Selection for Four-Week Body Weight in Japanese Quail Under Two Nutritional Environments

Divergent selection for four-week body weight in Japanese quail (Coturnix coturnix japonica): response to selection and realized heritability

The Japanese quail has been utilized as a research species in establishing the genetic relationships that may also be present in other species. Divergent phenotypic selection for 4-wk BW was conducted for three generations in high (HW) and low (LW) lines. Within each line, 50 females and 25 males were selected among 600 birds, based on 4-wk BW. Mean BW at 4 wk of age in the base generation was ...

Selection for Body Weight in Japanese Quail under Different Nutritional Environments

divergent selection for four-week body weight in japanese quail (coturnix coturnix japonica): response to selection and realized heritability

the japanese quail has been utilized as a research species in establishing the genetic relationships that may also be present in other species. divergent phenotypic selection for 4-wk bw was conducted for three generations in high (hw) and low (lw) lines. within each line, 50 females and 25 males were selected among 600 birds, based on 4-wk bw. mean bw at 4 wk of age in the base generation was ...

Divergent Selection under Two Nutritional Environments for Packed Erythrocyte Volume in Japanese Quail.

Two-way selection for two-week packed erythrocyte volume (PCV) was practiced for four generations under two nutritional environments in the Japanese quail (Coturnix coturnix japonica). One environment was an iron, copper-"adequate" diet and the other was iron, copper-deficient "stress" diet. Response to selection was greater in both directions under the adequate environment than under the stres...

Response to Selection for Body Weight in Japanese Quail (Coturnix coturnix japonica)

The present studyinvestigated the impact of selection for body weight (BW) on productive performance, predicted BW and genetic improvement of related traits in Japanese quail. Base population, selected parent and F1 progeny were tested. Pens and cages were used for rearing and breeding. A total of 240 birds in two successive generations, 27 sires and 54 dams (as selected parents) were used. Bod...