But still the goal in many cases is to increase natural reproduction.

但在许多情况下，目标仍然是增加自然繁殖。

Through the poo we can see how stress the animals are, what condition they are, their individual health; are they reproducing. The goal of the nearly 1.5 million dollar joint initiative is to develop a strategy to promote natural reproduction.

通过粪便我们可以看到动物的压力有多大，它们的状况如何，它们的个人健康， 它们繁殖情况。这项耗资近150万美元的联合行动的目标是制定一项促进动物自然繁殖的战略。