Is the quality of the dam more important than the sire?
So the quality of the dam does have an influence on the quality of the offspring, although note that since heritability can range from 0 and 100%, this influence (14%) is rather low. How could the dam be contributing to the performance of her offspring in a way that the sire doesn’t?
Who is responsible for the number of offspring of a dam?
Sire and dam: who determines what? Many sheep and goat producers are quick to credit their ram or buck when they have a significant number of multiple births (twins and triplets) born. But, they are giving credit to the wrong animal. The dam determines the maximum number of offspring that can be born via her ovulation rate.
What happens if the dam only ovulates one egg?
The dam determines the maximum number of offspring that can be born via her ovulation rate. If she only ovulates one egg, there’s not much the male can do to turn that single ovulation into twins, although sometimes a fertilized embryo will split, resulting in the birth of identical twins.
How many alleles does a sire and a dam have?
After all, the sire and dam each contribute exactly half of the alleles on the autosomal chromosomes, which include all the chromosomes except the X and Y sex chromosomes. (For each gene on the autosomal chromosomes, there are two alleles – one that comes from the mother and one from the father.)
Do you use sire and dam in pedigrees?
For a dam, you can say that a horse is ‘out of’ or ‘from’. These terms are not used interchangeably between sire and dam and are used when talking about a horse’s breeding. Horse’s pedigrees are often written in the form of a chart. When looking at a horse’s pedigree, the sire’s line will be on top and the dam’s line will be on the bottom.
What’s the difference between a dam and a broodmare?
A dam is the mother of a horse. A term you will also hear dams called is broodmares. A broodmare is a female horse, also known as a mare, that is used in breeding. You can say that a horse is ‘by’ a sire. For a dam, you can say that a horse is ‘out of’ or ‘from’.
Is the chocolate or lilac gene present in both sire and dam?
The dilute gene must be present in both the sire and dam’s pedigree in order to produce a dilute offspring. The chocolate or lilac gene must be present in both the sire and dam’s pedigree in order to produce chocolate or lilac offspring.
What do you call a mare that is a dam?
A broodmare is a female horse, also known as a mare, that is used in breeding. You can say that a horse is ‘by’ a sire. For a dam, you can say that a horse is ‘out of’ or ‘from’.
