Presentation is loading. Please wait.

Presentation is loading. Please wait.

Mating MERINO EWE LAMBS Ben Duxson Glendemar Background  20 Years of pedigree data  MERINOSELECT, since inception  5 years EID system  Now, genomics.

Similar presentations


Presentation on theme: "Mating MERINO EWE LAMBS Ben Duxson Glendemar Background  20 Years of pedigree data  MERINOSELECT, since inception  5 years EID system  Now, genomics."— Presentation transcript:

1

2 Mating MERINO EWE LAMBS Ben Duxson Glendemar

3 Background  20 Years of pedigree data  MERINOSELECT, since inception  5 years EID system  Now, genomics  This year, TGRM matings  12 years of trial and error, in ewe lamb joining’s  Involved in several trials

4 Why bother?  Decrease the average age of the flock  More high value sales stock – lambs and breeding ewes  Early detection of ewes that are more fertile – sire, dam & progeny  Ramp up genetic gain

5 A tactical decision  Not for everyone  Don’t attempt to mate Merino ewe lambs if: – You are getting low % in adults – fix that first – Weaners are light (tough season) – You don’t have an economical way to feed them (lucerne, cheap grain etc)  But it is an opportunity to capitalise on good seasons and prices  Requires precision management

6 Keys to success  Like everything in sheep it comes down to 3 things: Feeding Breeding Management  Get these things right and it works  Cost effective and simple

7 Feeding for success  Get the simple things right: Manage all ewes to LTEM guidelines Manage lambs using HPW guidelines Weight is critical Above average for fat (Merino’s)

8 Feeding for success The heavier they are the better they go

9 Breeding for success  Must use responsive genetics Naturally reproductive High post-wean weight ASBVs High fat & high muscle Moderate fleece weight Low wrinkle

10 Breeding for success

11 YFAT = +1mm YFAT = -1mm

12 WEIGHTYWTYFATYEMD TWINS SINGLES LOST EMPTY Source, Glendemar Data 2011, 935 ewes Breeding for success

13 Following Year Lambed at 14 months Didn’t Lamb SINGLES58%56% TWINS31%35% DRY11%8% Source: Glendemar Data 2012 Scanning Manage for success

14  Wean lambs early  Have flexible management systems  Find simple & cost effective systems  Combine breeding & feeding

15 Things we are still investigating  Which sires/dams do it consistently  What happens for the rest of the ewes life?  What is the production of lambs born from lambs?  Changes in weight while mating  Economic cost/benefit

16


Download ppt "Mating MERINO EWE LAMBS Ben Duxson Glendemar Background  20 Years of pedigree data  MERINOSELECT, since inception  5 years EID system  Now, genomics."

Similar presentations


Ads by Google