Effect of protein intake on nitrogen retention by swine during late pregnancy.
D000704:Analysis of Variance; D000818:Animals; D004044:Dietary Proteins / Q000378:metabolism*; D005260:Female; D009584:Nitrogen / Q000378:metabolism*; D011247:Pregnancy; D011506:Proteins / Q000378:metabolism*; D013552:Swine / Q000378:metabolism*
D004044:Dietary Proteins; D011506:Proteins; D009584:Nitrogen