THE LONG & THE SHORT OF IT: With a team of bulls selectively bred to shorten gestation length, you can shorten your calving, increase days in milk, and give your cows longer to recover improving their chances of getting back in calf.
What benefits will I get from using SGL semen?
Using SGL at the end of the mating period will help farmers achieve a more compact calving pattern and more days in milk. There are also the added benefits that come from having your cows calve earlier with more time to recover and cycle pre mating - such as an increased AB conception rate, and lower empty rates.
In a 350 cow herd with normal submission and conception rates, a farmer could stand to gain around $4,500 in extra income through more days in milk with the use of SGL in weeks 7-10 of mating (based on average of 1.5kgMS per animal and $5.30 pay out).
LIC’s fresh SGL Dairy product will deliver an average 10.5 days on-farm advantage.
How do I interpret the SGL breeding value (BV)?
The SGL BV is expressed in days. A negative number of days indicates a shorter gestation length than average. As with all BVs, on average, the bull passes half his BV to his offspring. So if the dairy bull’s gestation length BV is -10, his calves will be born, on average, five days earlier than would the calves of a dairy bull with a BV of 0. Depending on the SGL BV of the cow he is mated to, it could be even earlier than five days.
With a gestation length breeding value of -21, LIC’s fresh SGL Dairy product will deliver an average 10.5 days on-farm advantage.
Can I keep the progeny from SGL?
SGL bulls are bred specifically for their gestation length - their BW and TOP traits are not part of the selection criteria - and resulting calves should not be kept as herd replacements so it is recommended you run SGL mated animals in a separate mob. Alternatively consider LIC’s SGL Marker or Compact Calving options (see product table below).
Please note if you choose to keep the progeny of SGL animals you cannot breed from them nor can any person you may on sell them to. Neither female nor male progeny are to be used for reproductive purposes. See clause 62a in the LIC Product and Services catalogue for more detailed information.
What if a farmer wants to use SGL sires but keep the calves as replacements?
What markings can I expect to see from using the SGL Marker product?
How do beef bulls gestations compare with the dairy?
What frozen back up can a farmer expect their technician to have available when ordering the fresh SGL teams?
Some of the bulls being used in the SGL teams are yearlings. How reliable are they?
Will these SGL calves be born normal?
What product is right for me?
Prices and figures quoted are accurate at time of printing. Prices are per straw and exclusive of GST and any InvestaMate discount. Frozen prices exclude technician fee. Gestation Length BVs for Beef Breeds are within breed. Compact calving bull team includes genomic bulls and gestation length BVs and BWs are subject to change. Terms and conditions apply, please see your Farm Solutions Manager for full details.
For more information download our SGL flyer or speak with your local Farm Solutions Manager.