Variation in Composition of By-Product Feeds
نویسندگان
چکیده
منابع مشابه
Within Farm Variation in Nutrient Composition of Feeds
Estimates of the amount of variation (i.e., standard deviations and ranges) in nutrient composition of common feeds are readily available from some national feed testing labs; however, estimates of variation on feeds within a farm are needed to determine appropriate feed sampling and ration re-formulation schedules. We conducted a large national survey to determine within farm variation for som...
متن کاملRuminant Nutrition: Beef: By-Product Feeds
During the winters of 2008 and 2009, a study was conducted at the Texas AgriLife Research facilities in Bushland, Texas, to evaluate dried distillers grains as a supplement to wheat pasture. Each yr, 60 preconditioned Hereford steers (initial BW = 198 kg ± 3) were revaccinated against viral and Clostridial pathogens and implanted with 36 mg of zeranol. Steers were stratified by BW and randomly ...
متن کاملMetabolizable Energy and Chemical Composition of Poultry by-Product Meal
This study was conducted to determine the chemical composition and metabolizable energy of poultry by-product meal (PBPM) from two slaughterhouses in Iran. Samples were analyzed for dry matter, crude protein, ash, ether extract and gross energy. The amounts of calcium, phosphorus, sodium, potassium, Magnesium, Iron, Manganese, copper and Zinc were determined. The apparent metabolizable energy (...
متن کاملsuppression of coke formation in thermal cracking by coke inhibitors
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
15 صفحه اولRandomness Rules: Living with Variation in the Nutrient Composition of Concentrate Feeds
A fundamental rule regarding diet formulation is that you will never know the true value of anything. Although we have reasonably accurate estimates of the average requirements for most nutrients, we have less certainty regarding nutrient requirements of a specific herd or animal under specific circumstances. We have equations that accurately estimate the average dry matter intake for groups of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1989
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(89)79366-8