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QR Challenge: Fall 2017 ANSI 1124 Dairy Lab

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question

Answer

1. Welcome to the OSU Ferguson Family Dairy Center
2. Q1. What “Grade” is the OSU Dairy and how often is the Dairy facility inspected?
3. A1. The OSU Dairy is a Grade “A” Dairy and it is inspected every 6 months
4. Q2. What breed of cows are milked at the OSU Dairy?
5. A2. Holstein and Jersey
6. Q3. How many times a day and at what times of the day are the cows milked at the OSU Dairy?
7. A3. Two times per day at 4:30 a.m. and 4:30 p.m.
8. Q3 Comment. It is “udderly” amazing how a cow produces milk. It takes approximately 500 liters of blood to supply the mammary gland with the different constituents needed to make 1 liter of milk.
9. Q3 Comment. The lactation period, or the length of time a cow can produce milk before having another calf, is 305 days. In 305 days, a good dairy cow can produce 2,326 gallons or 20,000 pounds, which is equivalent to 37,216 glasses of milk!
10. Q3 Comment. It is “udderly” amazing how a cow produces milk. Milk is approximately 87% water and 13% solids. As it comes from the cow, the solids portion of milk contains approximately 3.7% fat and 9% solids-not-fat.
11. Q3-Comment. It is “udderly” amazing how a cow produces milk. Milk Fat carries the fat-soluble vitamins A, D, E, and K.
12. Q3-Comment. It is “udderly” amazing how a cow produces milk. The solids-not-fat portion consists of proteins - primarily casein and lactalbumin; carbohydrates - primarily lactose; and minerals – mainly calcium and phosphorus. Milk also contains significant amounts of riboflavin and other water-soluble vitamins.
13. Q3-Comment. It is “udderly” amazing how a cow produces milk. Be sure to view the posters pertaining to the anatomical structures of the mammary gland and the ligaments that provide support of the mammary gland.
14. Q4. How long a period of time is a cow usually milked following parturition.
15. A4. About 10 months after giving birth.
16. Q5. Does a cow produce the same amount of milk each day?
17. A5. Peak milk production occurs at somewhere between 60 and 90 days into lactation and the tapers off until she is dried off - thus a normal lactation curve is a period of around 305 days, which allows for a 60 day dry-off period for her to get ready to have another calf.
18. Q6. How old are the cows at the OSU Dairy?
19. A6. The life of a dairy cow will vary from farm to farm and from cow to cow; some cows can live and be productive for as long as 10 to 12 years; while others may have a much shorter life. The average number of lactations for a Holstein in the U.S. is 2.75 lactations.
20. Q6-Comment. Dairy producers work hard to keep their cows healthy for a long productive life. However, removing cows from the dairy herd is a common practice, which allows the dairy producer to bring in new, genetically superior cows that are more productive. Meat from cows that are no longer milking is a source of safe and nutritious protein.
21. Q7. What type of Milking Parlor is at the OSU Dairy and how many cows can be milked at one time?
22. Q8. Name and Describe what type of barn the cows are kept between the a.m. and p.m. milking?
23. A8. A Freestall Barn in which cows are "free" to move around to eat, drink, and rest wherever they like. Freestall barns provide the cow easy access to feed and clean water, as well as shade and protection from inclement weather.
24. Q9. What is used for bedding in the OSU free stall barn?
25. A9. Sand
26. Q10. What is the routine for handling manure/waste at the OSU Dairy?
27. A10. The freestall barn will be flushed with water which will flow to a settling basin where the sand will settle to the bottom – the waste water will then flow through the lagoon system and be used to irrigate the pasture.
28. Q11. It takes approximately 8 pounds of milk to make 1 pound of cheese. How many pounds of cheese can be made from the milk stored in one full tank of milk from the OSU dairy (show the math)?
29. Q12. Describe how the OSU Dairy tests for antibiotic levels in their milk before transport?
30. A12. A SNAP Test is used to test for antibiotic residues in the milk. Watch the following video (link to video; https://youtu.be/vsgAryBkkrE) and briefly describe how the SNAP test is performed.
31. Q13. Is it against the law to sell milk containing unsafe levels of antibiotics?
32. Q14. What is the most costly disease affecting the dairy cattle industry throughout the world?
33. A14. Mastitis
34. Q15. Describe how the OSU Dairy tests a cow for mastitis
35. A15. California Mastitis Test.
36. Q15-Comment. White blood cells (leukocytes) constitute the majority of somatic cells. The California Mastitis Test (CMT) utilizes a reagent that causes somatic cells to rupture then forms a gel with the cellular DNA. The thickness of the gel indicates the amount of somatic cells present.
37. Q16. What does the Somatic Cell Count determine?
38. A16. Somatic Cell Count is an indicator of the quality of milk and an indicator of overall herd health
39. Q17. Describe the most practical way to manage Mastitis.
40. Q17-Comment. There are three basic principles of mastitis control: eliminate existing mammary infections, prevent new mammary infections and monitor infection status.
41. Q17-Management Practices: proper maintenance and use of milking equipment; Proper milking procedures; pre- and post-dip; maintain a clean environment between milking times; dry free stall bedding.
42. Q18. How much feed does it take to feed one lactating dairy cow each day? (take a picture and include it in your lab report).
