Biotech Studies 1998, Vol 7, Num, 1     (Pages: 071-083)

THE ECONOMICAL IMPORTANCE AND PLACE OF THE ADDITIONAL UREA AND CONCENTRATED FEED TO INCLUDING STRAW AND STRAW + UREA SUGAR BEET PULP SILAGE AT THE FATTENING OF HOLSTEIN BULLS

Ahmet GÜRBÜZ ,Mehmet APAYDIN ,Bekir ANKARALI ,Durmuş ÖZTÜRK

1 Tarla Bitkileri Merkez Araştırma Enstitüsü, Ankara Viewed : 876 - Downloaded : 1055 In this study, two kind of s ugar beet pulp silage groups and two concentrated feed groups were compared. The concentrated feed II was formed by adding urea and supplement to 0.5 kg concentrated feed I. The trial groups were as follows:

1. group Sugar beet pulp silage with urea and straw + concentrated feed I (2kg/d)
2. group Sugar beet pulp silage with straw + concentrated feed I (2 kg/d)
3. group Sugar beet pulp silage with urea and straw+concentrated feed ,II (0.71kg/d)
4. group Sugar beet pulp silage with straw + concentrated feed II. (0.71kg/d)
5. group (control) grouınd barley (ad-lib) + concentrated feed I (2kg/d)

During the fattening period, 5. Group had the highest level of totally and daily average live-weight gain with 212.9 kg and 1267 g; 1045 g it was followed by 1.. 2., 4. and 3. Groups with 185.7 kg. 1105g; 176.3 kg; 170.2 kg, 1013 g and 168.0 kg, 996 g respectively.

The average daily and for 1 kg of live-weight gain feed dry matter consumption of groups were 7.15, 650; 7.20, 6.92; 6.92, 6.98; 6.98, 6.89 and 6.73, 5.58 kg for 1, 2, 3, 4 and 5. groups respectively,

The highest values of the slaughter and cold carcass weihts and dressing percentage were found in group 5 with 396.7 kg, 233 and 58.3 % and 3. group had the lowest values with 348.3 kg and 192.7 kg and 55.3 % in the groups respectively. Keywords : Ad-libitum; sugar beet pulp silage; fattening