Zhège pǐnzhǒng de mǔjī hěn duōchǎn, yì nián néng xià sānbǎi ge dàn.
Hens of this breed are very productive and can lay 300 eggs a year.
Tips
usage
Often in the superlative, 最多产的 + person, 'the most prolific': used for writers, composers, scientists and directors, and also for crops and animals that yield a lot.