Feed Mixing and Storage

1. Feed Mixing and Storage

2. Factors that Influence Stored Feed • Moisture • Heat • Pests

3. Desired Moisture(when stored in aerobic conditions)

4. Safe Moisture Storage • Artificial drying • Disadvantage: can be expensive due to energy costs • Field drying – crop remains in the field longer • Disadvantage: weather losses/damage, predators, harvest loss, time in field • Proper ensiling

5. Too much moisture • Bacteria growth • Mold growth • Fungi growth • Reduce palatability, alter nutrients, and produce toxins • Fermentation and heat = browning • Spoilage and nutrient destruction • Issues with caking • Spontaneous combustion risks

6. Pest Infestations • More common issue for grains rather than forages. • Insects or rodents • Damage may be grain destruction or contamination. • Feces and urine contamination 10 x more than grain destruction or consumption • Reduce palatability • Increase risk of disease

7. Reducing Pest Issues • Store feed in rodent proof containers • Don’t store against the wall. Leave space. Off floor. • USDA inspection issue • Empty and clean bins when not used. • Clean up spills. • Keep feed rotated – first in first out (labels and dates on containers). • Get a rat terrier!!!

8. Mixing Feeds • Most important thing is accurate formulations and proper weighing. • Scales must be adequate and appropriate. • Scales should be maintained and kept clean, calibrated on a regular schedule. • Conversions are a must-have skill.

9. Types of Feed Mixers • Two major types • Batch Feed Mixers • Continuous Flow Mixers

10. Batch Feed Mixers • Types • Vertical • Horizontal • Auger wagon

11. Mixers • Advantage of horizontal over vertical mixers: • Better for molasses and liquid ingredients. • Handle silage and ground hays better. • More expensive. • Require less mixing time. • Typically higher energy cost

12. Batch Mixers • Stationary • Advantages:High accuracy, flexibility for mixing • Disadvantages: Feed needs transported to mixer, storage, labor and energy costs • Portable • Advantages: Convenient to producer, ease of transport, uses existing tractors for power, fenceline feeding, freshly mixed • Disadvantages:Equipment tied up, labor and time, start up costs (renting or purchasing)

13. Continuous Flow Mixers • Ingredients are simultaneously measured, ground and mixed. • Advantages: automated, little space needed, accurate, may be more ideal for smaller situations and batch sizes. • Disadvantages: No roughage, storage costs, energy costs, transporting costs associated with ingredients and finished mixes.

14. Mixing of Feeds • Order of ingredients added is EXTREMELY important to the final mix. • Typical corn/SBM diets • About 25% corn should be added first to “charge” the mixer. • Followed by vitamin/mineral premix, additives, protein supplements. • Followed by remaining grain. • Liquids should not be added at the very end but after the critical additives (approximatley 60 – 70% of the mixing time)

15. Factors Affecting Mixing Efficiency • Type of mixer chosen • Sequence of ingredients • Filling of mixer • Length of mixing time • Ingredient particle size • Ingredient density • Proper clean out • Flushing with ground grain after mixing a batch

16. Interpreting Mixer Tests • Assay for salt in multiple locations within the mix to determine the mean & standard deviation. • Determine coefficient of variation (CV): • %CV = SD/mean x 100 • < 10% CV is Excellent mixing • 10 – 15% CV = Good = increase mixing time by 25 – 30% • 15 – 20% CV = increase mixing time by 50% • > 20% CV = may need to re-evaluate other factors

17. Example Mean = 0.523 Standard Deviation = 0.1156 CV = (0.1156/0.523) x 100 = 22.10% What would you do with this mix?

18. Feed Laws, Tags & Labeling

19. Appreciating the legal aspects of feed manufacturing • Manufacture and distribution of commercial feeds are regulated primarily through respective State Departments of Agriculture in accordance with each State’s laws.

20. AAFCOAssociation of American Feed Control Officials Purpose: “Provide a mechanism, for developing and implementing uniform and equitable laws, regulations, standards, definitions, and enforcement policies for regulating the manufacture, labeling, distribution and sale of animal feeds; resulting in safe, effective, and useful feeds. The Association thereby promotes new ideas and innovative procedures and urges their adoption by member agencies, for uniformity”

21. Functions of Feed RegulationsDefined by AAFCO • Provide protection for the consumer as well as the regulated industry. • Safeguard the health of man and animals. • Provide a structure for orderly commerce.

