Jung Min Heo

INTRODUCTIONIn line with the tremendous progress that has been made in meat-type duck production, digestibility and balance experiments are necessary to fill the dearth of information on the nutrient digestibility of widely used feedstuffs. Digestibility experiments for the evaluation of nutrient disappearance along the gastrointestinal tract align with the need for precise feed formulation to mat ...

1 | INTRODUCTIONDue to the impact of climatic changes and other global events such as conflict, the Covid‐19 pandemic, recession, and supply chain issues, conventional feed ingredient prices are continually increasing. The effect of these constraints is felt largely in developing countries that are coming under huge pressure to source raw materials such as corn and soybean meal (Abro et al., ...

INTRODUCTIONDue to the price volatility of conventional feed ingredients, there is an ever-growing need to include relatively inexpensive alternatives such as fats in the diets. Such an approach might relatively reduce feed costs and simultaneously increase the energy density of the diets to meet the requirements of the modern fast-growing broilers. Fats are known to be a concentrated energy sourc ...

Dietary fat and oil are potential alternative energy sources for fast growing broiler chickens (Meng et al., 2004). Nevertheless, hampered fat digestion and absorption were reported in young broiler chickens with incompletely developed digestive tract (Al-Marzooqi and Leeson, 2000). Addition of emulsifier and lipases to a diet is one strategy to improve energy utilization and subsequent growth per ...

IntroductionMinerals make up a small but vital percentage of swine diets with profound impacts on animal health, growth performance, feed cost and the general environment. Calcium and phosphorus are the two most abundant minerals in the body, and they exist largely (about 98%) in the form of carbonated hydroxyapatite (Ca10(PO4)6(OH)2) in the skeleton (Mahamid et al., 2010). They are required ...

Dietary energy is vital in animal nutrition as it is a major cost component in animal diets. Dietary fat and oil contribute high levels of energy into the diet, and different fat types affect growth performance of fast growing broiler chickens (Meng et al., 2004). Furthermore, decreased fat digestion and absorption were reported in young broiler chickens (Al-Marzooqi and Leeson, 2000). Addition of ...