43. Q19. What is a TMR?
44. A19. A Total Mixed Ration is a method of feeding cows that combines all forages, grains, protein feeds, minerals, vitamins and feed additives formulated to a specified nutrient concentration into a single feed mix, which is offered on a free choice, or ab libitum, basis.
45. Q20. How is the Penn State Particle Separator used at the OSU Dairy?
46. A20. The Penn State Particle Separator provides a tool to quantitatively determine the particle size of forages in the TMR.
47. Q20-Comment. Guidelines for TMR for high producing dairy cows are 2 to 8 percent of the particles in the upper sieve, 30 to 50 percent in the middle sieve, 10 to 20 percent on the 4-mm sieve, and no more than 30 to 40 percent in the bottom pan.
48. Q21. How many times per day are the cows at the OSU Dairy fed?
49. A21. 2X per day – the cows will have fresh feed waiting for them after each milking
50. Q22. How is the feed delivered to the cows at the OSU Dairy (take a picture and include it in your lab report)
51. A22. a feed mixer will hold all the ingredients for the TMR (including water) and dispense the feed in the fence line feed lane
52. Q23. What happens to the baby calves after they are born and how long do the baby calves stay in these white huts?
53. A23. Calves are immediately given colostrum. Calves are not usually allowed to nurse from their mothers due to the chance of the mother developing mastitis. Calves are fed milk twice per day along with grain. Calves are weaned and removed from the individual huts at 4 to 6 weeks of age when they are consuming 4 to 6 pounds of grain per day.
54. Q24. What is colostrum?
55. A24. Colostrum is the first milk the mother produces after giving birth – is usually a very thick, sticky, yellowish colored milk that is produced for the first few days after giving birth. It is rich in immunoglobulins, which are involved in promoting the immune system in the newborn. Colostrum also has higher amounts of growth factors, cytokines, and nucleosides than are found in regular milk.
56. A24. The colostrometer is a hydrometer which is placed in a cylinder containing colostrum and allowed to float freely that measures specific gravity and, using a color-coded scale calibrated in milligrams per milliliter (mg/mL) of immunoglobulins (Ig), converts specific gravity to Ig concentration. Colostrum that tests "green" contains > 50 mg/mL of Ig, "yellow" contains 20 to 50 mg/mL, and "red" contains < 20 mg/mL of Ig.
57. Q25. Why are the calves kept in the individual huts and not in a large group hut?
58. A25. Calves can be monitored individually for milk and feed intake as well as sickness. If a calf is sick then it will not be in contact with other calves and the spread of disease can be minimized.
59. Q26. Are the calves ever kept in the large group hut?
60. A26. Yes, following weaning small groups of calves are mixed together. Mixing of animals at any stage in life will cause some level of stress due to animals establishing hierarchical positions and some reduction in gain and performance may be observed.
61. Q27. What happens to the calves when they are moved from the large group hut?
62. A27. The calves will be grouped together with other animals of similar age and size and grown until they are ready to be bred, which is usually about 14 to 16 months of age.
63. Q28. Do you see any Mature Breeding Bulls at the OSU Dairy?
64. A28. The answer is No – as all the females are bred by artificial insemination. Watch my video on OSU SUNUPTV talking about Artificial Insemination - https://youtu.be/stvnGYcKz60
65. Q29. How old is that cow?
66. A29. Dentition is the development of teeth within the mouth. Cattle have upper and lower molars, but have only lower incisors (they have a dental pad on the upper). It is the incisors that are used to estimate the age of the cow.
67. Q29-Comment. Estimating a cow's age by her teeth is a very subjective assessment; not everyone will estimate a cow's age the same. Estimating a cow’s age by their teeth involves observing how many incisor teeth are present, what type of incisor teeth are present ("baby" teeth or “permanent” teeth), the degree of wear, and their overall appearance.
68. Q29-Comment. Be familiar with the posters covering the basics of how age is estimated in cattle. Be sure you can answer the question - How old is that cow?
69. Q30.What is the difference between blood plasma and blood serum?
70. A30. For tests requiring serum, a blood sample is collected in a vacutainer tube containing no anticoagulant, as the blood must be allowed to clot.
71. A30. For tests requiring plasma, a blood sample is collected in a vacutainer tube containing an anticoagulant, as the blood must not be allowed to clot.
72. Q30-Comment. Be familiar with the posters covering the differences between Blood Plasma and Blood Serum and the color of the vacutainer tubes used for each.
73. Q30-Comment. A vacutainer tube is often times used to collect blood samples; a vacutainer tube is a glass tube with a rubber stopper (different colors) from which air has been removed to create a vacuum. A vacutainer hub holds the vacutainer tube and needle.
74. Q31. Describe the ways to collect genetic material that can be used for genomic testing.
75. Q31-Comment. Be familiar with the posters covering the “Collection of Genetic Material.”
76. Q32. What are those structures? Make sure you get your diagrams filled out of the external and internal anatomy of the cow!
77. Q33. What are those structures? Make sure you get your diagrams filled out of the anatomy of the cow mammary gland!