22. Uniform State Feed BillModel Bill • Officially adopted by AAFCO • Guideline for respective states – published annually • www.aafco.org • Endorsed by: • American Feed Industry Association • National Grain and Feed Association • Pet Food Institute

23. Registration • Every manufacturer must register each facility in the state. • Must register commercial feeds. • Registration forms are obtained from FDA. • Will need additional forms if drugs are included as additives. • Fees are assessed by tonnage distributed

24. What’s on the Label • Required for all commercial feed products • Identify the product • Inform the user of the nature of the product • Inform the user of the intended purpose • Provide instruction on how to use the product • Convey particular precautions

25. LABELING REGULATIONS • Regulations specify • minimum information providedon the label • optional information that may be included • information prohibitedfrom being put on the label of a feed product. • Unsubstantiated performance claims can be as misleading as unsubstantiated nutrient claims. • Labels must be affixed to bags of feed (except custom mixes)

26. LABELING REGULATIONS • Minor differences exist from state to state, but feed labels generally contain the following: • Product Name • Purpose statement • Guaranteed analysis • List of ingredients • Directions for use • Warnings, if any • Name and address of manufacturer • Net weight

27. LABELING REGULATIONS • Labeling must also direct proper use of the product = Purpose Statement • Must contain the specific species and physiological stage if appropriate • Swine – Grower 44 – 110 pounds • Pasture extender for beef cattle • Directions may be as simple as naming the species for which the feed is intended. • Or could provide a lengthy explanation as to how the feed should be fed.

28. LABELING REGULATIONS • Custom feeds (prepared for a specific customer) are to be accompanied by a label, delivery slip, or other shipping document containing : • Name & address of the manufacturer • Name & address of the purchaser; Date of delivery • Product name & brand name, if any • Net weight of each ingredient used in the mixture • Adequate directions for use of feeds containingdrugs or other ingredients to ensure their safe use • Such precautionary statements as are necessaryfor safe and effective use of the feed

29. LABELING REGULATIONSIngredient Lists • Ingredients to be listed in order of amount • Starting with the item in highest concentration, and continuing with those found in smaller quantities • Names of ingredients must be official registered names as defined by AAFCO • No reference to quality or grade shall appear

30. Collective Term Ingredients • Often used to prevent registration of each new product when grain nutrient concentrations change. • Allows companies flexibility and economical savings. • Recognize a general classification of ingredient origin, which provide a similar function, but do not imply equivalent nutritional value • Official terms include: Animal protein products, forage products, grain products, plant protein products, processed grain by-products, roughage products, molasses products

31. Collective Ingredients: Are all of the below included? • Animal Protein Products 1. Shrimp meal 2. Hydrolyzed hair 3. Hydrolyzed poultry feathers 4. Meat and bone meal 5. Casein 6. Animal Blood - dried

32. Collective Ingredients: Are all of the below included? • Forage Products 1. Ground grass 2. Alfalfa meal, dehydrated 3. Soybean hay 4. Brewers rice 5. Corn plant, dehydrated 6. Alfalfa hay, dehydrated

33. Collective IngredientsAre all of the below included? • Grain products 1. Brewers rice 2. Oats 3. Corn 4. Barley 5. Soybean Meal 6. Wheat

34. Collective IngredientsAre all of the below included? • Processed Grain By-Products 1. Corn gluten meal 2. Corn gluten feed 3. Buckwheat middlings 4. Rice bran 5. Oat groats 6. Wheat mill run

35. Labeling: Guaranteed Analysis • Required based on species • Voluntary nutrients can be added

36. Swine GA Requirements • Crude Protein = Minimum % • Lysine = Minimum % • Crude fat = Minimum % • Crude fiber = Maximum % • Calcium = Minimum & Maximum % • Phosphorus = Minimum % • Salt = Minimum & Maximum % • Selenium = Minimum ppm • Zinc = Minimum ppm

37. GA Requirements for Labeling

38. Label Standard Format Non Medicated Feed • Brand & Product Name • Purpose statement • Guaranteed analysis • List of ingredients • Directions for use (including any warning or caution statements) • Name and address of manufacturer • Quantity statement Medicated Feed • Brand & Product Name • The word “medicated” • Purpose statement • Drug purpose statement • Guaranteed analysis • List of ingredients • Directions for use (including any warning or caution statements) • Name and address of manufacturer • Quantity statement

39. Beef Complete and Supplement Feeds BLUE BIRD BEEF FEED Pasture Extender for Beef Cattle Guaranteed Analysis Crude protein (Min) 12% (This includes not more than 2.9% equivalent crude protein from non-protein nitrogen) Crude fat (Min) 2.0% Crude fiber (Max) 10.0% Calcium (Min) 0.5% Calcium (Max) 1.0% Phosphorus (Min) 0.5% Salt (Min) 11.0% Salt (Max) 13.2% Potassium (Min) 0.4% Vitamin A (Min) 10,000 IU/Lb Ingredient Statement Grain products, plant protein products, molasses products, urea, mineral pre-mix, vitamin A supplement, Vitamin E supplement Feeding Directions = Self-feed to beef cattle on pasture. Feed 4 – 6 Lbper head per day as a pasture extender. Caution = Use as directed. Observe cattle daily and monitor intake. Do not feed additional salt. Manufactured by: Blue Bird Feed Mill City, State, Zip NET WT 50 LB (22.67 Kg)