Hydrolysed poultry byproduct meal in extruded diets for cats

Arch Anim Nutr. 2024 Feb 12:1-15. doi: 10.1080/1745039X.2024.2312700. Online ahead of print.ABSTRACTHydrolysed proteins have been shown to be potential ingredients in cat diets due to their high digestibility, presence of bioactive peptides, and relatively low antigenicity. The effects of the substitution of conventional low ash poultry byproduct meal (PBM) with hydrolysed poultry byproduct meal (HPM) as a protein source were evaluated in extruded cat diets. Five diets with similar nutrient contents were formulated: a control (CO) diet based on PBM and 4 diets with different inclusions of HPM (5%, 10%, 20%, and 30%, on an as-fed basis) replacing PBM as the protein source. The total tract apparent digestibility (CTTAD) of nutrients, faecal characteristics and microbial fermentation products, urine production and pH, nitrogen balance and urea renal excretion were evaluated using 30 healthy cats (15 males and 15 females; 4.18 ± 0.86 kg; 4.17 ± 1.38 years old), with 6 cats per diet in a complete randomised block design. When significant differences were found with the F test, the effects were evaluated by polynomial contrasts according to HPM inclusion (p < 0.05). The CTTADs of DM (89 ± 0.41%), CP (90 ± 0.36%), fat (93 ± 0.41%) and gross energy (90 ± 0.33%) were similar among treatments (p > 0.05). The faecal production, score, short-chain fatty acids and ammonia concentration were similar among treatments (p > 0.05). Isobutyric, isovaleric, valeric, and total bran...

Source: Archives of Animal Nutrition - February 12, 2024 Category: Nutrition Authors: Lucas Bassi Scarpim Eloise Cristina de Ramos Leticia Graziele Pacheco Camila Goloni Stephanie de Souza Theodoro Tha ís de Souza Ávida de Castro Aulus Cavalieri Carciofi Source Type: research