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Welcome_to_the_OSU_Ferguson_Family_Dairy_Center

Question 1 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q1._What_“Grade”_is_the_OSU_Dairy_and_how_often_is_the_Dairy_facility_inspected?

Question 2 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A1._The_OSU_Dairy_is_a_Grade_“A”_Dairy_and_it_is_inspected_every_6_months

Question 3 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q2._What_breed_of_cows_are_milked_at_the_OSU_Dairy?

Question 4 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A2._Holstein_and_Jersey

Question 5 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3._How_many_times_a_day_and_at_what_times_of_the_day_are_the_cows_milked_at_the_OSU_Dairy?

Question 6 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A3._Two_times_per_day_at_4:30_a.m._and_4:30_p.m.

Question 7 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3_Comment._It_is_“udderly”_amazing_how_a_cow_produces_milk._It_takes_approximately_500_liters_of_blood_to_supply_the_mammary_gland_with_the_different_constituents_needed_to_make_1_liter_of_milk.

Question 8 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3_Comment._The_lactation_period,_or_the_length_of_time_a_cow_can_produce_milk_before_having_another_calf,_is_305_days._In_305_days,_a_good_dairy_cow_can_produce_2,326_gallons_or_20,000_pounds,_which_is_equivalent_to_37,216_glasses_of_milk!

Question 9 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3_Comment._It_is_“udderly”_amazing_how_a_cow_produces_milk._Milk_is_approximately_87%_water_and_13%_solids._As_it_comes_from_the_cow,_the_solids_portion_of_milk_contains_approximately_3.7%_fat_and_9%_solids-not-fat.

Question 10 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3-Comment._It_is_“udderly”_amazing_how_a_cow_produces_milk._Milk_Fat_carries_the_fat-soluble_vitamins_A,_D,_E,_and_K.

Question 11 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3-Comment._It_is_“udderly”_amazing_how_a_cow_produces_milk._The_solids-not-fat_portion_consists_of_proteins_-_primarily_casein_and_lactalbumin;_carbohydrates_-_primarily_lactose;_and_minerals_–_mainly_calcium_and_phosphorus._Milk_also_contains_significant_amounts_of_riboflavin_and_other_water-soluble_vitamins.

Question 12 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3-Comment._It_is_“udderly”_amazing_how_a_cow_produces_milk._Be_sure_to_view_the_posters_pertaining_to_the_anatomical_structures_of_the_mammary_gland_and_the_ligaments_that_provide_support_of_the_mammary_gland.

