Growth and egg production of layer pullets can be affected by the method of supplying energy and protein sources

Ocak N., Sungu M.

JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, cilt.89, sa.11, ss.1963-1968, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 89 Sayı: 11
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1002/jsfa.3684
  • Dergi Adı: JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1963-1968
  • Anahtar Kelimeler: layer pullet, nutrient source, growth, days to first egg, daily photoperiod, SEXUALLY-MATURING PULLETS, LAYING HENS, SELF-SELECTION, DIETARY MANIPULATIONS, LEGHORN PULLETS, BODY-WEIGHT, FEED-INTAKE, CHOICE, PERFORMANCE, CALCIUM
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

BACKGROUND: The effects of different methods of offering energy (ES) and protein (PS) sources on growth and egg production of layer pullets were assessed. From 9 to 22 weeks of age, 320 layer chickens (Isa Brown) were allocated to four treatments: 1, control (balanced diet); 2, E60:P40 (ES and PS in balanced diet sequentially during 60 and 40% of daily photoperiod respectively); 3, E40:P60 (ES and PS in balanced diet sequentially during 40 and 60% of daily photoperiod respectively); 4, EPFC (free choice between ES and PS in separate troughs).