Tag Archives: heifers

Pregnancy Check – 2018

Pregnancy check and calf vaccinations for fall 2018 are recorded history.  October 25, 2018 held on to become a pretty nice day.  Veterinarian was hour and half late, but with the changes i’d made in the corral which made it more user friendly, we still managed to finish before dark.  The changes shaved at least an hour off working time.

Results of preg check were far more favorable than i could have ever expected given the very hot, dry, droughty, short grass conditions.

135 cows and heifers were checked.

  • Open/Bred
  • 2/39 of the 2 year olds – 95% bred
  • 3/19 of the 3 years olds – 84% bred
  • 2/15 of the 4 year olds – 87% bred *
  • 0/1 of the 5 year olds – 100% bred
  • 0/6 of the 6 year olds – 100% bred
  • 0/20 of the 7 year olds – 100% bred
  • 1/21 of the 8 year olds – 95% bred
  • 2/8 of the 9 year olds – 75% bred
  • 0/1 of the 10 year olds – 100% bred
  • 0/1 of the 11 year olds – 100% bred
  • 0/1 of the 12 year olds – 100% bred
  • 0/3 of the 13 year olds – 100% bred

Totals – 10/135  = 7.4% open or 92.8% bred

THRILLED with this result even had there not been a drought and i hadn’t changed the breeding season.

Since i was going to Kenya this summer and because i cannot be out past the 15th of August to move the bulls away from the cows (because of severe ragweed allergy), i changed the breeding season from 17 July to 7 July and lopped off 12 days on the end.  In other words, last year breeding season was 17 july – 20 September, but this year is 6 July – 19 August.  Breeding season went from 65 days to 45 days.

According to gestation tables, this puts the first calves arriving April 14th and the last ones on May 28.  I do not like to start calving so early, but since the Corriente cows give such rich milk and combine with heat, humidity, and toxic endophyte fescue of late spring, it was a disaster the two years i calved them out in the mid-May to end of June time frame. (30% calf death loss due to scours despite major treatment).  Add in my allergies, i made the decision for my present season.  We can get some super nasty weather, however, in April, so time will tell.

Measuring for improvement

Cheers

tauna

*(these two young cows raised the biggest calves – not sustainable for my operation)

 

 

 

Compare 2-Year-Olds to 3-Year-Olds

Conventional wisdom from cattle management experts as well as those in the Ag University system insists that to properly develop future cows for a profitable cow herd young females (replacement heifers) need to calve by the time they are 2 years old.  The main idea is to identify those females which are the most fertile and to select for early maturation.  But is that really the way to do so?  And is early maturity a desirable trait?  Consider that most producers (in cattle) are expecting those young females to give birth by what is a comparable human age of 14, gestate, and raise a baby every year thereafter.  Whereas, the 3 year old compares to 18.  Animal Age Calculator

There is also the ‘belief’ (because i’ve never seen any data to support this) that a cow calving as a 2 year old raises one more calf in her lifetime than the older heifers.  I cannot speak to this with my own data since i’ve not been at it long enough to gather data, but i also don’t plan to do the research and have another herd that calves as 2 year olds.  However, I’ve spoken with a few producers who have been doing this for a long time and they are just as convinced that allowing their heifers to be physically mature before calving them allows them to live longer and more productive lives.

My heifers are not exposed to a bull until they are at least 2 years old – actually most are born in May of a year and not exposed until mid-July two years later, so they are actually 2 years and 2 months old and they will calve when they are right at 3 years old the following May.

Outside the obvious lifestyle benefits for producer/rancher and the comfort and animal welfare of the livestock, I’ve put together some financial figures which will apply to my ranch and indicate to me that I’ve made the right decision for my operation.

Heifer Development Costs
2 year old 3 year old
Value of Weaned Calf  $    630.00 450 lbs  $      1.40
Value of 2 year old  $    810.00 600 lbs  $      1.35
Hay
Pasture Year 1  $    125.00  $    125.00
Pasture Year 2  $    125.00
Salt/Mineral  $        3.00  $         6.00
Breeding Fees
Veterinarian Fees  $        5.00  $         5.00
Supplies
Labor
Interest
Insurance
Taxes
Depreciation
Machinery
Bulls  $      40.00  $      40.00  per head
Costs  $    153.00  $    281.00
Total Cost  $    803.00  $ 1,111.00
Conception Rate 70% 96%
$1147.14  $ 1157.29
*PPI 70 50 days
Calving Assistance 18% 0%
2nd calf conception 70% 96%
Advantages:
Manage growing, breeding, gestating, calving heifers as one mob with cows
Older Heifers are physically and mentally mature with no special feed requirements
Observing older cows calving seems to teach the heifers what to do
Less than 1 % calf death loss
Calves at least 50 lbs heavier at weaning and can be weaned with the cows’ calves
No special treatment

*PPI – post partum interval – the number of days it takes for the female to recover from calving and becoming pregnant again.

The calving assistance and pregnancy rates are taken from various University research data over decades of record keeping.  Most research heifers are developed with considerable grain and feed inputs which incurs more costs including labor.  However, my comparisons are grass and forage only.  Therefore it is likely that the grass managed 2 year olds could be significantly higher open (not bred) percentages than what is illustrated here.  Whereas the 3 year old development percentages are actual from my ranch.  My grass managed 2 year olds were only 10% bred!  Ouch!

WOTB – Working on the Business – tweaking the plan to discover a bit more opportunity for profitability in ranching.  Margins are too thin for my hobby level of ranching, but trying to do my best.

Cheers!

tauna

Winter Sunset

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I’ve removed all the old gates and panels from the old corral my grandpa used for decades.  Dallas and Brett had the tractor up at my farm, so we took advantage of that by pulling up the old hedge posts and clearing this whole area.  I still have a huge wood pile of posts, etc to burn.  This place is known as the Bowyer Farm and is where my grandparents ‘went to housekeeping.’  Sometimes, i struggle with taking out and changing the old stuff, but barns, facilities, houses, become not only an eyesore, but dangerous.  The memories are only mine now – all others who would have sentimental thoughts are passed away.