Question 13 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q4._How_long_a_period_of_time_is_a_cow_usually_milked_following_parturition.

Question 14 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A4._About_10_months_after_giving_birth.

Question 15 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q5._Does_a_cow_produce_the_same_amount_of_milk_each_day?

Question 16 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A5._Peak_milk_production_occurs_at_somewhere_between_60_and_90_days_into_lactation_and_the_tapers_off_until_she_is_dried_off_-_thus_a_normal_lactation_curve_is_a_period_of_around_305_days,_which_allows_for_a_60_day_dry-off_period_for_her_to_get_ready_to_have_another_calf.

Question 17 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q6._How_old_are_the_cows_at_the_OSU_Dairy?

Question 18 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A6._The_life_of_a_dairy_cow_will_vary_from_farm_to_farm_and_from_cow_to_cow;_some_cows_can_live_and_be_productive_for_as_long_as_10_to_12_years;_while_others_may_have_a_much_shorter_life._The_average_number_of_lactations_for_a_Holstein_in_the_U.S._is_2.75_lactations.

Question 19 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q6-Comment._Dairy_producers_work_hard_to_keep_their_cows_healthy_for_a_long_productive_life._However,_removing_cows_from_the_dairy_herd_is_a_common_practice,_which_allows_the_dairy_producer_to_bring_in_new,_genetically_superior_cows_that_are_more_productive._Meat_from_cows_that_are_no_longer_milking_is_a_source_of_safe_and_nutritious_protein.

Question 20 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q7._What_type_of_Milking_Parlor_is_at_the_OSU_Dairy_and_how_many_cows_can_be_milked_at_one_time?

Question 21 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q8._Name_and_Describe_what_type_of_barn_the_cows_are_kept_between_the_a.m._and_p.m._milking?

Question 22 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A8._A_Freestall_Barn_in_which_cows_are_"free"_to_move_around_to_eat,_drink,_and_rest_wherever_they_like._Freestall_barns_provide_the_cow_easy_access_to_feed_and_clean_water,_as_well_as_shade_and_protection_from_inclement_weather.

Question 23 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q9._What_is_used_for_bedding_in_the_OSU_free_stall_barn?

Question 24 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A9._Sand

Question 25 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q10._What_is_the_routine_for_handling_manure/waste_at_the_OSU_Dairy?

Question 26 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A10._The_freestall_barn_will_be_flushed_with_water_which_will_flow_to_a_settling_basin_where_the_sand_will_settle_to_the_bottom_–_the_waste_water_will_then_flow_through_the_lagoon_system_and_be_used_to_irrigate_the_pasture.

Question 27 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q11._It_takes_approximately_8_pounds_of_milk_to_make_1_pound_of_cheese._How_many_pounds_of_cheese_can_be_made_from_the_milk_stored_in_one_full_tank_of_milk_from_the_OSU_dairy_(show_the_math)?

Question 28 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q12._Describe_how_the_OSU_Dairy_tests_for_antibiotic_levels_in_their_milk_before_transport?

Question 29 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A12._A_SNAP_Test_is_used_to_test_for_antibiotic_residues_in_the_milk._Watch_the_following_video_(link_to_video;_https://youtu.be/vsgAryBkkrE)_and_briefly_describe_how_the_SNAP_test_is_performed.

Question 30 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q13._Is_it_against_the_law_to_sell_milk_containing_unsafe_levels_of_antibiotics?

Question 31 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q14._What_is_the_most_costly_disease_affecting_the_dairy_cattle_industry_throughout_the_world?

Question 32 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A14._Mastitis

Question 33 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q15._Describe_how_the_OSU_Dairy_tests_a_cow_for_mastitis

Question 34 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A15._California_Mastitis_Test.

Question 35 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q15-Comment._White_blood_cells_(leukocytes)_constitute_the_majority_of_somatic_cells._The_California_Mastitis_Test_(CMT)_utilizes_a_reagent_that_causes_somatic_cells_to_rupture_then_forms_a_gel_with_the_cellular_DNA._The_thickness_of_the_gel_indicates_the_amount_of_somatic_cells_present.

