Breeding system

Question 1

is a group that has specific traits or characteristics in common

Answer 1

breed

Question 2

the performance of pig is influenced by its?

Answer 2

environment and genetic potential

Question 3

are mating animals used to produce a purebred or a crossbreed.

Answer 3

breeding systems

Question 4

breeding of closely related animals

Answer 4

inbreeding

Question 5

is not recommendable due to its not negative effect on the production performance of the animal

Answer 5

continuous inbreeding

Question 6

effects of inbreeding, if not properly done.

Answer 6

1. reduction in the strength & vigor of piglets
2. decrease in the number of pigs born and weaned
3. decrease in the weight of piglets at birth and weaning
4. sterility and abortions
5. retardation of physiologic maturity
6. occurrence or Abnormalities

Question 7

a system of breeding wherein animals of the same breed are mated to each other

Answer 7

pure breeding

Question 8

breeding of 2 animals from different breeds

Answer 8

crossbreeding

Question 9

2 important reasons for the production of market hogs

Answer 9

a. to obtain hybrid vigor or heterosis
b. to bring together the desirable characteristics of the parental breeds

Question 10

advantages of crossbred over purebred animals;

Answer 10

1. superior in terms of litter, weight at birth and at weaning
2. sows are better mothers
3. fast growing

Question 11

advantages of crossbreeding

Answer 11

1. increased vigor and growth rate of litters
2. large litters
3. increased production efficiency to about 5-10%
4. increased disease resistance

Question 12

crossbreeding can be differentiated as follows;

Answer 12

1. two way cross mating with the use of two different breeds
2. three way cross mating with the use of three different breeds
3. four ways cross mating with the use of four different breeds

Question 13

a system of breeding wherein an inferior breed is improved by continued crossing

Answer 13

upgrading

Question 14

Requirements in Judging and Selection of animals

Answer 14

1. good production of the sow
2. long life
3. good ADG for the offspring
4. good FCR of the offspring
5. good carcass quality of the offspring