pigs will eat hay silage haylage and straw but what protein will they derive from it they still have to fed protein in the form of compound feed or grain and soya
Pigs need a variety of grains including hay and straw. I feed a variety and include straw in my mixes at every feed, The only ones I dont give straw to in feed is my weaners and my creep. I find that the back fat on the finishers is vastly less by doing this. Hay has more protein in than straw, pea hay is high along with wheaten hay, oaten hay has less protein in it and takes longer to fatten an animal. But no matter what you feed the protein level must suit that animal. You can use brewery waste, water damaged grain from the bins, dust from the grain but it needs to be mixed in your mill, with your limestone, minerals, tallow, soya meal, canola meal, fish meal, etc. It depends on what you are allowed to feed and wha tis availabe to you in that country. We have Wheat, Lupins, Barley, oats, Rye, Cotton meal, Faba Beans, Chick Peas, Peas, Canola, Then we have all the hays and straws. some of the others I have mentioned above are locally produced or imported. We dont use corn cause we dont grow it here, it is imported.