder evaluation in dairy cattle, udder health, milk hygiene Udder evaluation- importance For breeding Important to check up udders to avoid the “bad breeders habit”: Formalism (Ayrshire cow) Functionalism- bad function for Estimation of conformation conformation is estimated based on a Linear conformation scoring system of functional traits. (9 point scale) Somatic cell coun..
B4. Breeding goals and characteristics (traits) of dairy cattle, milk properties • The estimation of the breeding value is one of the stations of the animal production’s cycle. • On the course of the breeding value estimation we grade our candidate individuals according to their estimated value. Then, we designate the real future parents from this ordinal list of candidate individuals (in most..
B11. Breeding goal and characteristics (valuable traits) of beef and dual purpose cattle, Breeding goal of beef and dual purpose cattle Most common breeding goals: Single purpose: Belgian blue, Herford, Angus Dual purpose: milk pointed (milk & meat) such as Simmental, meat pointed (meat & milk) multipurpose: milk, meat and draught valuable traits of beef cattle: primary traits: meat producing..
B12 Estimation of breeding value in beef cattle Places of investigation: In field- farm, race, place, open range, exhibition. The breeding value estimation done at the farm evaluates the performances at the real place of production. In station- centralized test station, individual feeding, control of live weight, evaluation of meatiness through ultrasound (rib eye area, live weight, cannon girth..