<p>Caprinos e bovinos foram utilizados num delineamento change over 3x3, para avaliar a degradabilidade dos tratamentos: A) farinha de carne e osso com 50% de proteína bruta (FCO 50); B) farinha de carne e osso com 40% de proteína bruta (FCO 40) e C) farelo de soja (FS) pela técnica dos sacos de náilon in situ. Cana-de-açúcar foi o único volumoso ofertado. As taxas de degradabilidade da MS (matéria seca) e PB (proteína bruta) foram semelhantes entre caprinos e bovinos, em todos os tratamentos. Os valores de degradabilidade da FCO-40 e da FCO-50 foram semelhantes, porém menores (p &lt; 0,01) do que o FS a partir de 1,5 hora de incubação. A degradabilidade efetiva da MS foi de 77,4% para o FS; 39,0% para a FCO-40 e 39,1% para a FCO-50. Nos tempos 1,5 h, 3 h, 6 h e 12 h a FCO-50 teve a PB menos degradada que a FCO-40. O FS apresentou sua PB mais degradada dos que as FCO, somente nos tempos de 12 h e 48 h de incubação (p &lt; 0,05). A degradabilidade efetiva da PB foi de 72,4% para o FS; 54,4% para a FCO-40 e 49,8% para a FCO-50. O experimento permitiu concluir que as FCO podem prover maiores quantidades de PB para os intestinos, em relação ao FS, após 12 horas de incubação.</p> | Goats and heifers were used in a 3 x 3 change over design to evaluate the treatments: A) Meat and bone meal with 50% of CP (MBM 50), B) Meat and bone meal with 40% of CP (MBM 40), C) Soybean meal (SM). In situ nylon bag technique was used. Sugar cane was fed as the only roughage. Rates of disappearance of DM and CP were similar for goats and bovines<br />in all treatments. DM of MBM 40 and MBM 50 presented similar  degradability rates, and both had minor degradability (p &lt; 0.01) than SM beginning at 1.5 h incubation time. Effective degradability of DM was 77.4% (SM), 39.0% (MBM 40) and 39.0% (MBM 50). At incubation times 1.5 h, 3 h, 6 h and 12 h, MBM 50 had less protein degraded than MBM 40. SM had CP more degraded than MBM only at 12 h, 24 h and 48 h of incubation time (p &lt; 0.05). Effective degradability of CP was 72.4% (SM), 54.4% (MBM 40) and 49,8% (MBM 50). It was concluded that both meat and bone meals can provide more undegraded<br />protein, related to soybean meal, after 12 hours of incubation time.<br />

This experiment was conducted to investigate the effects of 2 ppm iodine supplementation to drinking water of broilers on body weight, feed efficiency, carcass dressing percentage, feed consumption per kg carcass, mortality and litter moisture. In the present study a total of 512 day-old sexed Avian Farm broiler chicks were used