I made baby cows to match the Cuter Fatter Cows mod (permission given by original mod author). 

Either use SDVMM to install, or

OPTIONAL (but suggested just incase): Backup your BabyBrown Cow.xnb and BabyWhite Cow.xnb files located at Steam\steamapps\common\Stardew Valley\Content\Animals
2. Download and extract my mod files
3. Ignore the .png files - they are a preview for you. Put the new .xnb files where your old ones were (at the location above). Make sure to REPLACE the files or your game won't know what to use and won't start.
4. Done! Launch the game and enjoy adorably fat moo-moos~!


See Cuter Fatter Cows for the matching adult cows by Identitypollution here:
http://www.nexusmods.com/stardewvalley/mods/348/?tab=4&&navtag=http%3A%2F%2Fwww.nexusmods.com%2Fstardewvalley%2Fajax%2Fcomments%2F%3Fmod_id%3D348%26page%3D1%26sort%3DDESC%26pid%3D0%26thread_id%3D4050555&pUp=1