Animal Science and Zoology, Food Science, Food Animals, Small Animals
27
Scopus Publications
Scopus Publications
Energy-reduced diets supplemented with xylanase, Bacillus sp., and yeast wall maintain bone parameters, gut morphometry, economic indices, and performance of pigs Lucas Rodrigo Justino, Christiane Silva Souza, Bruno da Silva de Vasconcelos, Jessica Amaral Costa, Débora Vaccari Quaresma, et al. Revista Brasileira De Zootecnia, 2024 - This study aimed to investigate the effects of xylanase (Xyl) individually or in combination with B. subtilis and B. licheniformis associated or not with yeast cell wall in pig diets with a reduction of 100 kcal/kg of metabolizable energy (ME) content. Pig performance, bone parameters, intestinal morphometry, and bioeconomic indices were evaluated. A total of 75 pigs (25 females and 50 barrows; 25.02±3.21 kg) obtained from crossing Large White × Landrace were used. The experimental design consisted of randomized blocks, with five treatments and five blocks, totaling 25 experimental units subjected to treatments: basal diet (B); basal diet with reduction of 100 kcal/kg of ME (BEM); BEM with supplementation of xylanase (0.01%; BX); BX with supplementation of direct-fed microbials (composed of B. subtilis and B. licheniformis ; 0.02%; BXM); and BX supplemented with 0.10% of symbiotic (which includes B. subtilis , B. licheniformis, and yeast cell wall; BXS). There were no differences in bone parameters. The BEM diet resulted in a lower villus height:crypt depth ratio in the jejunum than that seen upon using the BXS diet as feed. In the first period, pigs fed BEM diet had a 12% higher average daily feed intake than those fed the BXM diet. There were no differences in the pig performance during the second period. Over the total period, pigs fed BEM diet had greater FCR compared with pigs fed BXM diet. The inclusion of feed additives in diets with reduced ME content contributes to the maintenance of performance and characteristics of the metacarpus and jejunum of growing pigs and provides better bioeconomic
Requirement for digestible lysine in Nile tilapias (Oreochromis niloticus) with live weight between 500 and 600 g José Claudio Bezerra Muniz Junior, Suzana Linhares Haidamus, Noédson de Jesus Beltrão Machado, Felipe Dilelis, Ronner Joaquim Mendonça Brasil, et al. Acta Scientiarum Animal Sciences, 2023 The present study was carried out with the objective of determining the requirements for digestible lysine in Nile tilapia during the 500 to 600 g live weight stage. Isocaloric and isonitrogenous diets were tested with increasing amounts of digestible lysine. L-lysine HCl (78%) were used to replace glutamic acid at increasing levels, resulting in treatments of 9.3, 12.3, 15.3, 18.3 and 21.3 g kg-1 of digestible lysine. Three hundred Nile tilapias with an average weight of 519 ± 27.23 g were used and distributed among 25 tanks. The physical and chemical parameters of the water were pH, dissolved oxygen, salinity, conductivity and temperature. The mortality rate was registered daily. Two slaughters were performed at 28 and 50 days after the beginning of the experiment. It was estimated that an amount of 13.1 g kg-1 of digestible lysine was ideal for obtaining higher WG. Fish slaughtered after 50 days, the digestible lysine requirements were determined to be 14.5 g kg-1 for the lowest carcass humidity and 14.6 g kg-1 for the greatest carcass ethereal extract. Nile tilapias with live weight between 500 and 600 grams require 13.1 g kg-1 of digestible lysine in the diet for greater WG (90.53 g) and better FCR (2.55).
