FREQUENT ASKED QUESTIONS (FAQ) Q: Why should you use Express? lactation? Q: What is a proven bull? What is progeny testing? What does it take to progeny test or prove a  bull? Q: Once I use a proven sire and get genetically superior heifers, do they retain this quality or do they lose it? Q: When should I breed my heifers? Is age an important factor? Q: What is corrective mating? Q: What is a breeding goal? How do I go about setting some? Q: What major factors determine the rate of progress/improvement that I can make in my herd by using Artificial Insemination? Q: What factors determine the overall performance (efficiency) of A.I.? Does a farmer have a role to play or is it the job of the A.I. Technician? Q: What factors do I, as a farmer, have to take in consideration when deciding to keep or not to  keep my own bull for breeding my cows? Q: Mating (breeding) of close relatives (e.g. Sire/Daughter or Son/Dam) is not acceptable in human beings. Is this true also in cattle or animal breeding? Q: What are the causes of silent heat? Q: What is the effect of level of feeding before breeding on conception rate? Q: What is the effect of low feeding during pregnancy on the performance of the heifer? Q: Effects of overfeeding animals Q: What makes a cow abort after it has conceived? Q: Effects of nutrient deficiencies on reproduction Q:Effects of diseases on conception rate. Q: How will does one confirm conception? Q: What determines the price of bull semen given that high milk bulls sometimes are cheaper than low milk bulls?  Q: Will the calf survive when it is born out of imported semen? How does such cow adapt to the local  environment? Q:When is it advisable to inseminate a cow? Next