Results | Costs

Maximising results

Successful outcomes are achieved through hard work, coordination and continual evaluation of results.

Results can be influenced by:

• Quality of semen
• Technician skill and experience
• Stress factor control
• Programme hygiene standards
• Accuracy of application at all stages
• Hind condition score
• Absence of weaning
• Feed management/ Hind management
• Breeding history of hinds
• Unknown handling facility

Understanding why results can vary:

Factors	Drug efficiency (%)	Herd Fertility (%)	Semen Fertility (%)	Technical efficiency (%)	Results (%)
Case	AX	BX	CX	DX	=
Ideal	95	90	90	100	77
All factors lowered	85	80	80	90	49
Split straws	95	90	45	100	38
AI Timing out & split straws	95	90	45	50	19
Stress	95	45	90	100	38

• It is important to realise that this is NOT an average
• The outcome will always be lower than the weakest factor
• Multiply four factors together in % to determine reproductive efficiency
• Base rules are the same for all forms of livestock reproduction

The four basic factors depend for their total efficiency on varying sub-factors within them.

Reproductive drug efficiency (in percent) is affected by:

• Use of correct synchrony programme
• Timing of each stage of synchrony
• Hygienic and correct application of cidrs
• Hygiene and correct application of hormones

Herd fertility (in percent) is affected by:

• Feed management
• Rest since fawning
• Hind health and stress status
• Time of the year

Semen fertility (in percent) is affected by:

• Competence of semen technologist
• Biological ability of stag
• Time of the year
• Evaluation scores of semen
• Packing rate of sperm cells per straw

Technician efficiency (in percent) is affected by:

• Competence and skill of technician
• Presentation of hind
• Passage through cervix
• Total hygiene efficiency
• Timing of insemination

Go to Costs »