Broiler chick performance using Saccharomyces cerevisiae yeast cell wall as an anti-mycotoxin additive Vinícius Machado dos Santos, Gabriel da Silva Oliveira, Cristina Amorim Ribeiro de Lima, Fernando Augusto Curvello Czech Journal of Animal Science, 2021 The objective of this study was to evaluate the effects of using the Saccharomyces cerevisiae yeast cell wall (YCW) as an aflatoxin B1 (AFB1) adsorbent in broiler chicken feed on performance and carcass characteristics. The present study used a randomized complete block with four treatments in a 2 (with or without AFB1) × 2 (with or without YCW) factorial design. No interaction effect (P > 0.05) between AFB1 and YCW was found on the studied performance variables. The addition of YCW to the diets stimulated the feed intake of chickens during 1–21 days of age. However, YCW did not significantly increase (P > 0.05) weight gain nor did it change feed conversion. The presence of AFB1 in the diet did not affect (P > 0.05) performance parameters. The addition of YCW to the feed containing AFB1 significantly increased (P < 0.05) the post-fasting live weight (781.12 g), chilled carcass weight (554.41 g), and leg weight (163.34 g) compared to feed without AFB1 and YCW (764.84 g; 533.41 g; 161.88 g), feed with only YCW (764.22 g; 546.87 g; 159.34 g), and feed with only AFB1 (735.41 g; 510.56 g; 152.75 g). In conclusion, YCW effectively reduced some of the deleterious effects of AFB1 in broilers.
Orange essential oil in the diet of broilers: performance, organ biometrics, bone characteristics, and intestinal morphometry Christiane Silva Souza, Flávio Medeiros Vieites, Lucas Rodrigo Justino, Marcos Fabio de Lima, Amália Saturnino Chaves, et al. Revista Brasileira De Zootecnia, 2021 Growth performance, organ biometrics, bone characteristics, and intestinal morphometry were evaluated in broilers fed a diet containing orange (Citrus sinensis L.) essential oil. A completely randomized design was used, with five treatments with orange essential oil (0, 100, 200, 300, and 400 mg kg−1 diet) and six replications with 20 birds per experimental unit. In the pre-starter phase, feed intake and weight gain of all birds linearly increased, while feed conversion decreased with the addition of orange essential oil [...]
Feed incorporated with the macroalgae Kappaphycus alvarezii for broiler chickens in the starter phase Sônia Maria de Brito Marques Quirino, Débora Vaccari Quaresma, Felipe Dilelis, Leonardo Willian de Freitas, Cleriston Andrade Machado, et al. Revista De Ciencias Agroveterinarias, 2020 Foi realizado um experimento para avaliar a digestibilidade de nutrientes, o desempenho zootécnico e parâmetros de qualidade óssea de frangos de corte alimentados, de um a 21 dias de idade, com rações contendo níveis crescentes da macroalga Kappaphycus alvarezii. O total de 150 frangos da linhagem Cobb 500® foram distribuídos em um delineamento experimental inteiramente casualizado, com cinco tratamentos, seis repetições e cinco aves por repetição. O ensaio de metabolismo utilizado foi o de coleta total de excretas, do 15º ao 20º dia. Os parâmetros ósseos avaliados foram o índice de Seedor, resistência a quebra e cinzas ósseas. A macroalga seca e moída foi adicionada às rações de frango de corte nos valores de 0%, 0,5%, 1,0%, 1,5% e 2,0%; em substituição ao inerte caulim. A adição de Kappaphycus alvarezii não influenciou os parâmetros de desempenho, os parâmetros de qualidade óssea e os coeficientes de retenção de cinzas e do fósforo. Na avaliação da digestibilidade das rações foram observadas reduções (p<0,05) na energia metabolizável aparente e nos coeficientes de digestibilidade da matéria seca, da proteína bruta e da energia bruta com a inclusão da alga. A alga Kappaphycus alvarezii apresenta potencial como aditivo nas rações de frangos de corte, mas deve ser considerada a possível diminuição da digestibilidade da dieta.
Effects of xylanase and probiotic supplementation on broiler chicken diets Noédson de Jesus Beltrão Machado, Frank George Guimarães Cruz, Ronner Joaquim Mendonça Brasil, João Paulo Ferreira Rufino, Leonardo Willian de Freitas, et al. Revista Brasileira De Zootecnia, 2020 The objective of the present study was to evaluate the effects of xylanase and probiotic supplementation on the performance, carcass characteristics, intestinal pH, intestinal viscosity, and ileal microbiota of broiler chickens fed diets containing wheat bran. The study animals were kept in metal cages, and the study was performed using a completely randomized design, with four treatments, six birds per treatment, and six replicates. The four treatments included a control group, a probiotic-supplemented group, a xylanase-supplemented group, and a [...]
