IDAHO LIVESTOCK INSPECTION TRAINING
AUDITING EXERCISES
Exercise #1 : Egg production
-
it takes about 20 weeks to raise a pullet from a day old chick
the first 6 weeks require a starter ration; then a grower ration is
adequate
it takes 19 pounds feed to raise a pullet from a day-old chick;
of this, 21% is the starter ration
a laying hen eats 0.25 pounds feed per day
a hen lays 268 eggs per year
1. The operation you are inspecting has 2200 pullets which began laying three weeks
ago. The producer states that he raised these from day-old chicks, using a certified
organic ration.
a. How many tons organic feed would you expect was used for raising
the pullets?
b. Of this feed, how many pounds organic grower ration would you
expect were used for raising the pullets?
2. The operation you are inspecting shows shipping records for an average of 1200
dozen organic eggs per week for the last three months.
a. How many hens would you expect in the laying house?
b. How much organic feed would you expect is required at this operation
(on a weekly basis)?
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Exercise #2 : Dairy Production
-
average cow live weight is 650 kg
production average is 6569 litres/cow/year
average cow requires 2052 kg concentrate/year
average cow needs 14 kg (dry matter basis) hay per day
ideally each cow should receive 6-8 kg straw bedding per day
1. The dairy operation you are inspecting has a milking herd of 70 cows, including the
dry cows. The concentrate is milled on the farm, using the following recipe :
- 440 lbs oats (own certified organic crop)
- 430 lbs barley (own certified organic crop)
- 80 lbs roasted soybean splits and cracks (purchased with certified organic
documentation)
- 50 lbs mineral/vitamin mix (approved by CB)
a. How much feed would you expect is milled on this farm on a yearly basis?
b. How many metric tonnes (one metric tonne = 1000 kg) of roasted organic
soybean splits and cracks would be purchased by this farm on a yearly basis?
2. The dairy operation (80 cows including dry cows, all replacement stock raised on the
farm) you are inspecting has a system of intense grazing management in 21 paddocks.
Some are also used for a first cut of hay early in the grazing season. Additional fields
are used for dry hay an haylage production. All concentrate and bedding is purchased.
The OSP states that 6-8 kg of straw are purchased each year.
a. You review the straw purchases and see reciepts for 4 loads of 500 small
square bales of straw per load. How will you report this?
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Exercise #3 : Hog operation
-
hog has a typical carcass weight of 198.4 lbs
in primary cuts, this should yield :
- 49.6 lbs fresh ham
- 43.7 lbs loin
- 23.8 lbs belly
- 19.8 lbs picnic
- 17.9 lbs butt
1. At the hog operation you are inspecting, reports show that a total of 742 certified head
were shipped during the most recent quarter to an approved custom slaughtering
/cutting operation. The producer then distributes to his customer base of stores and
restaurants. As you tally up the sales for the quarter (fresh primary cuts only), what
total weight per cut would you expect to see?
2. At the hog operation you are inspecting, you are shown invoices for the previous 4
week period for fresh primary cuts sold which add up as follows :
- 28,869 lbs ham
- 25,403 lbs loin
- 13,855 lbs belly
- 11,547 lbs picnic
- 10,392 lbs butt
Shipping records indicate that for the same period, weekly live animal shipments
to the organically approved custom slaughtering/cutting operation were :
Week 1 : 120 head
Week 2 : 118 head
Week 3 : 122 head
Week 4 : 117 head
What can you conclude from your audit exercise?
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Exercise #4 : Roasting bird production
To produce roasting birds (9-12 lbs liveweight), feed
consumption ranges as follows :
1600-1770 lbs starter /100 birds (first 6 weeks)
and
1160-1270 lbs grower/100 birds (last 4 weeks)
1. The poultry operation you are inspecting has 4 invoices for day-old chicks purchased
last year, each indicating an arrival of 1500 chicks. Mortality is typically less than 2%
at this operation except for the second batch last year, during which 300 birds were
lost at the end of the sixth week.
a. How many birds could this operation sell last year?
b. How much starter feed was required last year?
c. How much grower feed was required last year?
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