2019. Effect of Addition of Different Levels of Commercial Baker’s Yeast to Concentrate Diet of Multiparous Mid-Lactation Holstein Friesian Cows on Rumen Fermentation Characteristics. مجلة جامعة بابل - للعلوم الصرفه والتطبيقية. 27, 1 (2019), 313–324. DOI:https://doi.org/10.29196/jubpas.v27i1.2166.