Page 130 - Zoo Animal Learning and Training
P. 130

114    Tasks for the Veterinary Assistant



               TABLE 7.1
            Macrominerals
            Mineral – chemical
            symbol            Action or need in body          Problems caused                Source
            Calcium           Together with P gives structural   Skeletal abnormalities, especially   Milk
            (Ca)              strength to bones and teeth. Transfers   during growth and/or lactation  Ground egg shell
                              information between cells, plays a part                        Bonemeal
                              in nerve impulses, blood coagulation,   Hypercalcemia or too much calcium
                              and muscular contraction        can result in renal failure and
                                                              mineralization of the kidney
            Sodium            Together with Na it regulates blood   Low blood pressure       Part of the salt
            Na                pressure and volume. Regulates                                 molecule (NaCl)
                 NaCl         osmotic pressure and body pH or the   Caused by vomiting, diarrhea,
            Chloride          acid–base balance               dehydration
            Cl
            Magnesium         Important enzymes for muscle and   Symptoms of extremely low levels   Legumes, nuts,
            (Mg)              nerve function, regulation of blood   include loss of appetite, vomiting,   seeds, grains, milk
                              sugar levels and blood pressure. Used   fatigue, weakness
                              in the production of protein, bone,    
                              and DNA                         Can cause numbness, tingling,
                                                              muscle cramps, abnormal heart
                                                              rhythm, and seizures
            Phosphorus        Along with Ca it maintains rigidity   P can speed up kidney failure  Added as an
            (P)               of bones and teeth. Important in                               additive to feed
                              cell membrane structure, provides                              and is found in
                              energy at the cellular level, and is an                        plants
                              important structural component of
                              DNA and RNA
            Potassium         Maintains water and acid–base   In the young, slow growth, muscular   K is found in
            (K)               balance, and osmotic pressure.   weakness, stiffness, reduced heart   the Earth’s crust
                              Metabolizes carbohydrates and   rate, acidosis, nervous disorders, and   and is mined for
                              proteins. Regulates neuromuscular   death if totally deficient  supplements, it is also
                              activity and heartbeat                                         absorbed by grasses
                                                                                             fed for livestock
            Sulfur            Essential component of enzymes and   Slow growth, reduced;milk   Forages, water,
            (S)               antioxidants that strengthen skin,   production, and feed efficiency  corn, gluten feed,
                              hair, fur, and feathers. Important in                          distiller’s grain
                              cartilage health and the structure of   Severe deficiencies: anorexia, weight
                              proteins. Also importantin the pH   loss, dullness, and slow movement
                              balance of blood                 
                                                              Excess sulfates in water can cause
                                                              polioencephalomalacia (PEM)
                                                              in cattle. May cause blindness,
                                                              muscle tremors, difficulty walking,
                                                              convulsions, and death


          List of Ingredients                                have more animal protein than the first product listed
                                                             had from meat. More about dry matter basis later in this
          The list of ingredients is in order of quantity based on   chapter.
          weight. Protein sources like meat are often listed first
          because of high water content they weighs more than  Adequacy Statement
          meal, which has been cooked down to a powder. If the
          first ingredient on the label is chicken and the second is   Nutritional adequacy statement is used to help you
          chicken meal, the FDA and AAFCO point out that if you   match the pet’s nutritional needs with a product. For
          could compare first and second ingredients on a dry   example, Hill’s™ Pet Nutrition W/D is a weight
          matter basis, we would see that the chicken meal would   management diet formulated to help pets lose weight or
   125   126   127   128   129   130   131   132   133   134   135