Metabolizable energy of rice bran, cottonseed meal and wheat bran for slow-growing broilers at two ages Felipe Dilelis, Augusto Vidal da Costa Gomes, Cristina Amorim Ribeiro de Lima, Débora Costa Barroso Corrêa, Tulio Leite Reis Ciencia Animal Brasileira, 2019 The aim of this study was to evaluate bromatological composition and metabolizable energy values of cottonseed meal, rice meal, and wheat bran when provided to slow growth rate broilers at different ages. Energy values of 15- to 25- and 35- to 45-day-old broilers were determined by the total feces collection method using two digestibility bioassays. The birds were distributed in a completely randomized experimental design to evaluate the age effect, with six replicates of 10 chickens each, for each ingredient. Values of apparent metabolizable energy adjusted by nitrogen balance (kcal/kg), for the first and second ages were: 1,255 and 1,564 for cottonseed meal, 3,124 and 3,301 for rice meal, and, 2,211 and 2,383 for wheat bran, respectively. The ingredients showed some variations regarding chemical composition and energy values, which were higher (P < 0.05) in older broiler chickens.
Oregano essential oil in the diet of broilers: Performance, carcass characteristics, and blood parameters G Eler, A.V.C. Gomes, B.S. Trindade, L.S.L. Almeida, F Dilelis, et al. South African Journal of Animal Science, 2019 Efficacy of the phytogenic feed additive oregano essential oil (OEO) (Origanum vulgare L.) was assessed as an alternative to an antibiotic as a growth promoter (AGP) in broiler diets. Three hundred male broiler chicks were assigned to five treatments, which consisted of diets with different levels of OEO (300, 600, and 900 mg/kg of diet), a negative control, and a positive control. Broiler performance was evaluated from 1 to 21 and 1 to 39 days old. From 1 to 39 days old, the broilers of the negative control group presented lower feed intake than those fed OEO300. No significant effect was observed on weight gain. The greatest feed conversion ratio occurred in the positive control group. Broilers treated with OEO300 had greater carcass yield than those in the positive control group. The haemogram, leukogram, and heterophil/lymphocyte ratio were positively influenced by OEO300. Red blood cell and leukocyte counts increased in a dose-dependent manner in broilers fed OEO-supplemented diets, while broilers in the positive control group had the lowest levels of haematocrit, mean corpuscular haemoglobin concentration, and plasma protein. Differential leukometry revealed lymphocyte numbers were increased with OEO treatment and reduced in the positive control group. For hepatic and renal metabolism, the broilers in the positive control group exhibited the greatest serum activities of aspartate aminotransferase, alanine aminotransferase, gamma-glutamyl transferase, and alkaline phosphatase. Although more studies on its efficacy are needed, OEO at 300 mg/kg may be used as a phytogenic additive in broiler diets, especially those without AGP. Keywords: antibiotic as growth promoter, immune system, phytogenic feed additive
Oregano (Origanum vulgare L.) essential oil in the diet of broilers as balancing the intestinal microbiota Revista Brasileira De Medicina Veterinaria, 2015
Piperine as a phytogenic additive in broiler diets Verônica da Silva Cardoso, Cristina Amorim Ribeiro de Lima, Marco Edílson Freire de Lima, Luis Eduardo Gomes Dorneles, Maria das Graças Miranda Danelli Pesquisa Agropecuaria Brasileira, 2012
Performance and carcass characteristics of broilers fed diets of different physical forms Revista Brasileira De Zootecnia, 2011
Piperine oral administration on broiler' chikens Verônica da Silva Cardoso, Cristina Amorim Ribeiro de Lima, Marco Edílson Freire de Lima, Luis Eduardo Gomes Dorneles, Walter Leira Teixeira Filho, et al. Ciencia Rural, 2009
