supplemental dietary fat and, 29

vitamin requirements and, 27

BRL 35135, 18

bST. See Bovine somatotropin

C

Carbohydrate metabolism

catecholamines in, 13

somatotropin and, 11

Cardiac function

adrenergic receptors in, 13, 14, 15

bovine somatotropin and, 12

catecholamines in, 13

Catecholamines

receptor mechanics, 13

role of, 13

Cimaterol, 14, 15, 35, 54

in muscle development, 16, 17, 18

Clenbuterol, 14, 15, 16, 17, 18, 53-54

Corn silage, 28

D

Dairy cattle

body composition, 3

body condition assessment, 29

carbohydrate metabolism, 11

energy metabolism, 9, 10, 25-26, 28

fiber needs, 28

forage feeds, 28

grain feeds, 1, 28

insulin metabolism, 10

lipid metabolism, 10-11

mammary gland metabolism, 12

milk synthesis, 1, 3, 4

protein metabolism, 26-27

supplemental dietary fat for, 28-29

See also Bovine somatotropin

Dietary fiber

bovine somatotropin and, 27-28

sources for cattle, 28

Diethylstilbestrol, 36

DNA, 6

muscle, 12

Dopamine, 13

Ducks, 16

See also Poultry

E

Embryonic interventions, 54-55

Energy metabolism

β-adrenergic agonists in, 18-19

anabolic steroids in ruminants and, 36-37

bovine somatotropin in, 9, 10, 25-26, 32, 33

in growing cattle, 32

in growing ruminants, GRF and, 34

porcine somatotropin in, 9, 38, 40, 41-42, 46-48

swine maintenance energy, 42-43

Epinephrine

growth effects, 14-15

role of, 13

structure, 13

Estradiol, 19, 20, 21, 22, 36

Estrogen, 19, 20

F

Factorial estimation, 39

Fat content

anabolic steroids and, 21, 22

compensatory growth in poultry and, 54

in dairy cattle feed, 28-29

energy/protein intake in swine and, 39-41, 46

of food products from animals, 3

in growing cattle, 31

in growing lambs, 33, 34

of milk, 24-25, 28

in poultry, 52, 53, 54

somatotropin and, 5, 10-11

swine accretion rates, 3, 6, 10

Feed efficiency, 3

β-adrenergic agonists and, 15, 35, 54

anabolic steroids and, 20-21

bovine somatotropin and, 3, 8, 23, 25, 26, 31-32, 33

chicken somatotropin and, 52-53

dairy cattle, 28

energy/protein intake in swine, 40-41, 46-48

in growing cattle, 31-32, 33

in growing lambs, 32, 33

porcine somatotropin and, 3, 6, 7, 39, 44

poultry, 54

somatotropin and, 5

swine, 38

Fishmeal protein, in ruminants, 33, 35, 36

G

Goats, 12

Growing ruminants

β-adrenergic agonists in, 15, 19, 35-36

amino acid metabolism in, 1-2, 30, 35, 36

anabolic steroids and, 22, 36-37

bovine somatotropin, 31-33

energy metabolism, 1, 36-37

estimating nutritional needs of, 30

growth hormone-releasing factor in, 30-31, 34-35

metabolic modifiers and, 1-2

mineral requirements, 36

nutrient requirements, 1-2, 34-35

protein metabolism, 1-2, 12, 37

protein requirements, 30

research needs, 35, 36

skeletal muscle growth, 19

somatotropin effects in, 8, 30-31

Front Matter (R1-R12)

Executive Summary (1-2)

1. Introduction (3-4)

2. Mechanisms of Action of Metabolic Modifiers (5-22)

3. Effect of Somatotropin on Nutrient Requirements of Dairy Cattle (23-29)

4. Effect of Metabolic Modifiers on Nutrient Requirements of Growing Ruminants (30-37)

5. Effect of Metabolic Modifiers on Nutrient Requirements of Growing Swine (38-51)

6. Effect of Metabolic Modifiers on Nutrient Requirements of Poultry (52-58)

References (59-73)

Authors (74-74)

Index (75-82)