View Full Document. ï¬ 1  Primers determine the specificity of the PCR reaction. ï¬ The distance between the primer binding sites will determine the size of the PCR product. 2  T m ï¬ For short (14â20 bp) oligomers: ï¬ T m = 4Â° (GC) + 2Â° (AT)
Estrus, or heat, is the period in which the doe will stand and allow the buck to breed her. This phase of the reproductive cycle may last between 12 to 36 hours. The period from one heat cycle to the next is referred to as the estrous cycle. In goats, the estrous cycle occurs every 18 to 24 days, or 21 days on average.
They hatch and the young worms crawl up grass stems. Sheep and goats get infected when they are grazing. The worms grow into adults in the gut. They feed on the blood of sheep and goats by attaching to the walls of the gut. Signs in live sheep and goats. Sheep and goats have occasional diarrhoea and show general ill health and malnutrition.