Apparent Digestible Protein and Energy Coefficients of Common Feed Ingredients for Channel Catfish

Abstract

Apparent digestible protein and energy coefficients for corn, cottonseed meal, menhaden fish meal, meat and bone meal, peanut meal, rice bran, rice mill feed, soybean meal and wheat were determined in test diets processed in pelleted and extruded forms in adult channel catfish (Ictalurus punctatus). Test diets were fed ad libitum to fish and fecal samples were collected by the dissection technique. The digestibility value of each ingredient was determined by comparison of the digestibilities of a reference diet and a test diet containing a 70:30 mixture of the reference diet and the test ingredient. In general, the digestibility values determined by this method are higher than previously reported values based on single-source diets which were Cottonseed meal 5-01-621 4320 65-+4(3) 80-+5(3) Fish, menhaden meal 5-02-009 4416 95-+3(3) 92-+6(2) Meat and bone meal 5-00-388 3850 70-+2(3) 76-+7(3) Peanut meal 5-03-650 4431 68-+3(3) 76-+6(2) Rice bran 4-03-928 4232 53-+5(3) 50-+4(3) Rice mill feed ----38-+3(3) c 14-+4(3) Soybean meal 5-04-612 4185 73-+ 1(3) 72 -+3(3) Wheat, grain 4-05-268 3803 49-+6(3) 63-+5(3) aExpressed as kcal/kg on an as-fed basis (NRC 1977).

Erratum

“…Shipton (2000) reported a considerably lower APD value of 76.2% for cottonseed meal in H. midae than found in the present study. In agreement with present results, APD of cottonseed meal in different fish species (channel catfish, red drum, silver perch) and crayfish has been found to be around 83% (Wilson & Poe 1985;Reigh et al 1990;Gaylord & Gatlin 1996;Allan et al 2000). Wilson et al (1981) obtained a mean TAAA of 78.3% for cottonseed meal with channel catfish, while the corresponding value was 92.4% for peanut meal.…”

“…Wilson et al (1981) obtained a mean TAAA of 78.3% for cottonseed meal with channel catfish, while the corresponding value was 92.4% for peanut meal. APD of peanut meal was 76% for channel catfish (Wilson & Poe 1985) and 98.2% for silver perch (Allan et al 2000). A considerably lower ADP of 68.1% was reported for sunflower meal in H. midae by Shipton (2000).…”

Coeficientes de digestibilidade aparente de alimentos energéticos para juvenis de surubim

“…Khan (1994) encontrou, para o bagre tropical, (Mystus nemurus) elevado coeficiente de digestibilidade aparente da proteína bruta (81,0%) e da energia bruta (67,9%) do farelo de arroz . Wilson & Poe (1985) obtiveram em bagre do canal coeficiente de digestibilidade aparente da proteína bruta da quirera de arroz de 73,0%. Para o carnívoro marinho, "red drum" (Sciaenops oceallatus), McGoogan & Reigh (1996) determinaram coeficientes de digestibilidade aparente da proteína bruta mais próximos aos encontrados neste experimento para surubim (milho 81,56%, sorgo 77,08% e farelo de arroz 77,15%).…”

Coeficientes de digestibilidade aparente de ingredientes para juvenis de jundiá

“…Em peixes, entretanto, a digestibilidade do milho varia conforme a capacidade de digestão das diferentes Tabela 3 -Coeficientes de digestibilidade aparente (± desviopadrão) das dietas para juvenis de jundiá Corn gluten meal espécies (Halver & Hardy, 2002). Os peixes onívoros, em relação aos carnívoros, digerem melhor os ingredientes energéticos (Zavala-Camim, 1996). O jundiá, apesar de seu hábito alimentar onívoro, apresentou baixa digestibilidade da MS e EB deste ingrediente (57,2 e 59,1%, respectivamente), porém, com valor médio para a proteína (73,0%), quando comparado a outros peixes onívoros, como a piracanjuba, Brycon orbignyanus (92,4; 94,4 e 84,8% para PB, EB e MS, respectivamente) (Meurer, 1999), o pacu, Piaractus mesopotamicus (84,4 e 86,7% para PB e EB) (Abimorad & Carneiro, 2002) e a tilápia-do-nilo, Oreochromis niloticus (93,4; 76,6 e 73,2% para PB, EB e MS, respectivamente) (Boscolo et al, 2002).…”