TY  - JOUR
AN  - 013561353
PY  - 1937/01/01
TI  - The effect of varying levels of vitamin A in the hen ration on the vitamin A content of the egg yolk, on hatchability and chick livability
JO  - Poultry Sci
VL  - 16
SP  - 39
EP  - 43
UR  - https://eurekamag.com/research/013/561/013561353.php
ER  -