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Understanding Sample Day and Lactation Report

Control Number

This box is comprised of three parts, the first being the two letter breed indicator under BRD. HO stands for Holstein, BS Brown Swiss, JE Jersey, AY Ayrshire, GU Guernsey, MS Milking Shorthorn and XX for Crossbreed.

Next is the Temp String, which allows cattle to be categorized by pen number. The Control Number is the three-digit number that follows. It is used by the field technicians and processing centers for identifying animals in the herd.

A number of options exist for ordering or listing cows on ths sheet. Any of the identification fields can be used as well as listing by Temporary or Permanent Strings. Age at calving, test day milk and milk ranking are other choices.

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Understanding Sample Day and Lactation Report

Cow Identification

Two numbers are located in this box for each animal. The number on top is the Cow Identification. Depending on whether the animal is registered or not, this space will contain a USDA identification number used by breed registries or the calfhood vaccination number. The National ID number can alternatively be listed.

Sire Identificationis located below that. This space contains the National Association of Animal Breeders (NAAB) Code for the bull.

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Understanding Sample Day and Lactation Report

SCC Scores and Milk

Milk test weights and Somatic Cell Count (SCC) data are shown in this column for the previous six test dates, not including the current test. This presentation gives you an idea of the lactation curve and SCC trend for each cow.

SCC scores greater than 200 are shown in red. This means the cow is infected and further management steps should be taken. If the cow was dry during one of the test dates, a D will appear in the box.

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Understanding Sample Day and Lactation Report

Sample Day Data

This includes the data from the current test day. The milk test weights and SCC data are present for the test. Again, SCC scores over 200 are in red indicating a mastitis problem. Cattle that are dry or not current in the herd will be indicated as so.

Fat % and Protein % are listed next for the current test.

Finally, Management Level Milk (MLM) and Linear Score (LNSC) are shown on the right of this column. MLM, also known as 150-day milk, converts milk production to a common base: 150th day of lactation, second lactation, 4.0% fat and 3.3% protein. Using MLM provides a production evaluation that is more sensitive to management changes. Similar to the previous column, LNSC over 4.0 will be shown in red. This also indicates an infection.

AgSource members have a number of information choices in this section. Management Level Milk and Linear Score are the defaults, however any of the following can be substituted: Solids Non-Fat, Fat Corrected Milk, Energy Corrected Milk, Milk Urea Nitrogen, Cow Body Weight, Body Condition Score, Type Classification, Predicted Transmitting Ability MFP$, Predicted Transmitting Ability Net Merit, Lactation Average Linear Score or Nine Month Projected $ Value.

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Understanding Sample Day and Lactation Report

Barn Name

Two items are contained in this column. On the left is the control number. To the right, you will find either the eight-letter Barn Name or a Visible ID of each cow. These vary on your preference of sorting your animals.

Understanding Sample Day and Lactation Report

Lactation Totals to Date

This section of the report contains the most up to date information on the animal's lactation. It provides information like Lactation Number and Days in Milk

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Understanding Sample Day and Lactation Report

305 M.E.

This section provides either the cow's actual 305 day Mature Equivalent (M.E.) production if her lactation to date is 305 days or longer or a projection of her 305 day M.E. production is expected to be. The 305 day Mature Equivalent term standardizes each cow's age and season she calved to standard values and is designed to "level the playing field" so you can determine if a two year old producing 21,000 pounds of milk is superior to a five year old producing 22,000 pounds.

This is another section where AgSource members have a multitude of choices. Instead of 305 Mature Equivalent production, members can choose to use Actual 305 day production. Cows with less than 305 days in milk will have their projections based on actual and not the adjusted 305 day M.E. values.

The "under column" in this section is a "Ranking" column. the following choices are available for ranking each cow:

Letter grade - milk only, Letter grade - fat only, Letter grade - milk/fat, Letter grade - milk/fat/protein (Default), $ Value - milk only, $ Value - milk/fat, $ Value - milk/fat/protein, % Diff. Herd M.E. - milk, % Diff. Herd M.E. - milk/fat, % Diff. Herd M.E. - milk/fat/protein, Deviation Herd M.E. - milk/fat/protein, Cheese yield - based on actual or expected 305 day production or No Ranking.

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Understanding Sample Day and Lactation Report

Repro Status

The top line in this section lists the cow's service sire and the bottom line displays her due date. The sub-column with an "X" at the top denotes the number of breedings that have been recorded for this cow this lactation. If the data in this section is green, this means the cow has been recorded as confirmed pregnant. The bottom line of the sub-column will display a "P" in this case. If a cow has not been recorded as confirmed pregnant but is 90 days or more past her latest recorded breeding date, the bottom line of the sub-column will display a "E".

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Understanding Sample Day and Lactation Report

List Order

List order is another identification option.

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Understanding Sample Day and Lactation Report

Test Day Averages

This section provides information on the number of cows actually milking on the most recent test day and their average production. %DIM is takes the total number of cows (dry and milking) times the average number of days they were milking since the last test day divided by the number of days since the last test day times the total number of cows in the herd.

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Understanding Sample Day and Lactation Report

Rolling Herd Average

This section provides the same information you will find in Block E on the Herd Summary. The number of cows listed is the total number of milking and dry cows. Days In Milk is the average lactation length of your herd and the production values are annual averages.

 
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