Fertility and joining
Setting up the next generation. Joining success is built long before the bulls or rams go in. Conception rates, embryo survival and early foetal development all depend on one thing: the animal having the nutritional tools to reproduce efficiently.
Even small shortfalls in trace elements, amino acids or energy utilisation can show up as:
- Lower conception rates
- Longer conception times
- Light or uneven calves and lambs
- Poor rebreed performance
Supporting fertility isn’t about pushing animals harder, it’s about giving their metabolism what it needs at the right time.
Why nutrition drives fertility
Reproduction is one of the first systems to suffer when nutrients are limited.
Trace elements support
- Hormone production and cycling
- Egg and sperm quality
- Placental development
- Early embryo survival
- Immune protection around joining
Amino acids support
- Protein supply for ovarian and testicular function
- Colostrum and early lactation
- Muscle and frame maintenance in breeders
- Energy efficiency when intake dips
Electrolytes support
- Hydration in hot joining periods
- Nerve and muscle function
- Appetite and rumen stability
When these components are in balance, females hold condition better and males maintain working capacity through the joining period.
Common fertility red flags
Watch for these signs. They often appear before animals look obviously deficient.
- More returns than expected
- Joining stretching beyond target weeks
- Cows or ewes slipping condition at joining
- Lower scanning percentages
- Weak or slow newborns
- Poor colostrum and early growth
How LivestockIQ programs fit
A base program leading into joining, with targeted support through pressure points.
Ultranex
The fertility foundation. Used every 4 to 6 weeks leading into and through joining, ULTRANEX supports:
- Breeder condition and body score
- Reproductive hormone function
- Immune resilience during joining
- Consistent performance across green or dry feed
- Early foetal development
This steady background nutrition helps females cycle and conceive more reliably while supporting bull and ram stamina.
Meganex
For higher-demand systems. Where copper and zinc demand is greater, MEGANEX provides additional support for:
- Egg and sperm quality
- Placental development
- Hoof and skin integrity
- Immune strength during joining
- Growth of the developing foetus
Commonly chosen in higher production or known copper and zinc deficient areas.
StressGuard
Protecting fertility during pressure points. Short-term stress around joining can undo months of preparation. Use StressGuard for:
- Heat waves during joining
- Pre-joining handling or AI programs
- Transport before joining
StressGuard helps maintain hydration and energy utilisation when intake drops, reducing the risk of early embryo loss.
Program note: use StressGuard as a stand-alone support during high-stress windows, then return to ULTRANEX or MEGANEX for ongoing nutrition once the six-week StressGuard cycle is complete.
Practical joining strategies
Three windows to plan around.
6 to 8 weeks before joining
- Establish the ULTRANEX or MEGANEX program
- Build breeder body condition
- Support bull and ram preparation
During joining
- Maintain the 4 to 6 week cycle
- Monitor condition rather than just feed
After joining
- Continue the base program to support embryo survival
- Early foetal growth
- Colostrum development
What producers commonly see
Your LivestockIQ representative can help design a program based on season, cattle or sheep systems, known mineral challenges, and your joining dates.
Tighter joining periods
Improved scanning results
Stronger newborns at foot
Better breeder condition post-joining
More consistent rebreed performance
