Chapter 15 & 22 Practice

Master animal husbandry! Practice questions cover castration, dehorning, AI, and hog production. Ideal for high school biology.

Castration and Dehorning castration removal of the testicles staggy appearance when a male calf begins to look mature burdizzo a tool for crushing the tubes above the testes elastrator tool for using a rubber band to prevent blood flow to the testes Age to use a spoon for dehorning Under 60 days Age to use hot irons for dehorning 5 months Age to use saws for dehorning Adult Artificial Insemination Advantages using sperm from the best bull improves record taking increases number of cows that can be bred easier to coordinate with estrus cycles reduces spread of disease Disadvantages a hired professional is needed it takes more time special equipment is needed there are extra steps to ensure safety Pig Production The production of purebred hogs is a specialized business. Registered purebred hogs make up less than 1% of the total hogs raised in the US. Much of the improvement in hog type comes from the work of purebred breeders. Purebred producers must be excellent managers. They often have higher investments in labor and record keeping. Purebred breeders are use genetic principles to produce improved breeding stock.Most of the pork consumed in the United States is produce by large commercial hog producers. Most commercial hog producers use some type of crossbreeding system to produce hogs for market. Feeder pig production is an enterprise that produces pigs for sale to feeders. Finishing pigs is when a operator buys feeder pigs and raises them to market weight. The farrow-to-finish system is the most common method of hog production. This involves having a breeding herd of sows and raising the pigs to market weight yourself. Two factors that have a major influence on profitability in swine production are: number of pigs weaned per sow; feed efficiency breed; adaptability to the environment number of pigs weaned per sow; adaptability to the environment breed; feed efficiency Pigs should be ear notched _, which is necessary for good record keeping. vaccination identification sexing grouping