Difference between revisions of "Required Carcass Data Collection for Use in Genetic Evaluations"

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The primary goal of all genetic evaluation programs should be determining unbiased values of genetic merit for each parent tested. Unfortunately, economic hurdles may prevent this from being totally possible in carcass merit evaluations. However, below are guidelines that my minimize the effect of some of these hurdles.
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[[Category: Genetic Evaluation]]
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[[Category:Data Collection]]
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The primary goal of all genetic evaluation programs should be determining unbiased values of genetic merit for each parent tested. Unfortunately, economic hurdles may prevent this from being totally possible in carcass merit evaluations. However, below are guidelines that may minimize the effect of some of these hurdles.
  
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A proper contemporary group must be identified at harvest with a minimum of 3 progeny of the same sex (harvested on the same date) with at least 2 reference sires for carcass merit evaluation represented.   
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A proper contemporary group must be identified at harvest with a minimum of 3 progeny of the same sex from each sire, harvested on the same date, with progeny of at least 2 reference sires also in the contemporary group.   
  
 
Producers should identify the following information on all animals prior to harvest:  
 
Producers should identify the following information on all animals prior to harvest:  
  
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    1. Sire: registration number, herd ID and birthdate.
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# Sire: registration number, herd ID and birthdate.
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    2. Dam: registration number, herd ID, and birthdate. (No registration number needed  
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# Dam: registration number, herd ID, and birthdate. (No registration number needed if a commercial dam)
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        if a commercial dam)
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# Calf: registration number, herd ID, birthdate, sex, birthweight, weaning weight and yearling weight. (No registration number needed if a commercial calf)
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    3. Calf: registration number, herd ID, birthdate, sex, birthweight, weaning weight  
 
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        and yearling weight. (No registration number needed if a commercial calf)
 
  
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All of the [https://en.wikipedia.org/wiki/Data_quality recommended carcass data collection traits]  must be identified at harvest.  
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== Harvested animal data==
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All of the recommended carcass data collection traits should be identified at harvest.  
  
 
This includes:
 
This includes:
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{| class="wikitable" style="margin: auto;"
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!colspan="6"|'''Recommended Carcass Data Collection Traits'''
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|-
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|'''Number'''
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|'''Trait'''
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|-
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|1
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|[[Identification Systems| Animal ID]]
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|-
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|2
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|Harvest Date
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|-
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|3
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|Packing Plant Name and Location
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|-
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|4
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|[[Identification Systems | Carcass ID]]
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|-
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|5
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|[[Hot Carcass Weight| Hot Carcass Weight]]
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|-
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|6
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|[[Quality Grade#Marbling | Marbling Score]]
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|-
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|7
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|[https://meat.tamu.edu/beefgrading/ Carcass Maturity]
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|-
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|8
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|[[Back Fat Thickness| Fat Thickness]]
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|-
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|9
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|[[Ribeye Area| Ribeye Area]]
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|-
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|10
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|[https://meat.tamu.edu/beefgrading/ Percent Pelvic, Heart and Kidney Fat]
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|-
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|11
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|[[Yield Grade| Yield Grade]]
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|-
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|12
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|[[Quality Grade| Quality Grade]]
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|}
  
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    1) animal ID
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==Ultrasound data on market steers==
  
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    2) harvest date
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Ultrasound data may be collected on fed cattle (steers and/or heifers) just before harvest time. The ultrasound data should be interpreted by an approved and authorized Ultrasound Guidelines Council lab. Ultrasound data required includes:
  
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    3) packing plant name and location
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# Animal ID
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# Scan date - animals must be scanned in the age window accepted by your specific breed association
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# Contemporary group, test type, sex, diet concentration level
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# Ultrasound scan weight taken within 7 days of scanning
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# Rib fat
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# Rump fat
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# Percent intramuscular fat
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# Ribeye area
  
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    4) carcass ID
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Note: Most breed association require weaning weight submission before processing ultrasound data.
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    5) hot carcass weight
 
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    6) marbling score
 
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    7) carcass maturity
 
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    8) 12th fat thickness
 
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    9) ribeye area
 
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    10) percent pelvic, heart and kidney fat
 
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    11) final calculated yield grade
 
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    12) quality grade.
 

Latest revision as of 13:26, 8 July 2021

The primary goal of all genetic evaluation programs should be determining unbiased values of genetic merit for each parent tested. Unfortunately, economic hurdles may prevent this from being totally possible in carcass merit evaluations. However, below are guidelines that may minimize the effect of some of these hurdles.

A proper contemporary group must be identified at harvest with a minimum of 3 progeny of the same sex from each sire, harvested on the same date, with progeny of at least 2 reference sires also in the contemporary group.

Producers should identify the following information on all animals prior to harvest:

  1. Sire: registration number, herd ID and birthdate.
  2. Dam: registration number, herd ID, and birthdate. (No registration number needed if a commercial dam)
  3. Calf: registration number, herd ID, birthdate, sex, birthweight, weaning weight and yearling weight. (No registration number needed if a commercial calf)

Harvested animal data

All of the recommended carcass data collection traits should be identified at harvest.

This includes:

Recommended Carcass Data Collection Traits
Number Trait
1 Animal ID
2 Harvest Date
3 Packing Plant Name and Location
4 Carcass ID
5 Hot Carcass Weight
6 Marbling Score
7 Carcass Maturity
8 Fat Thickness
9 Ribeye Area
10 Percent Pelvic, Heart and Kidney Fat
11 Yield Grade
12 Quality Grade

Ultrasound data on market steers

Ultrasound data may be collected on fed cattle (steers and/or heifers) just before harvest time. The ultrasound data should be interpreted by an approved and authorized Ultrasound Guidelines Council lab. Ultrasound data required includes:

  1. Animal ID
  2. Scan date - animals must be scanned in the age window accepted by your specific breed association
  3. Contemporary group, test type, sex, diet concentration level
  4. Ultrasound scan weight taken within 7 days of scanning
  5. Rib fat
  6. Rump fat
  7. Percent intramuscular fat
  8. Ribeye area

Note: Most breed association require weaning weight submission before processing ultrasound data.

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