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Cashmore Park

  • Home
  • Livestock
    • Cashmore Park Maternals
      • Cashmore Oaklea Maternals
      • Cashmore Coopworths
    • Cashmore Park Terminals
    • Cashmore Nudies
      • Nudie Ewes
      • Polyestrous Ewes
    • Cashmore Twinner Cattle
      • Management of Twinning Cows
      • Calving Time
      • Twinner Sires
  • News / Events
    • News
  • Sales
    • Ram Sales
    • Cattle Sales
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Cashmore Twinner Cattle

Cashmore Twinner Cattle


twinners cows and calves
Cashmore Twinners

 

The most profitable ewe rears 2 lambs.
The most profitable cow rears 2 calves.

 

Fertility and Efficiency

At Cashmore we have always been interested in improving fertility of our self replacing maternal sheep flock.  Approximately 70 % of a ewe’s annual energy requirement goes into maintenance, with the first lamb adding 10% and the second a further 5 %.  So as we drive reproduction rates higher the proportion of output of lamb relative to the weight of the ewe and hence the energy required to maintain her changes.  This increases efficiency with more lamb product per hectare and higher profitability resulting.

Sheep farmers have 3 mechanisms to “set” desired reproduction rates.

The first is time of lambing with ovulation rates increasing with decreasing day length from the summer to winter solstice period. This is in the order of 100% across 150 days.

The second is weight/condition of the ewe with approx 3% extra fetus pregnancy scanned per 1 kg increase of weight of a XB ewe.

The third is better DNA.

Cattle are not affected by time of calving and show very small reproduction change to weight, ie they are hotwired to have just one ovulation.

To increase beef production efficiency one strategy is to retain the previous year calf drop and run into a second spring, which in effect decreases the % of maintenance energy across the herd with more young growing animals available to consume pasture..

The second is better ovulation/reproduction DNA.

Current research indicated that cows with twins produce 60% more calf weight at weaning than those rearing singletons.  It seems reasonable to expect a self replacing herd pregnancy scanning 150% and weaning 140% calves will produce 20% more beef than a standard system.

1/2 bred Twinner x Angus Cow with 3/4 bred Twinner bull calves


1/2 bred Twinner x Angus Cow with 3/4 bred Twinner bull calves

Her third set of twins.

25 month full blood, three 3/4 blood 13 months old, one 13 month old full blood.


L to R: 25 month full blood, three 3/4 blood 13 months old, one 13 month old full blood.

Origins

In 2008 we purchased a full blood Twinner bull from Leo and Liz Cummins and joined him with Angus and Black Baldy (Hereford X Angus) cows.

Since then we have added more bulls, semen from USA MARC Twinner bulls and Embryos twice from Canada.

All cows are 1/2, 3/4, 7/8 or full blood and selected on twinning, type and feet, colour, poll and temperament.

2015 drop PTIC heifers @ 110% pregnancy scanning rate


2015 drop PTIC heifers @ 110% pregnancy scanning rate


full blood canadian twinner


Full blood Canadian Twinner bull

Latest News

  • 2020 Ram sales

    Main sale will be via Auctions Plus 9 th October. Maternal and Nudie rams available. Private sales on property to follow.Read More
  • 2016 Drop Twinner Calves

    The 2016 drop Twiner calves were weaned at 210 day old as cows slipped to condition score 2.5 on rank Phalaris pasture. Single calves averaged 237 kg live wt , twin reared calves averaged 203 kg live, a weight  advantage of 71 % more calf reared per cow. The best two cows reared twins averaging […]Read More

Stud Calendar

Cashmore Park pre sale ram selection day

5th October 2020, 114 Wilmots Rd, Cashmore

Cashmore Park Open Day

26 September 2019,  114 Wilmots Rd, Cashmore

Cashmore Oaklea Ram Sale

Friday 11th October 2019, Hamilton, Vic

Yalgoo Female Efficiency Day

Tuesday 23rd May 2017
Walcha, NSW. John will be speaking

CASHMORE PARK
John & Brigita Keiller
114 Wilmot's Road, CASHMORE VIC 3305
W: 03 5526 5248 | M: 0409 804 638

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