Can a blood type be found in sperm?
No. Sperm is a haploid cell found in the male reproductive organism, like for example to that of humans. The human sperm which contains 23 chromosomes can combine with the 23 chromosomes of the egg cell of a female in order to form diploid cells that can eventually form into a zygote.
Blood type on the other hand is a hereditary trait that can be acquired from the combinations of phenotypes and genotypes of the parents. Blood types can be determined if the blood types of the parents are known.
We cannot determine the blood type of the offspring just by getting the sperm of the samples.