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B3 Most important bovine genetic diseases Genetic mutations as breed traits: Muscle hypertrophy Genetic dysplasia/ achondroplasia ​Immunodeficiency BLAD (bovine lymphocyte adhesion deficiency) ulcers , loss of teeth , chronic pneumonia and diarrhoea —> early death Chediak-Higashi syndrome- autosomal recessive Blood circulation, hemostasis Haemophilia B (factor IX deficiency) Hyperbilirubinaemia ..

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..

B7 Estimation of breeding value in dairy cattle ​ Estimated breeding value: The estimation is done during the animal’s production cycle It is defined as the difference of the individual genetic merit (value) from the mean genetic merit of a reference population The individual breeding value changes according to the value (- the genetic merit) of the reference population or mating partners. BVi –..

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..

B5 Dairy cattle technologies (housing, feeding and milking systems) Dairy cattle (cows)- cattle cows bred to produce large quantities of milk, from which dairy products are made ​Technology of dairy cattle keeping: Life of a cattle: a dairy cattle life starts with birth: the cow & calf are most commonly together during the first 3-4 days (colostral period) milk feeding period: the calf Is separa..

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..