Sexed semen drives heifer replacement program

Sexed semen drives heifer replacement program

Stock and Land Beef
Sam and Christine McCluggage, Allansford, run a 700-cow herd and use sexed semen on their most fertile females which gives them more than enough heifer calves to select from as replacements.

Sam and Christine McCluggage, Allansford, run a 700-cow herd and use sexed semen on their most fertile females which gives them more than enough heifer calves to select from as replacements.

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This Allansford dairy far operation uses sexed semen as a tool to produce a large number of heifer calves as replacements and for sale.

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Sam and Christine McCluggage, Allansford, have been using sexed semen in their artificial insemination program for around six years.

The family runs a 700-cow herd and use sexed semen on their most fertile females which gives them more than enough heifer calves to select from as replacements.

Mr McCluggage said the used the sexed semen was used once over maiden heifers in a fixed-time AI with Angus bulls used to mop-up.

In the cow herd they used sexed semen in young (early calving) cows and cows that had calved down long enough, in the first two rounds of AI.

Conventional semen was used on other cows during that period. Beef semen (Angus) was used for the final six weeks of joining.

Mr McCluggage said they were able to breed double the number of replacement heifer calves required in the first six-seven weeks using the sexed semen.

He said they reared 400 dairy heifers, keeping 200 as replacements and selling the balance for export. The Angus cross calves were reared and sold depending on the market and the season.

"It's really got a place in our system. We have been doing this for six or seven years and fine tune as we go along," he said.

"We've now got a pretty solid template that we use."

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