共 50 条
- [1] CAUSES OF DROP IN EGG-PRODUCTION IN BELGIAN LAYING FLOCKS VLAAMS DIERGENEESKUNDIG TIJDSCHRIFT, 1978, 47 (04): : 292 - 298
- [9] EFFECTS OF A SHORT LAYING REST ON POSTREST EGG-PRODUCTION AND EGG QUALITY AGRICULTURAL SCIENCE IN FINLAND, 1993, 2 (05): : 437 - 445