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Question
Which group consumes the most water on a dairy:
a) dry cows,
b) heifers,
c)
calves
d) lactating cows
e) all of the above
a) dry cows,
b) heifers,
c)
calves
d) lactating cows
e) all of the above
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Question
How long should cows stand before lying down after milking to minimize teat
exposure to environmental pathogens?
a) 90 minutes,
b) 30 minutes,
c) 45 minutes,
d) 15 minutes,
e) 0 minutes
exposure to environmental pathogens?
a) 90 minutes,
b) 30 minutes,
c) 45 minutes,
d) 15 minutes,
e) 0 minutes
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Dairy Judging 2011
| Question | Answer |
|---|---|
| Which group consumes the most water on a dairy: a) dry cows, b) heifers, c) calves d) lactating cows e) all of the above | Lactating Cows |
| How long should cows stand before lying down after milking to minimize teat exposure to environmental pathogens? a) 90 minutes, b) 30 minutes, c) 45 minutes, d) 15 minutes, e) 0 minutes | 30 minutes |
| How much does a block of cheese weigh? a) 5 pounds, b) 10 pounds, c) 20 pounds, d) 30 pounds, e) 40 pounds | 40 pounds |
| Manure run off from a field is most likely to occur in what season? a) winter, b) fall, c) summer, d) spring, e) the chance is the same all year long | Winter |
| For a high producing mid-lactation cow the average body condition score should be: a) 2.00, b) 2.50, c) 2.75, d) 3.00, e) 3.25 | 2.75 |
| A hundred weight (cwt) weighs how many pounds? a) 25 pounds, b) 50 pounds, c) 100 pounds, d) 200 pounds, e) 250 pounds | 100 pounds |
| Lameness annually averages what percent among dairy herds? a) 25 to 30%, b) 0-10%, c) 30 to 40 %, d) less than 5%, e) greater than 40% | 25 - 30% |
| This state made it illegal to dock the tail of any horse or cow in January 2010: a) Wisconsin, b) Ohio, c) Michigan, d) Oregon, e) California | California |
| Which of the following is not a fat-soluble vitamin? a) Vitamin A, b) Vitamin B, c) Vitamin D, d) Vitamin E, e) Vitamin K | Vitamin B |
| Which cow stomach compartment allows it to eat coarse feeds such as haylage? a) omasum, b) abomasum, c) rumen, d) small intestine, e) reticulum | Rumen |
| The best genetics on a farm generally belong to which of the following groups? a)calves, b) yearlings, c) first calf heifers, d) old cows, e) all of the above | Calves |
| What is parturition? a) chewing, b) calving, c) harvesting silage, d) milking, e) medication | Calving |
| What percentage of all milk sold in the U.S. is pasteurized? a) 78%, b) 82%, c) 91%, d) 99%, e) 100% | 99% |
| Potassium carbonate can be sprayed on hay for what purpose? a) reduce drying time, b) preserve wet hay until it dries, c) increase digestibility, d) increase palatability, e) all of the above | Reduce drying time |
| When is the best time to feed anionic salts to prevent milk fever? a) dry off, b) 1 month prior to calving, c) 2 weeks before calving, d) 1 week before calving, e) at calving | 2 weeks before calving |
| What is the major buffer produced by cows that assists in maintaining optimum rumen pH? a) cellulose, b) calcium, c) phosphorus, d) lipids, e) saliva | Saliva |
| The breed with the highest average solids-not-fat content (%) in milk is: a) Ayrshire, b) Brown Swiss, c) Guernsey, d) Holstein, e) Jersey | Jersey |
| Which of the following is a part of the reproductive tract of the bull? a) ovaries, b) Cowpers gland, c) vulva, d) cervix, e) none of the above | Cowper's Gland |
| An increase in what compound is the result of rapid degradation of adipose tissue in the cow’s body? a) amino acids, b) ammonia, c) fatty acids, d) peptides, e) ketones | Ketones |
| Which of the following is NOT a postpartum disease of dairy cattle? a) abortion, b) milk fever, c) retained placenta, d) obturtor paralysis, e) prolapsed uterus | Abortion |
| This process breaks down fat globules down to a small, uniform size. a) pasteurization, b) equalization, c) homogenization, d) clarification, e) standardization | Homogenization |
| Milk used for ice cream would be classified as what? a) Class I, b) Class II, c) Class III, d) Class IV, e) No class exists for this use | Class II |
| On the Unified Dairy Cow Score Card, the category “rear feet and legs” accounts for how many points? a) 10, b) 15, c) 20, d) 25, e) 40 | 20 Points |
| If the heat detection rate is 30% and the conception rate is 40%, what is the pregnancy rate? a) 7%, b) 12%, c) 15%, d) 35%, e) 70% | 12% |
| Which nutritional disease is most often associated with laminitis? a) Johne’s, b) arthritis, c) ketosis, d) acidosis, e) traumatic gastritis | Acidosis |
| Which body part on a cow is used as the reference point to determine the height of the udder floor? a) hook, b) teat length, c) hock, d) tail, e) vulva | Hock |
| Which of the following are reasons that results in poor quality colostrum? a) pre-milking, b) young cow, c) dirty udder and teats, d) leaking teats, e) all of the above | All of the above |
| Which volatile fatty acid produced by the rumen is the primary source of energy and milkfat? a) acetic acid, b) butyric acid, c) propionic acid, d) none of the above, e) all of the above | Acetic acid |
| Which of the following is not an example of an environmental mastitis-causing pathogen? a) E. coli, b) Staph aureus, c) Klebsiella, d) Strep. dysgalactiae, e) Strep. uberis | Staph aureus |
| What is the minimum percentage of total solids-not-fat content in the legal definition of milk? A) 6.75%, b) 7.25% c) 8.%, d) 8.25%, e) 9.25% | 8.25% |
| The ideal temperature range for dairy cattle is 25 to 65 degrees F. In which of the following ways can a dairy cow lose body heat through: a) convection, b) conduction, c) radiation, d) evaporation, e) all of the above | All of the above |
| The estrous cycle consists of four stages. Which of the following is not one of the four stages? a) monoestrus, b) metestrus, c) diestrus, d) estrus, e) proestrus | Monoestrus |
| The current genetic model for evaluating bulls and cows is which of the following: a) PTA, b) animal model, c) net merit model, d) TPI, e) herdmate comparisons model | Animal model |
| Which of the following diseases is characterized by a cow that gains too much weight during the late lactation or the dry period? a) fat cow syndrome, b) Johne’s, c) overeating disease, d) ketosis, e) BVD | Fat cow syndrome |
| Which of the following factors should be considered when planning a waste management system? a) environmental, b) social, c) operational, d) legal requirements, e) all of the above | All of the above |
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