Effects of Low Phytic Acid Corn, Low Phytic Acid Soybean Meal and Phytase on Nutrient Excretion and Nutrient Digestibility in Pigs
نویسنده
چکیده
Environmental concerns associated with animal agriculture are of the utmost interest to producers and regulators alike. In December 2002 the United States Environmental Protection Agency is scheduled to release new regulations that will attempt to guide manure management practices for all production levels of animal agriculture. A proposed component of the new regulations is to require a comprehensive nutrient management plan to establish a nutrient balance on each animal production unit. Within the past thirty years our animal producers have changed from small, diversified farms to larger, more concentrated operations, with a greater mass of nutrient outputs located at one site. In addition to this, the use of commercial fertilizer has steadily increased while manure has gained the perception as a “waste problem” instead of beneficial soil fertilizer and constituent. Thus, it becomes increasingly important to maximize nutrient uptake by the animal in an effort to reduce total nutrient output to the environment and in establishing a whole farm nutrient balance.
منابع مشابه
Effects of low-phytic acid corn, low-phytic acid soybean meal, and phytase on nutrient digestibility and excretion in growing pigs.
Forty-eight grower pigs were used to evaluate the effects of feeding low phytic acid (LPA) corn, LPA soybean meal, normal corn (NC), normal soybean meal (NSBM), and phytase on nutrient digestibility and excretion. Barrows were blocked by BW (initial BW=45.3+/-1.6 kg) and randomly assigned to 1 of 8 dietary treatments in a 2 x 2 x 2 factorial arrangement (6 pigs/treatment). Pigs were fed twice d...
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