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i dont no The are many breeds of sheep developed primarily for meat production. Nearly every country has their own landrace breeds for this purpose. In the USA we often use crossbred animals for meat production due to heterosis.( Pork is also often produced from hybrids.) If you are looking for a pure breed for meat production the Tunis is tasty and efficient.
Cattle such as Guenseys are specially bred for milk production. The offspring of a Guensey bull and a Guensey cow will be a Guensey calf. So, yes, the adaptation for high milk production is hereditary. Some other cattle breeds are not good milk producers, but are adapted for beef production.
the ammount of daily milk prodction from diffrent breeds
Yes, you can access the Brahma and Java breeds of chicken in the United States. These breeds are known for their high egg production and their large size.
Holstein Friesian cattle
Generally egg producers do not paint their eggs white. Some breeds of chicken will produce whiter eggs than other chickens.
Those Continentals are the best at this type of ratio. Breeds like Charolais, Maine Anjou, Limousin and Gelbvieh have efficient feed:weight ratios, often better than British breeds like Hereford or Angus.
They are dairy breeds, cattle that are used for the purpose of milk production as opposed to beef production.
The most selling breeds are Landlance and Large white. These breeds can be provided by Pig Production and Marketing Uganda (www.pigfarmers.co.ug). This site provides the prices.
A dairy cow. Holsteins are the largest milk producers of all dairy breeds.
Dr. Thomas Lecky did his work primarily in his home country of Jamaica. Much of his work, which was developing several breeds specially adapted to the environmental and production demands of the cattle producers of Jamaica, was--and still is--a big success in incorporating better agricultural practices than what Jamaica initially had.
Any production breed - Cornish cross, production RIR, sexlink, etc - will mature faster than other breeds.