CiteScore: 1.8
SCOPUS 2023
UN SDG
EVENTS
Biotech Studies 1998, Vol 7, Num, 1     (Pages: 060-070)

THE EFFECTS OF DIFFERENT-ENERGY-LEVEL RATIONS ON FATTENING PERFORMANCE SOME SLAUGHTER AND CARCASS CHARACTERISTICS OF HOLSTEIN BULLS, FATTENED AT SEMI-CONFINEMENT BARN IN WINTER

Ahmet GÜRBÜZ ,Durmuş ÖZTÜRK 1 ,A. Hadi BAŞARAN 1

1 Tarla Bitkileri Merkez Araştırma Enst., ANKARA - The purpose of this study was to determine the effects of the diffrenet energy-level-rations on fattening performance and carcass characteristcs of 10 month old Holstein bulls fattened at semi confinement barn, during winter.

The animals at the each group consumed ad libitum concentrate feed, containing an energy level of 600, 650, 700 Starch Equivalent and 1 kg of straw was given daily per animal.

The average daily live-weight gain, feed efficiencies, the dressing percentage of cold carcass and kidney-pelvis-cavity fat weight of the groups were 1190 g, 6.91 kg/d, 55.4 %, 3.26 kg; 1257 g, 6.67 kg/d, 57.9 %. 4.64 kg and 1244 g, 6.67 kg/d, 57.7 % 3.90 kg respectively. Keywords : Holstein bulls; ad libitum; fattening performance;the dressing percentage of cold carcass