ANSC 3010 ALL QUIZZES QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026

ANSC 3010 ALL QUIZZES QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 which part of the chicken's GI tract functions as the true stomach and produces HCL - Answers Proventriculus Which of the following is not considered to be a macromineral? a. iodine b. potassium c. calcium d. phosphorus - Answers a. iodine T/F Energy is one of the classes of nutrients - Answers False What part of the ruminant stomach functions as the true stomach and produces HCl? - Answers abomasum Which fat soluble vitamin is synthesized in the rumen? - Answers Vitamin K Which of the following is an advantage of ruminants? a. Synthesize microbial protein from non protein nitrogen b. Convert high quality protein to microbial protein c. Heat production during fermentation d. all of these are correct Feedback - Answers A. synthesize microbial protein from non protein nitrogen If a specific amino acid required to synthesize a protein is not available, the protein cannot be synthesized. This is referred to as the ________________ amino acid. - Answers limiting Two essential fatty acids required by animals are: - Answers linoleic and linolenic acid The two polysaccharides found in plants in the highest concentrations are: - Answers starch and cellulose Which of the following is not a volatile fatty acid that can provide energy to ruminants? a. propionic acid b. lactic acid c. acetic acid d. butyric acid - Answers B. lactic acid Which of the following is NOT a component of the Proximate Analysis? a. crude fiber b. acid detergent fiber c. crude protein d. ether extract - Answers B. acid detergent fiber ______ is estimated by a procedure called the Kjeldahl method. - Answers crude protein A feedstuff contains 2% Nitrogen. What is its percent crude protein? - Answers 12.50% Inorganic minerals are estimated by the __??___ value, which is determined by burning a feed sample at a temperature of 350°C to 600°C until nothing is left but metallic oxides or contaminants such as rocks and soil - Answers ash %_______ = 100 - %(water+CP+EE+ash+CF) - Answers NFE __?____ = sum of digestible energy yielding constituents - Answers TDN These methods are becoming more common and are replacing the CF procedure because they more accurately define the carbohydrate components associated with plant materials. - Answers NDF and ADF The ____?___ content of a feed is obtained by using an Oxygen Bomb Calorimeter. - Answers energy Dr. Williams decides to see if Chic Fil-A chicken nuggets in dairy cow diets will improve milk production. What type of assessment method is she using if she is measuring nugget intake and pounds of milk produced? - Answers feeding trial Which of the following is used as a marker in animal nutrition trials to aid in determining digestibility? a. chromic oxide b. cobalt c. all of these can be used as markers d. Ytterbium Feedback - Answers C. all of these can be used as markers _____ is the most important protein supplement for livestock feeding in US (and many other countries). - Answers soybean meal ___ is a protein feed derived from slaughterhouse waste, is high in collagen, and is of concern because of "mad cow" disease. - Answers meat meal ______ is an Anti-nutritive factor contained in raw soybeans, and therefore they must be heated to destroy this - Answers trypsin inhibitor Cottonseed meal contains a toxin that remains in the meal after oil extraction. What is this toxin? - Answers gossypol ______ is the first limiting amino acid in grain legumes. - Answers methionine Which of the following is a source of rumen undegradable protein that can be used in ruminant diets? a. canola meal b. fish meal c. soybean meal d. cottonseed meal - Answers B. fish meal Phytic acid is a compound found in soybeans that interferes with the absorption of which 2 minerals? - Answers phosphorus and zinc What is the most common source of non-protein nitrogen for ruminants? - Answers urea Some protein sources can be treated to make them less degradable in the rumen. Which of the following is a method of protecting feed proteins from excessive rumen degradation? a. coating with fat b. All of these can protect the feed protein from excessive rumen degradation c. heat treatment d. treatment with tannins - Answers B. all of these can protect protein from excessive rumen degradation T/F Microbial crude protein meets 100% of the tissue amino acid requirements for milk production in high producing dairy cows, so no RUP (rumen undegradable protein) is needed in their diets. - Answers False ________ is known as the "queen of the forages". - Answers alfalfa A type of grazing management system in which pastures are divided into smaller paddocks and animals are only allowed access to one paddock at a time - Answers rotational grazing Major pasture legume in North America, Europe, New Zealand, parts of Australia and South America; quite resistant to grazing pressure. - Answers white clover Cool season grass grown extensively throughout Louisiana as forage crop and