In a recent National Review piece entitled, "Pro-Life, Pro-Animal," the political speechwriter and former assistant to George W. Bush eloquently and thoroughly makes the case for why any God-fearing conservative should care about the welfare of animals, and suggests that if ever there was a natural affinity between two political causes, it is found in the undeniable connection between the pro-life movement and the animal welfare movement.
His article is long; very long. But it's also so good that attempting to capture its essence with a mere excerpt could never do it justice. You can read the piece in its entirety here, and I encourage you to do so.
The one exception I take with Scully's position is that the consumption of meat is altogether inconsistent with the Christian belief in the sanctity of life and dignity of Creation (he is a vegan). I think there is a space for responsible and human animal husbandry that both honors the God-given nature of the animals involved while taking care to mitigate any pain, fear, or suffering when the time comes for slaughter. Thankfully, more and more consumers are seeking out meat, eggs, and dairy certified "humane," and I hope this trend continues. This is actually an example of how the free market can work for positive societal change in a way that no government mandate ever could. If the people demand it, the market will respond, and as demand grows, competition will increase and prices will drop.
Hopefully Mr. Scully's writings will have broad impact and get more conservatives in the "values voter" camp to consider our God-given obligation to care for ALL creatures, great and small.