Test 2: lecture 5 pigs

Question 1

farrowing room weaning age at ___

Answer 1

3 weeks

15 lbs

Question 2

nursery for pigs

Answer 2

socially regrouped by sex and size

switch from milk to food

11 weeks 55 lbs

Question 3

finisher

Answer 3

diets change

22 weeks 270 lbs → to markert or sow herd

Question 4

gestation in a sow

Answer 4

115 days 3 month 3 weeks 3 days

Question 5

lactation for a sow

Answer 5

14-28 days

Question 6

main source of carb for pigs

Answer 6

cereal grain → normal corn, can be wheat, milo, barley or oats

Question 7

what is used for fat for pig diets

Answer 7

tallow

grease

(needed during lactation)

Question 8

limiting amino acids in cereal grains for pigs

Answer 8

lysine

tryptophan

threonine

Question 9

main protein source for pig

Answer 9

cereal grains, seed meal and by products

soybean meal

synthetic crystalline amino acids

lysine: 3 lbs lysine +97 lbs corn= 100 lbs SBM (soy bean meal)

Question 10

what kind of protein is a pig made to digest

Answer 10

animal protein

will slowly adjust to eat plant protein

Question 11

macrominerals in pigs

Answer 11

Ca: P

1. 1:1
2. 5:1

(need more calcium)

Question 12

___ are important water soluble vitamins for pig

Answer 12

B vitamins

Pantothenic Acid

Cobalamin (B12)

Riboflavin (B2)

Niacin (B3)

Question 13

why don’t pigs need vit C

Answer 13

can make in their bodies

Question 14

water requirements for pigs

Answer 14

2-5 L/lbs of feed

7020 L/100 lbs body weight

1.5-2x feed by weight

flow rates 0.25-0.5 L.min for baby 1 L/min for adult

Question 15

water quality for pigs is based on amount of ___

Answer 15

nitrates

bacteria

dissolved solids

Question 16

peri-parturient behavior in sow

Answer 16

tend not to eat during lactation

limit feed in gestation- keep 3-3.5 body condition (is they are too big they wont eat)

challenge feed during lactation (try to get them to eat)

Question 17

enzymes in weaning pigs

Answer 17

wean at 3 weeks, need to increase amylase and decrease lactate → pre-feed

Question 18

phase feeding of pigs

Answer 18

when born pigs need more protein

feed at different stages/phases → stay above the minimum requirement

Question 19

split-sex feeding

Answer 19

Gilts eat less per day

• Grow less per day
• Are overfeed if fed the same as barrows

• New castration technology
– Feeding boars until last 4 to 8 weeks of life
– Boars more efficient than gilts or barrows

Question 20

anti-nutrient agents

Answer 20

unused nutrient pass through the animal and pollute the environment

Question 21

phytase

Answer 21

used to break down phitin that binds to phosphate

something with phosphorus

Question 22

feed consumed/weight gain

Answer 22

feed efficiency