Ansc 4380 Study guides, Class notes & Summaries

Cross Breeding - the mating of individuals with different breed make-up -widely used in commercial beef production systems -improvements in production efficiency can be dramatic -does not eliminate the need for purebreds Heterosis - the average superiority of a crossbred individual over the average of breeds involved n the cross -arises from combining genes from different breeds so inferior recessive genes are concealed -offspring may be better than either paternal breed or better than av...

When was BQA implemented? - in 1982 by producers, USDA & FSIS Purpose of BQA - to avoid violative drug residues -currently, other factors exist that influence overall beef quality Principles of BQA were developed by who? Why? - -developed by Pillsbury *for quality control of food being supplied to NASA:* -hazard analysis & critical control point National BQA guidelines developed by: - The American Association of Bovine practitioners & state cattlemen's groups. Beef Quality Assurance gui...

Nutrient requirements of beef cattle: - -a balanced & cost effective nutrition program is essential to the success of any beef cattle operation -expensive range/pasture demand efficient utilization -nutrient requirements change throughout the production cycle & among different classes of animals Nutrient requirements depend on: - -age -stage of production -sex -breed -environmental conditions -basal diet quality & amount Dry Matter Intake - no requirements for feed intake (estimate is ...

HACCP - Outline for quality assurance in packing houses and processing facilities What could go wrong, how to fix it Why was BQA developed? - Avoid violative drug residues Minimize pathogen contamination and carcass defects Injection Site Management - -all injections should be given in neck region -no more than 10cc per site -space injections at least 4 in apart -never mix products -injection sites should be clean if possible Quality Grades - Prime, Choice, Select Best Breed: Angus Yi...

What is essential to any successful beef cattle operation? - - a balanced and cost effective nutrition program What factors influence dry matter intake? - - animal weight -condition -stage of production -level of milk production -forage quality -environmental conditions - amount/ type of supplement How do I determine how much supplement? - (nutrient req. of animal) - (nutrient content of animal) = deficit What are some required vaccines? - - brucellosis - leptospirosis - campylobact...

Parturition - The action or process of giving birth, labor. Entry of fetus into birth canal is described by: - Presentation, Position, and Posture Presentation - Refers to whether the fetus is coming forward (anterior), backwards (posterior) or sideways. Position - Refers to how the calf is positioned in relation to the cow. Right-Side Up (dorsal) - When the calf's back is up towards the cows back (spine) Upside down (Ventral) - When the calf's back is down on the bottom of the pelvis. ...