Dr Khama Kelman, Murdoch University, Murdoch (WA)

Khama Kelman
Khama Kelman

 

 

Big data delivers clearer growth picture for lambs

New research based on high-quality and large-scale data sets from the sheep industry’s Information Nucleus program will help breeders manage expectations about lamb growth rates, particularly for twins and triplets.

Data from the Sheep CRC’s research flocks has confirmed that lambs born and raised as multiples have a reduced response to increased sire PWWT (post weaning weight).



About Khama Kelman

Murdoch University post-graduate student Khama Kelman has used more than 160,000 lamb weights from over 17,000 lambs in the Information Nucleus program to accurately determine the effects of litter size on weaning and post-weaning lamb weights for lambs from high growth sires.

“Having access to such a powerful database and information for a very wide genetic range has enabled a precision that we have never had before,” Khama said.

“With the data coming from eight different sites across Australia over a five-year period, the information provided us with a comprehensive understanding of how production factors, such as multiple births, interact with genetic potential.

“The ability to integrate this information is a major breakthrough that will allow breeders and producers to have realistic expectations of the ability of a high PWWT sire to deliver increased lamb weights.”

Take home messages

  • The sheep industry’s bigger Information Nucleus program will help breeders manage expectations about lamb growth rates.

  • The more precise data confirms that lambs born and raised as multiples have a reduced response to increased sire PWWT

  • We now have more understanding of how production factors, such as multiple births, interact with genetic potential.

Read the full story by CLICKING HERE.


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