Question 36 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q16._What_does_the_Somatic_Cell_Count_determine?

Question 37 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A16._Somatic_Cell_Count_is_an_indicator_of_the_quality_of_milk_and_an_indicator_of_overall_herd_health

Question 38 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q17._Describe__the_most_practical_way_to_manage_Mastitis.

Question 39 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q17-Comment._There_are_three_basic_principles_of_mastitis_control:_eliminate_existing_mammary_infections,_prevent_new_mammary_infections_and_monitor_infection_status.

Question 40 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q17-Management_Practices:_proper_maintenance_and_use_of_milking_equipment;_Proper_milking_procedures;_pre-_and_post-dip;_maintain_a_clean_environment_between_milking_times;_dry_free_stall_bedding.

Question 41 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q18._How_much_feed_does_it_take_to_feed_one_lactating_dairy_cow_each_day?_(take_a_picture_and_include_it_in_your_lab_report).

Question 42 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q19._What_is_a_TMR?

Question 43 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A19._A_Total_Mixed_Ration_is_a_method_of_feeding_cows_that_combines_all_forages,_grains,_protein_feeds,_minerals,_vitamins_and_feed_additives_formulated_to_a_specified_nutrient_concentration_into_a_single_feed_mix,_which_is_offered_on_a_free_choice,_or_ab_libitum,_basis.

Question 44 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q20._How_is_the_Penn_State_Particle_Separator_used_at_the_OSU_Dairy?

Question 45 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A20._The_Penn_State_Particle_Separator_provides_a_tool_to_quantitatively_determine_the_particle_size_of_forages_in_the_TMR.

Question 46 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q20-Comment._Guidelines_for_TMR_for_high_producing_dairy_cows_are_2_to_8_percent_of_the_particles_in_the_upper_sieve,_30_to_50_percent_in_the_middle_sieve,_10_to_20_percent_on_the_4-mm_sieve,_and_no_more_than_30_to_40_percent_in_the_bottom_pan.

Question 47 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q21._How_many_times_per_day_are_the_cows_at_the_OSU_Dairy_fed?

Question 48 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A21._2X_per_day_–_the_cows_will_have_fresh_feed_waiting_for_them_after_each_milking

Question 49 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q22._How_is_the_feed_delivered_to_the_cows_at_the_OSU_Dairy_(take_a_picture_and_include_it_in_your_lab_report)

Question 50 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A22._a_feed_mixer_will_hold_all_the_ingredients_for_the_TMR_(including_water)_and_dispense_the_feed_in_the_fence_line_feed_lane

Question 51 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q23._What_happens_to_the_baby_calves_after_they_are_born_and_how_long_do_the_baby_calves_stay_in_these_white_huts?

Question 52 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A23._Calves_are_immediately_given_colostrum._Calves_are_not_usually_allowed_to_nurse_from_their_mothers_due_to_the_chance_of_the_mother_developing_mastitis._Calves_are_fed_milk_twice_per_day_along_with_grain._Calves_are_weaned_and_removed_from_the_individual_huts_at_4_to_6_weeks_of_age_when_they_are_consuming_4_to_6_pounds_of_grain_per_day.

Question 53 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q24._What_is_colostrum?

Question 54 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A24._Colostrum_is_the_first_milk_the_mother_produces_after_giving_birth_–_is_usually_a_very_thick,_sticky,_yellowish_colored_milk_that_is_produced_for_the_first_few_days_after_giving_birth._It_is_rich_in_immunoglobulins,_which_are_involved_in_promoting_the_immune_system_in_the_newborn._Colostrum_also_has_higher_amounts_of_growth_factors,_cytokines,_and_nucleosides_than_are_found_in_regular_milk.

Question 55 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A24._The_colostrometer_is_a_hydrometer_which_is_placed_in_a_cylinder_containing_colostrum_and_allowed_to_float_freely_that_measures_specific_gravity_and,_using_a_color-coded_scale_calibrated_in_milligrams_per_milliliter_(mg/mL)_of_immunoglobulins_(Ig),_converts_specific_gravity_to_Ig_concentration._Colostrum_that_tests_"green"_contains_>_50_mg/mL_of_Ig,_"yellow"_contains_20_to_50_mg/mL,_and_"red"_contains_<_20_mg/mL_of_Ig.

