Use of meat and bone meal in broiler diets.
Abstract
In a feeding trail with 191 broilers the effects of 0 (KG), 5 (VG1) and 10 % meat and bone meal (VG2) on growth and carcass traits and the nutrient flow into the environment were investigated. The further components were maize, soybean meal, soybean oil, maize glu-ten meal, L-lysine-HCl, DL-methionine and mineral- and vitamin-premix. The protein con-tent of compound feed was 21.5 % on average. The LW of the chickens at the start was 55 g and at the end of the growing periode (38th day) 1.93 (KG), 1.92 (VG1) and 1.86 kg (VG2), the feed conversion rate was 1.88, 1.90 and 1.94 kg and the carcass dressing 77.3, 78.1 and 78.1 %, respectively. The sensoric test of breast meat for tenderness, juiciness and taste showed no differences between the feeding groups. The protein content in the carcass of KG, VG1 and VG2 was 17.2, 16.9 and 16.9 and the fat content 14.6, 16.0 and 15.9 %, respectively. The nutrient flow into the environment was evaluated by analysis of feed, broilers, straw and litter. The balances was made for DM, N2, fat, fiber, ash, N-free extracts and GE. Per broiler, 8 to 14 g N2 were emitted. Fat showed a net synthesis for KG, VG1 and VG2 of 27, 83 and 110 g, respectively. 88 % of the N-free extracts were metabolized and of total consumed GE 27.5, 26.1 and 26.4 MJ were emitted per broiler of KG, VG1 und VG2, respectively.
broiler meat and bone flour growth performance carcass performance enviromental pollution
Publikationen
Project staff
Rudolf Leitgeb
Ao.Univ.Prof.i.R. Dipl.-Ing. Dr.nat.techn. Rudolf Leitgeb
Project Leader
01.09.1995 - 30.06.1997
Wolfgang Wetscherek
Ao.Univ.Prof.i.R. Dipl.-Ing. Dr.nat.techn. Wolfgang Wetscherek
wolfgang.wetscherek@boku.ac.at
Tel: +43 1 47654-97606
Project Staff
01.09.1995 - 30.06.1997
BOKU partners
External partners
Tierkörperverwertung Reggau
Dr. F. Baumann
partner