Key 6 (1)

Name V‘E\* Animal Science 320 Fall 2022 Problem Set #6 50 points Fixed Ingredient Formulations You have been formulating diets to date using 2 ingredients. Most diets include more than 2 ingredients, In some cases, we might be adding ingredients that do not contribute the nutrient of interest (the nutrient we are formulating toward — our target) and is some cases, they do. For example, if I have formulated to protein and we need to leave space for 5% for a vitamin premix, the premix is not providing any protein and we simply need to “hold space” for the 5%. g 4’ 1. Watch the tutorial labeled: Fixed Ingredient Formulation 1 (for either Pearson Square or Algebra) (4 and solve the following using either method (Algebra or Pearson Squarc). This problem will be worked in lab. Formulate a diet to 15% crude protein using corn (8% CP) and SBM (45% CP) and saving 8% space for ingredients that need to be included but do not contain any protein (such as a vitamin/mineral premix). Therefore, our fixed ingredients are 10% and unfixed ingredients (com + SBM) are 92% of the diet to I total 100% of ingredients. F4+C4%z=100 Ca5: ‘5 Fived = 8% urfixed = Q2% Cro=92 N1s/.92 = Ib.> €=93-5 2y ¢ @”"’“"“'* (az-s).c8) ¥ 5(45)= 1S _ o5 l3-8=_8.% 1.3 -,085+ M55 = \S >F s =2y | 283%/3% x Q2= 21.4% coen $=20.L % BM " 83/3% x.92 : *D.(% SPM C=7.4% Corn 8% fixed Fixed = 8% 5 p*\ . 2. Formulate a diet to 15% starch using oats (45% starch) and soybean meal (6% starch) while saving 15% space in the diet for fat and vitamin/mineral premixes that do not contain any starch. e Gied = 15% Lnfixed = BS% 5x 0y 57 00 %/, 5% 13.lo 0415 =85 1. 18%/,85< 14. ©0=89 -9 2_‘4'5 m M-le=IlLL & | 45 - 3.7 274 Oy S B | ; i (ee-spu) s sl S 9 3_%\,ulsfl)x 85 = 253% eald “-15"f5§;5'°“15_'2,,31 27.4/#)x . 85 =59.1% SBM 425q.3% “BM 157 fxed 0a35= 35 29, | e

14 3. Formulate a grain supplement that contains 14% crude protein. Assume the diet contains | g, ®y premix-thateentains-5%protem. You will use a combination of oats (9% crude protein) ang myb; meal (45% crude protein) to formulate the diet. X 10% fixed qo% 0% 045 = 100 : 0+5 =90 1. 14/.90: 6.6 2 9 mqs-/s.b: 294 0 =90-5 4!l =="K.p-9q = /;‘)14 i G4 T 4 us) =14 3.29.4/36 x 907 74% (735 (a0 %XMZ: ‘\’(%2_“ - o 8.l - 045« , 2 b.lte /36 x.90 = (/@,% s6m ek 4. BEEF S= o4, 0=73.l0% lo ?& ‘An 800 Lb medium frame finishing heifer is consuming 25 Lb As-Fed a diet with the following characteristics (Abbreviations: DMI = dry matter intake): * 85% DM ® 0.0 Meal per pound NEm (DM basis) ® 0.70 Mcal per pound NEg (DM basis) [ e Body Weight, Lb 600 700 800 a5 N NEm Requirement (Mcal/day) % 5.16 5.80 6.41 Expected Daily NEg Requirement (Mcal/day) gain, Lb 1.0 1.90 213 235 2.0 4.12 4.63 5.11 2.4 5.05 5.67 6.27 28 6.00 7.74 745 3.0 6.49 7.39 8.11 32 6.97 7.83 8.65 34 7.46 8.38 9.89

5. COMPANION Determination of Energy Requirements — How much to feed Table 1. Information to u se to calculate requirements Dog Current Weight (Kg) | Estimated Adult Weight | Activity level 3 (Kg) Adult 220 220 Normal pe? Puppy - 16 weeks 14.0 23.0 Highly active Cat Current Weight (Kg) | Estimated Adult Weight | Activity level (Kg Adult 45 45 Normal pet Kitten - 12 weeks 12 4.5 Highly active Metabolic Body Weight (MBW) and Restin: are used to estimate energy needs of dogs a energy requirement are bel * Metabolic body weight (MBWJZBWk * Estim: low: ated energy requirement: factor x RER g Energy Requirements (RER) (Kleiber RER Methodology) nd cats. Equations for MBW, RER, and estimated daily 2078 (dogs/puppies) and-BWieg-L5(entsrkitrens) © Resting Energy Requirement for both species: (RER) =70 x MBW Dogs: Adult dogs at maintenance factor range: 1.0 1.8 x RER o L1to 1.2 works well for most adult dogs at maintenance, o Cats: © 1.0— 1.2 works well for most adult cats at maintenance; o Calculate MBW, RER and Estimated Keal requirement per Puppy up to 16 weeks: 3 x RER Kitten up to 16 weeks; 2.5 x RER | Table 1 and again for the Cat and Kitten described in Table 1. Use 1.2, Use Ll day for the dog and puppy described in Dog MBW, Kg RER, Keal/day Estimated Kcal Requirement, 1 Kcal/day Adult /0.3 xTp = Y xla= BSF Puppy 2.8 y0: S64 xB = /578 Cat MBW, Kg RER, Keal/day Estimated Keal Requirement, Keal/day Adult 3] Xx70= QIF XI] = 239 Kitten L] X0z 37 x38 = 195 3

OMPA you tool ON ANIMA_I.‘S: Product Selection based on adjusted requirements nimal nutrition courses at ISU so I ask you to tell me which puppy food is best for my ppy based on 2 foods 1 found at Theisens. Use the 16 week old puppy from Exercise 1. o The N‘R(' provides the requirements for puppies based on 1,000 Kcal. Adjust requirement to the specific amounts for this individual puppy using the column labeled “amt per 1000 kcal ME” using the equation below. These are the amounts of each nutrient this particular puppy needs based on its energy requirement. 15/ Amount per 1000 K E x puppy’s ME requirement 1000 Kcal/ME Table 1. Nutrient Requirements of Growing Puppies, NRC 2006 Nutrient Amt per 4000 Kcal ME Amt per 1000 Keal ME | Adjusted requirement for the puppy Protein, g 175 38 2 15/ fops = o R Fat, g 85 213 32.3 Calcium, g 12 3 o5 Phosphorus, g 10 25 2.9 Table 2. This table includes the label information of the 2 different commercial puppy foods. Calculate the cost er Kg and add to the last row. Ttem/Dict Puppy Food 1 Puppy Food 2 Moisture, % 12 1 Protein, % 30 28 Fat, % 20 15 Ca, % 1.0 14 P, % 08 0.9 Kcal ME/Kg 3,926 3,520 Kcal ME/cup 384 366 Price per bag, S 15.60 62.00 Bag size, Kg 32 145 Price per Kg, $ 5.69/3.2 = 488 <. QB