Question 56 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q25._Why_are_the_calves_kept_in_the_individual_huts_and_not_in_a_large_group_hut?

Question 57 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A25._Calves_can_be_monitored_individually_for_milk_and_feed_intake_as_well_as_sickness._If_a_calf_is_sick_then_it_will_not_be_in_contact_with_other_calves_and_the_spread_of_disease_can_be_minimized.

Question 58 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q26._Are_the_calves_ever_kept_in_the_large_group_hut?

Question 59 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A26._Yes,_following_weaning_small_groups_of_calves_are_mixed_together._Mixing_of_animals_at_any_stage_in_life_will_cause_some_level_of_stress_due_to_animals_establishing_hierarchical_positions_and_some_reduction_in_gain_and_performance_may_be_observed.

Question 60 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q27._What_happens_to_the_calves_when_they_are_moved_from_the_large_group_hut?

Question 61 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A27._The_calves_will_be_grouped_together_with_other_animals_of_similar_age_and_size_and_grown_until_they_are_ready_to_be_bred,_which_is_usually_about_14_to_16_months_of_age.

Question 62 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q28._Do_you_see_any_Mature_Breeding_Bulls_at_the_OSU_Dairy?

Question 63 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A28._The_answer_is_No_–_as_all_the_females_are_bred_by_artificial_insemination._Watch_my_video_on_OSU_SUNUPTV_talking_about_Artificial_Insemination_-_https://youtu.be/stvnGYcKz60

Question 64 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q29._How_old_is_that_cow?

Question 65 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A29._Dentition_is_the_development_of_teeth_within_the_mouth._Cattle_have_upper_and_lower_molars,_but_have_only_lower_incisors_(they_have_a_dental_pad_on_the_upper)._It_is_the_incisors_that_are_used_to_estimate_the_age_of_the_cow.

Question 66 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q29-Comment._Estimating_a_cow's_age_by_her_teeth_is_a_very_subjective_assessment;_not_everyone_will_estimate_a_cow's_age_the_same._Estimating_a_cow’s_age_by_their_teeth_involves_observing_how_many_incisor_teeth_are_present,_what_type_of_incisor_teeth_are_present_("baby"_teeth_or_“permanent”_teeth),_the_degree_of_wear,_and_their_overall_appearance.

Question 67 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q29-Comment._Be_familiar_with_the_posters_covering_the_basics_of_how_age_is_estimated_in_cattle._Be_sure_you_can_answer_the_question_-_How_old_is_that_cow?

Question 68 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q30.What_is_the_difference_between_blood_plasma_and_blood_serum?

Question 69 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A30._For_tests_requiring_serum,_a_blood_sample_is_collected_in_a_vacutainer_tube_containing_no_anticoagulant,_as_the_blood_must_be_allowed_to_clot.

Question 70 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=A30._For_tests_requiring_plasma,_a_blood_sample_is_collected_in_a_vacutainer_tube_containing_an_anticoagulant,_as_the_blood_must_not_be_allowed_to_clot.

Question 71 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q30-Comment._Be_familiar_with_the_posters_covering_the_differences_between_Blood_Plasma_and_Blood_Serum_and_the_color__of_the_vacutainer_tubes_used_for_each.

Question 72 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q30-Comment._A_vacutainer_tube_is_often_times_used_to_collect_blood_samples;_a_vacutainer_tube_is_a_glass_tube_with_a_rubber_stopper_(different_colors)_from_which_air_has_been_removed_to_create_a_vacuum._A_vacutainer_hub_holds_the_vacutainer_tube_and_needle.

Question 73 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q31._Describe_the_ways_to_collect_genetic_material_that_can_be_used_for_genomic_testing.

Question 74 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q31-Comment._Be_familiar_with_the_posters_covering_the_“Collection_of_Genetic_Material.”

Question 75 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q32._What_are_those_structures?_Make_sure_you_get_your_diagrams_filled_out_of_the_external_and_internal_anatomy_of_the_cow!

Question 76 (of 77)

 


Fall 2017 ANSI 1124 Dairy Lab: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q33._What_are_those_structures?_Make_sure_you_get_your_diagrams_filled_out_of_the_anatomy_of_the_cow_mammary_gland!

Question 77 (of 77)