Animal Husbandry

Commercial Poultry Nutrition: 3rd Edition by S. Leeson, J. D. Summers

By S. Leeson, J. D. Summers

Protecting a number of crucial subject matters on the subject of advertisement fowl food and production—including feeding platforms and bird diets—this whole reference is ideal for execs within the poultry-feed industries, veterinarians, nutritionists, and farm managers. particular and obtainable, the consultant analyzes advertisement bird construction at a world point and descriptions the significance it holds for conserving crucial meals provides. With element reviews and nutrition formulations, the study's compressive types for feeding courses aim quite a lot of commercially well known bird, together with laying hens, broiler chickens, turkeys, geese, ducks, and video game birds, between others.

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Hexane must be removed from the meal because it is a highly combustible material and a potent carcinogen. Problems occurring during processing that result in residual hexane in the meal are usually noticed by severe and sudden liver failure in birds. Soybean meals tend to be very dusty, and in mash diets, soy is responsible for some of the dust found in controlled environment poultry houses. Soybean meal is also notorious for its poor flow characteristics and for bridging in storage bins. 5 kg/tonne, can greatly improve the flow characteristics of soybean meal.

Levels of up to 8% canola meal can be used in laying diets without any adverse effects on performance although egg size may be reduced by up to 1 g. Energy content is the factor that usually limits inclusion level. Levels of toxic goitrogens should be assayed periodically, together with tannins. Canola meal should not be fed to brown egg layers. Nutrient Profile: (%) Dry Matter Crude Protein Metabolizable Energy: (kcal/kg) (MJ/kg) Calcium Av. 1 Description of ingredients 39 40 CHAPTER 2 INGREDIENT EVALUATION AND DIET FORMULATION Formulation Constraints: Bird age Min.

There are several reports which suggest that increased leg problems resulting from feeding canola may be due to its having a different mineral balance than does soybean meal. The addition of dietary K, Na and in some cases Cl have, under certain conditions, altered bird performance. Canola is also high in phytic acid and so there is speculation that the high level of this compound may be sequestering zinc and this affects bone development. The smaller egg size reported with canola meal diets seems to be a direct result of lower feed intake.

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