Cashew nut meal in broiler diets

O objetivo deste trabalho foi avaliar o desempenho de frangos de corte alimentados com ração com farelo de castanha de caju (FCC). O delineamento experimental foi inteiramente casualizado, com seis tratamentos e oito repetições de 15 aves cada. Os tratamentos consistiram em seis rações isonutrientes com inclusão de 0, 5, 10, 15, 20 e 25% de ração com farelo de castanha de caju. O consumo de ração não foi influenciado pelos tratamentos. Entretanto, o aumento do FCC na ração promoveu aumento linear no ganho de peso, em todas as fases, e melhora linear na conversão alimentar, na fase inicial e no período total. Em relação ao controle, observou-se que, na fase inicial, as aves alimentadas com a ração com 25% de FCC apresentaram maior ganho de peso e melhor conversão alimentar. Na fase final e no período total de criação, a conversão melhorou a partir de 10% de inclusão, enquanto o ganho de peso foi maior a partir de 15% de inclusão. O rendimento de carcaça e a gordura abdominal não foram influenciados; os índices econômicos melhoraram com a inclusão do FCC. O FCC pode ser incluído nas rações de frangos de corte em proporções de até 25%.The objective of this work was to evaluate the performance of broilers fed diets containing cashew nut meal (CNM). The experiment followed a completely randomized design with six treatments and eight replicates of 15 broilers each. Treatments consisted of six isonutrient diets containing 0, 5, 10, 15, 20 and 25% of CNM. Feed intake was not affected by CNM levels. However, increasing CNM in diets promoted a linear increase in weight gain, in all phases, and a linear improvement in broiler feed conversion for the initial and total period. Compared to control diet, broilers fed diets with 25% of CNM inclusion, in the initial phase, showed the highest weight gain and the best feed conversion. During the final phase and all the feeding period, feed conversion was improved in broilers fed up to 10% CNM inclusion; and weight gain increased when inclusion of CNM was 15% or higher. Carcass yield and abdominal fat were not affected. Inclusion of CNM in diet improved economic efficiency of broiler production. CNM can be included up to 25% in broiler diets

Dehydrated cashew apple meal in the feeding of growing rabbits

Two trials were conducted aiming to determine the chemical composition, the digestibility of nutrients and energy from dehydrated cashew apple meal, as well as to evaluate the effects generated by including increasing levels (0, 10, 20, 30, 40 and 50%) of this ingredient in growing rabbit feed, on performance, carcass characteristics and economic evaluation. In the digestibility trial, were used 24 rabbits with 55 days of age, distributed in a completely randomized design with two treatments and twelve repetitions, being one reference feed and the other test feed, composed by 70% of the reference feed and 30% DCAM. The coefficients of the dry matter digestibility, crude protein and gross energy of the DCAM were, respectively, 67.79; 30.03 and 48.61%. The digestible dry matter, digestible protein and digestible energy, based on dry matter, were, respectively, 59.55%; 4.76% and 2,119.66 kcal/kg. In the second trial, 120 mixed breed rabbits were used, with an average of 45 days of age and weight 1143 ± 153g. The animals were distributed in a completely randomized design, with six treatments and ten repetitions with two rabbits of the same sex per cage. It was observed that the inclusion of DCAM did not affect (P > 0.05) the feed intake, but reduced (P < 0.05) the feed conversion efficiency, as well as a linear reduction in carcass yield. A quadratic effect on daily weight gain and the ratio meat/bone was observed, with better inclusion level estimated at 25.31 and 24.65%, respectively. The inclusion of DCAM linearly improved economic viability to the level of 50%, however not to harm the weight gain and the ratio meat/bone, it is recommended to include up to 25%

PARÂMETROS REPRODUTIVOS E DESENVOLVIMENTO PONDERAL DOS LÁPAROS DAS RAÇAS NOVA ZELÂNDIA E CALIFÓRNIA NO BRASIL

The experiment was carried for 12 months in the Rabbit Unit of Departamento de Zootecnia at the Universidade Federal do Ceará. The aim of this work was to evaluate the rabbit reproductive parameters and ponderable performance of the races New Zealand (NZ) and Califórnia(CA) , in Ceará, Northeast Brazil. Animals were fed with a commercial feed of 2500 kcal DE/kg for rabbit in reproduction. Thirty does (50% of each race) were distributed at random in experimental cages, such that each ¿treatment¿ (race) had 15 replications. Data were analyzed in a complete randomized design. Does were selected by weight and age, being included in the expeiment with 3,0 kg and 4,5 months of age, approximately. The male/female ratio was 1:10. Pregnancy check was done by palpation 15 days after mating. Reproductive management adopted was mating 10 days after delivery and weaning at 30 days of age (semi-intensive). Productivity in maternity was similar between races. Numeric productivity for both races was 31.3 rabbits weaned/cage/year. Does CA showed greatest maternal ability as compared with NZ does, with heavier offspring at birth, at 21 days, and at weaning. Finally, it is suggested that to produce a rabbit for slaughtering, it should use females CA with males NZ, in single or industrial mating