The objective of this study was to evaluate the apparent total tract digestibility (ATTD), ME, and fecal characteristics of adult dogs and puppies fed raw soybeans (RSB) and their by-products. Six treatments were evaluated: 1 reference diet (REF), based on a maize-poultry by-product meal, and 5 extruded diets containing 70% of the ingredients of the REF diet and 30% of a soybean processed product [defatted soybean meal (DSM), micronized soybeans (MSB), soybean meal (SBM), RSB, or toasted soybeans (TSB)]. Six adult dogs (5.8 yr old) and 6 puppies (5.1 mo old) were used in a study with a double Latin square design (6 × 6). Urease was reduced in all diets after extrusion, but trypsin inhibitor was reduced only in the diets containing SBM, DSM, and RSB. The ATTD of CP in DSM, SBM, MSB, TSB, and RSB were 85.1%, 85.2%, 88.4%, 84.7%, and 78.9%, respectively, for adult dogs. Soybean meal and DSM had the lowest ATTD of acid-hydrolyzed fat (AHF; 84.3% for both ingredients in adult dogs). The ATTD of DM and AHF in DSM and AHF in all soybean products were greater in puppies than adult dogs (P < 0.05). The ME content was greatest in MSB (21.39 MJ/kg) and least in DSM (15.23 MJ/kg). The feces of dogs fed soybean products were softer and had a lower pH (average of 5.91 vs. 6.05 for adult dogs fed soybean products and REF diets, respectively) and ammonia content (average of 3.82 vs. 4.32 g/kg for adult dogs fed soybean products and REF diets, respectively), except those fed RSB, which had similar fecal pH and ammonia values, compared with those fed the REF diet. Soybean products are good protein sources for both adult and growing dogs, provided they are heat treated before diet extrusion.
Endereço para correspondência: Alex Maiorka -amaiorka@ufpr.br R RE ES SU UM MO OExistem vários fatores que podem afetar o desempenho e rendimento dos frangos de corte, independentemente dos níveis nutricionais utilizados nas dietas, como a idade da matriz e o peso do ovo. Neste trabalho, foram avaliados os possíveis efeitos que a idade da matriz e o peso do ovo à incubação exercem sobre o desempenho zootécnico e rendimento de carcaça de frangos de corte. As aves foram distribuídas em um delineamento experimental inteiramente casualizado em esquema fatorial 3 x 3 (ovos provenientes de matrizes de 3 diferentes idades: 30, 48 e 60 semanas, e de 3 categorias de pesos: leves, médios e pesados). As variáveis analisadas foram consumo de ração, ganho de peso e conversão alimentar aos 7, 21, 35 e 42 dias e rendimento de carcaça (rendimento de peito, pernas e gordura abdominal) aos 42 dias de idade. Não houve interação significativa entre os fatores idade da matriz e peso do ovo. Frangos provenientes de matrizes jovens (30 semanas de idade) apresentaram piores resultados de consumo de ração, ganho de peso e conversão alimentar à primeira semana de idade, sendo que este efeito não se mantém até a idade de abate. Houve maior consumo de ração de frangos provenientes de ovos pesados aos 7 dias de idade. Conclui-se que não existe interação entre idade da matriz e peso dos ovos sobre desempenho zootécnico e rendimento de carcaça em frangos de corte. Palavras-chave: fatorial, incubação, matrizes pesadas, rendimento de carcaça. A AB BS ST TR RA AC CT TThere are several factors that can affect the performance and efficiency of broiler, regardless of the levels used in nutritional diets, such as breeder age and egg weight. In this study, were evaluated the effects of breeder age and egg weight carry on the performance and carcass yield of broilers. The birds were allocated in a completely randomized design in a factorial 3 x 3 (eggs from different breeder ages: 30 weeks, 48 weeks and 60 weeks and 3 categories of weights: light, medium and heavy). The variables analyzed were feed intake, weight gain and feed conversion to 7, 21, 35 and 42 days and carcass yield (carcass, chest, legs and abdominal fat) to 42 days old. There was not breeder age interaction for egg weight in broilers. Broilers from young breeders (30 weeks), presented worst results to feed intake, weight gain and feed conversion in first week, but this effect was not maintained until the slaughter age. The feed intake was increased on broilers from light eggs to 7 days old. It was concluded that no exist interaction between breeder age and egg weight on performance and carcass yield on broilers.
RESUMO Objetivou-se avaliar diferentes metodologias de determinação da digestibilidade em cães, alimentados com duas dietas contendo fontes proteicas animal (farinha de vísceras de aves -FVA) e vegetal (farelo de soja -FS Palavras-chave: ensaio de digestibilidade, indicadores, ingredientesproteicos. ABSTRACT The objective was to evaluate different methods of measuring digestibility in dogs fed two diets containing animal (poultry by products -PBP) and vegetable (soybean meal -SBM) protein sources. The methods evaluated were: total fecal collection (TFC) and indicators: acid insoluble ash (AIA), acid detergent fi ber (ADF) and crude fi ber (CF). Eight dogs were distributed in Cross
O presente estudo teve como objetivo avaliar as características das fezes de cães alimentados com trêsdietas: controle, com suplementação de 0,10% de MOS e com 0,25% de uma mistura de aluminossilicatos.Foram utilizados 15 cães adultos da raça Beagle. O experimento seguiu delineamento inteiramentecasualizado, em parcela subdividida no tempo, com cinco dias de colheita de dados e cinco cães recebendocada tratamento, totalizando 25 observações por tratamento. As dietas foram oferecidas por um período deadaptação de 25 dias seguidos de cinco dias de colheita total de fezes. As médias foram comparadas peloteste Tukey-Kramer (P<0,05). Os cães suplementados com a mistura de aluminossilicatos apresentarammaior teor de matéria seca (40,40%) e maior escore das fezes (4,00), em relação às outras dietas. A adiçãode MOS na dieta resultou em valores intermediários para matéria seca (37,91%) e escore fecal (3,64),enquanto os cães alimentados com a dieta controle apresentaram fezes com menor teor de matéria seca(35,72%) e escore (2,84). O teor de amônia foi menor nas fezes dos cães alimentados com as dietascontendo a mistura de aluminossilicatos (0,25%) ou MOS (0,25%), em relação à dieta controle (0,29%). OpH e a quantidade de fezes excretadas não diferiram entre os tratamentos. A adição de aluminossilicatos ouMOS na dieta melhora a qualidade das fezes dos cães.
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