ANSC354 Topic 7: Growing and Finishing Hogs

~120 lbs

Average weight of grower hogs

250-300lbs (~27 wks)

Average weight range & age of market hogs

lying

Most common hog behavior during grower/finisher stage

thermal comfort zone

temperature range in which animal does not have to expend additional energy to regulate its body temperature

high temperatures

As pigs grow, they become less tolerant of what temperatures?

70-85°F

40-75 lbs temperature comfort zone

60-83°F

75-150 lbs temperature comfort zone

45-80°F

150+ lbs temperature comfort zone

rough flooring

increases toe pad lesions

solid flooring

flooring minimizes lesions & increases structural support

void flooring

flooring increases temperature & increases cleanliness

1) partially slotted floors

2) fully slotted floors

3) solid floors

3 floor types for grower/finisher hogs

fully slotted floors

most common flooring type

more than 1/3

What is considered a partially slotted floor?

0.5 to 1.0 inch/foot

What is the ideal slope for a fully solid floor?

2 * feed intake

Water intake equation for grower & finisher hogs

> 0.2 gal/min

best water flow rate

1) Completely enclosed

2) Open fronted'

3) Open front with outside apron

4) Outside

4 types of pen/building designs

1) one-sided aisle

2) aisle with pen on 2 sides

3) no aisles

3 types of pen aisle design

stays constant

Average daily gain of growing & finisher hogs… [increases, decreases, stays constant]

1.93 lbs/day

Average daily gain at this stage

decreases

Lean gain of growing & finisher hogs… [increases, decreases, stays constant]

increases

Fat gain of growing & finisher hogs… [increases, decreases, stays constant]

118.3

Average days to market

2.82

Average feed/gain

1) Split sex feeding

2) Phase feeding

2 feeding strategies for grower & finishers

standardized ileal amino acid digestibility

SID stands for…

ractopamine

^bRAC stands for…

lysine

limiting amino acid for this stage

fat

Nutrient used to increase energy & decrease intake

fiber

Nutrient used to increase intake up to gut fill

Phosphorus (P)

3rd most expensive ingredient in feed

phosphorus

Excretions are an enviornmental concern

1) Calcium

2) Phosphorus

2 minerals needed during this stage

β-adrenergic agonist

Ractopamine is known as a…

1) increases fat-free lean

2) reduces fat deposition

2 benefits of ractopamine

Ileitis

number 1 health problem in growing pigs

Ileitis

GI disease that causes thickening of the small instestine wall & decreases nutrient absorption

Lawsonia intracellularis

causative agent of ileitis

Swine Influence Virus (SIV)

Disease with rapid onset, barking cough, & high temperature

Swine Respiratory Disease (SRD)

General term for any disease that targets the respiratory system