In the first mating the f 1 progeny will get 50 per cent of genes from the purebred sire.
Cattle gutter used for mating.
A tra ditional straightline breeding pro gram is called purebreeding.
The same is true of embryo transfer only the effect is multiplied.
It is widely used in dairy cattle but is used much less in beef cattle because of handling and labor costs.
There are two methods of cattle breeding.
A 1 in the case of cattle horses or other livestock acquired by the taxpayer after december 31 1969 section 1231 applies to the sale exchange or involuntary conversion of such cattle horses or other livestock regardless of age held by the taxpayer for draft breeding dairy or sporting purposes and held by him.
Breeding beef cattle is relatively easy as compared to breeding dairy cattle.
Because breeding beef cattle is all about getting cows bred for producing calves to sale either for replacements or beef.
And cloning when it involves large scale embryo transfer fits the same pattern.
And you don t have to think much about many things such as genetic improvement increasing milk production etc.
Mating systems have to do with finding the right genetics but this must be done in the context of the environment into which the cattle are going to be placed.
Pregnancies from mis mating and abortion in feedlot heifers.
Cloning could allow breeders to select those cattle that can produce high quality meat or milk and thrive in extreme climates and use them to breed more cattle to be used for food production.
I for 24 months or more from the date of acquisition in the case.
If it is a female on sexual maturity it will be mated to another purebred sire of the same breed.
For most commercial operations the inconvenience of concentrating cattle heat detecting and breeding artificially outweigh at least in the minds of commercial producers the advantages of ai.
Mature cattle having more than 3 years of age should be used for breeding.
Natural breeding and artificial insemination.
Straightline breeding opera tions utilize only one breed.
The ani mals are called purebreds.
In this type of livestock system sires of a pure breed are successively used to mate nondescript females and their progeny generation after generation.
Ai offers a selection of bulls with known genetic potential such as measured by estimated breeding values ebvs for traits such as ease of calving or growth rates.
Some common methods of breeding of cattle buffaloes sheep goats pigs horses donkeys mules camels etc.
Unwanted pregnancies can be safely and efficiently terminated from one week after mating until about 4 1 2 months of gestation.
Ai has been commercially available for 60 yr.