is widely used for beef and dairy cattle. - Answers ryegrass Warm season grass and is the most extensively produced hay crop in the South - Answers Bermuda grass Forage that has been stored at 15% moisture or less - Answers hay Forage preserved by anaerobic fermentation in a silo. - Answers silage Cool season grass often infected with endophyte fungus that produces ergot alkaloids. May cause problems in cattle. - Answers fescue Magnesium deficiency associated with grazing management - Answers grass tetany Type of grazing management system in which a pasture is stocked with animals at all times. - Answers continuous grazing As a grass or legume matures,___________ content increases, reducing digestibility (the answer is a component of the plant cell wall). Feedback - Answers lignin ___________ is a condition that can be caused by feeding alfalfa or clover because of the rapidly fermentable carbohydrates and soluble proteins that can form stable foams. - Answers bloat T/F Least cost diet formulation always ensures the highest quality ingredients for livestock. - Answers False Fine grinding of grain in swine diets can result in - Answers stomach ulcers Which of the following grains would be best for use in pellets? a. rice b. wheat c. corn d. milo - Answers B. wheat Reaction between free amino group of side chain of lysine with a reducing sugar and forms brown, undigestible polymers. This reaction may reduce protein and amino acid bioavailability - Answers maillard A processing method in which ingredients are first ground and mixed, then cooked with moist heat to a high temperature. The resulting mash is then pushed through a die to shape it, and starch molecules explode into nugget shape. - Answers extrusion T/F Feed additives are nutrients that can be beneficial to the health and metabolism of animals. - Answers False Ionophores are commonly used feed additives in beef and dairy cattle diets. We discussed many benefits of ionophores! In the rumen, ionophores favor the production of which volatile fatty acid? - Answers propionic acid Ionophores decrease the production of which gas? - Answers methane Ionophores can prevent this disease, caused by protozoa, that affects calves? (DW did research with this!) - Answers coccidiosis One of the ionophores discussed in class is approved for calves and heifers, while another ionophore discussed in class is approved for lactating dairy cows as well as young cattle. Which ionophore is approved for both lactating and non-lactating dairy cattle? - Answers monensin (rumensin) Ionophores are antibiotics, but a VFD statement not necessary when using them in animal feed. - Answers true Paylean and Optaflexx are beta adrenergic agonists that are legal for finishing swine and beef cattle, respectively. What is the actual repartitioning agent in these products? - Answers ractopamine Zilmax is also a beta agonist used in beef cattle. It was a topic of controversy a few years ago, and Tyson and Cargill would not accept cattle that were fed Zilmax. What is the repartitioning agent in Zilmax? - Answers zilpaterol hydrochloride What do the initials GRAS stand for? - Answers generally recognized as safe Repartitioning agents repartition nutrients from ______ to ________ synthesis - Answers fat to protein As a "rule of thumb", a feed additive should return a minimum of _______ dollars or more for each dollar invested. - Answers 2 A direct fed microbial that consists of a live culture of a fungi and the media on which it was grown and dried - Answers yeast culture Short polymers of fructose, mannose & galactose that may modify gut microbes and stimulate the intestinal immune system by keeping pathogenic bacteria from binding to intestinal mucosa - Answers prebiotics Which of the following is a pellet binder used in livestock feeds? - Answers bentonite The only hormone-like product permitted as feed additive in U.S is - Answers melengesterol acetate Polaxalene is added to feed to prevent - Answers bloat Feed addtives that may benefit the host animal by improving its gastrointestinal microbial balance and are often called a "Natural alternative to antibiotics" - Answers probiotics Which of the following is a commonly used buffer in dairy cattle diets? - Answers sodium bicarbonate Red and yellow carotenoid pigments used in the poultry industry as pigmentation agents for eggs, skin and shanks. - Answers xanthophyll Which of the following can be used to make egg yolks a nice dark yellow to orange color to increase consumer acceptance and possibly for pasta making in Italy? - Answers marigold petal meal On average, 60 to 70% of commercial poultry diets consists of which type of feedstuff? - Answers cereal grains Which mineral may be added in high concentrations to poultry diets to increase growth rates but may be toxic to ruminants? - Answers copper Fats are routinely added to poultry diets. To which type of poultry are minimal amounts of fat added to their diets? - Answers layers What is the most limiting amino acid for poultry fed corn/SBM diets? - Answers methionine