Their bull gendereth, and faileth not; their cow calveth, and casteth not her calf.
Their cattle (i:e., cows) conceive. The first clause of the verse describes an easy conception, the second a happy birch (Umbreit). I prefer the English version.
Related Commentaries of Job 21:10
Job 21:10
10 Their bull gendereth, and faileth not; their cow calveth, and casteth not her calf.