The impact of feeding sources of n-3 fatty acids (
FA
) to ISA brown and Shaver white breeders and their female offspring during rearing on egg production, eggshell, tibia, and keel bone attributes was examined. Breeders were fed Control (
CON
) or CON + 1% dried microalgae (
DMA
:
Aurantiochytrium limacinum
) as the source of docosahexaenoic acid or CON + 2.6% of a coextruded mixture of full-fat flaxseed (
FFF
) and pulses as a source of α-linolenic acid. Day-old offspring were fed 1) breeder CON-pullet CON (
CON-CON
), 2) breeder CON-pullet DMA (
CON-DMA
), 3) breeder CON-pullet FFF (
CON-FFF
), 4) breeder DMA-pullet CON (
DMA-CON
), 5) breeder DMA-pullet DMA (
DMA-DMA
), 6) breeder FFF-pullet CON (
FFF-CON
), and 7) breeder FFF-pullet FFF (
FFF-FFF
). At 18 wk of age (
WOA
), pullets were fed a common layer diet to 42 WOA for egg production and bone quality assessments. There was no (
P
> 0.05) interaction between strains and diets and the main effect of diets on egg production, egg mass, and eggshell quality. There was an interaction (
P
= 0.008) between strain and diet on egg weight (
EW
); however, the strain effect on EW (
P
< 0.001) was such that ISA brown had heavier eggs than Shaver white. Shaver white had higher (
P
< 0.001) eggshell %, eggshell, and tibia breaking strength (
BS
), as well as tibia ash concentration compared with ISA brown hens. In contrast, ISA brown hens exhibited heavier (
P
< 0.05) tibia and keel bones. Feeding breeders DMA and pullets both sources of n-3 FA increased tibia medullary ash concentration compared with other diets (
P
< 0.001). Shaver white hens showed greater decline in tibia BS (83.7 vs. 96.3%) and ash content (84.1 vs. 94.3%) than ISA brown hens from 18 to 42 WOA (
P
< 0.05). Strain and diets exhibited independent effects on eggshell, tibia, and keel attributes. Provision of α-linolenic acid and docosahexaenoic acid to breeders and offspring improved tibia medullary ash concentration at 42 WOA.