This study was conducted to compare carcass characteristics and physico-chemical meat quality in two different genotype ducks raised under identical feeding and rearing conditions. A total of ninety 1-d-old Korean native ducks (KND, n = 45) and commercial meat-type ducks (Grimaud, n = 45) were fed same experimental diets during 56 d and 42 d, respectively to obtain similar slaughter weights. Th...

A series of assays were conducted to determine to the available energy of several meat and bone meal products by various methods. The correct determination of the energy available to poultry from these products is important for accurate diet formulation and product usage. Several methods for determining energy availability are utilized, including true metabolizable energy (TME) and excreta and ...

Sorghum grain is an important ingredient in poultry diets. The TMEn content of sorghum grain is a measure of its quality. As for the other feed ingredients, the biological procedure used to determine the TMEn value of sorghum grain is costly and time consuming. Therefore, it is necessary to find an alternative method to accurately estimate the TMEn content. In this study, 2 methods of regressio...

The available energy of several poultry by-product meal products were determined by various experimental methods. It is imperative to determine the accurate available energy value for these products for proper diet formulation and product usage. Leghorn roosters and turkeys were tube fed the products for the assay based on the True Metabolizable Energy (TME) system. Three week old battery reare...

Seven duplicate floor pens with 25 day-old commercial chicks were fed a practical type of broiler diet based on maize-palm kernel meal supplemented with varying levels ofniacin so that the rations had 15.0, 22.5, 30.0, 37.5, 45.0, 52.5 and 60.0mg of niacin per kg offeed. The treatments were maintained for a period of 42 days. The results based on liveweight gain, feed intake, apparent utilisati...