Desempenho, morfometria duodenal e histopatologia do fígado de frangos de corte alimentados com dietas contendo diferentes níveis de selênio orgânico em condições de estresse calórico

Carvalho, Genilson Bezerra de; Lopes, João Batista; Silva, Sandra Regina Gomes da; Dourado, Leilane Rocha Barros; Miranda, Dayane Francisca Higino; Costa, Francisco Assis Lima

doi:10.1590/s1519-99402015000200011

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…The results of the literature regarding the performance of broilers supplemented with chelated or inorganic sources are inconsistent [25][26][27][28][29]. In experimental conditions, the source of minerals used may not affect the productive performance of broiler chickens.…”

Section: Discussionmentioning

confidence: 99%

Mineral supplementation: effects on bone integrity and intestinal morphometry of broiler chickens challenged with Eimeria sp

et al. 2019

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The objective of this study was to evaluate the effect of supplementation of organic minerals on the productive performance and bone quality of broilers from 1 to 21 days of age and the intestinal health in situations of enteric challenge from 21 to 28 days of age. In a completely randomized design, with two treatments composed for minerals as sulfate and Carbo-Amino-Phospho-Chelate (CAPC), a total of 900 male broiler chicks were allocated to nine replicates and 18 experimental units with 50 birds each. 640 birds at 21 days of age were transferred to experimental cages and distributed in a completely randomized design, in factorial 2 × 2 (minerals as sulfate and CAPC × with and without enteric challenge), obtaining 4 treatments with 16 replicates and 10 birds each. In the same day of change, the group of challenged broilers received a commercial vaccine for coccidiosis that covers the Eimeria sp. At 7 days, the supplementation with CAPC minerals resulted in higher (p<0.05) weight gain and better feed conversion in relation to the inorganic source. The deposition of minerals evaluated in the tibia of broilers was not influenced (p>0.05) by the source of minerals, with the exception of Cu and Mn, whose deposition was greater (p<0.05) in the bones of poultries supplemented with inorganic source of minerals. There was higher (p<0.05) length and width of the villi and increase in the ratio villus: crypt in response to the intestinal spoliation with CAPC supplementation when compared to the inorganic source.

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Section: Discussionmentioning

confidence: 99%

Mineral supplementation: effects on bone integrity and intestinal morphometry of broiler chickens challenged with Eimeria sp

et al. 2019

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Características produtivas, carcaça, cortes e resposta imune humoral de frangos de corte alimentados com diferentes fontes de óleo e vitamina E

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et al. 2017

Arq. Bras. Med. Vet. Zootec.

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 RESUMOA adição de óleos na dieta de frangos de corte proporciona muitas vantagens, visto que, dependendo do perfil de ácidos graxos, pode melhorar o desempenho e atuar como estimulante do sistema imune. Assim, este estudo teve como objetivo avaliar as características produtivas, o rendimento de carcaça, os cortes e a resposta imune humoral de frangos de corte alimentados com diferentes fontes de óleos e vitamina E. Foram utilizados 312 pintainhos de corte machos da linhagem Cobb com um dia de idade, distribuídos em delineamento inteiramente ao acaso, com oito repetições compostas de 13 aves por parcela experimental. Os tratamentos experimentais consistiram em óleo de soja, óleo de canola e óleo de canola mais adição de vitamina E. As variáveis analisadas foram ganho de peso, consumo de ração, conversão alimentar, rendimento de carcaça, cortes comerciais e resposta imune humoral. Os resultados obtidos mostram que houve diferença significativa no desempenho somente na fase pré-inicial, quando as aves que receberam o tratamento com óleo de canola e vitamina E apresentaram piores ganhos de peso. Não foram observadas diferenças significativas para as outras variáveis analisadas. Conclui-se que a utilização de diferentes fontes lipídicas associadas ou não à vitamina E não afeta as características produtivas de carcaça, cortes e resposta imune humoral em frangos de corte em relação ao uso de óleo de soja.Palavras-chave: aves, óleo de canola, óleo de soja, tocoferol ABSTRACT Oil inclusion in poultry diets provides many advantages and according to the fatty acid profile it is

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Supplementation of minerals and vitamins in broiler diets: effect on performance and bone quality

et al. 2021

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Differences in growth rate and carcass composition of broilers may require higher levels of vitamins and minerals with higher bioavailability. The aim of this trial was to supplement commercial diets for broilers with optimized levels of vitamins and with different mineral sources to assess the effect on performance, carcass yield and bone quality. A total of 1,800 Cobb Slow male broiler chicks were distributed into a 2 x 2 factorial completely randomized design (vitamin programs - optimized and commercial versus mineral sources - inorganic [sulfates] and carbo-amino-phospho-chelate, CAPC). The vitamin D3 metabolite, 25 (OH) D3, was included in the optimized vitamin premix. Birds and feed leftovers were weekly weighed. Data was subjected to statistical analysis using the GLM procedure of SAS software. Supplementing diets with a combination of optimized vitamin programs and CAPC as mineral source resulted in better feed conversion at 42 days of age (P<0.05). Supplementation with CAPC minerals resulted in a lower red index (*a) (P<0.05) in the adjacent thigh muscles and drumstick bones of broilers when thawed and roasted, indicating less bone porosity. The inclusion rates of mineral sources with higher bioavailability can be reduced, decreasing the negative impact of mineral excretion and the polluting effect on the environment.

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Desempenho, morfometria duodenal e histopatologia do fígado de frangos de corte alimentados com dietas contendo diferentes níveis de selênio orgânico em condições de estresse calórico

Cited by 3 publications

References 10 publications

Mineral supplementation: effects on bone integrity and intestinal morphometry of broiler chickens challenged with Eimeria sp

Mineral supplementation: effects on bone integrity and intestinal morphometry of broiler chickens challenged with Eimeria sp

Características produtivas, carcaça, cortes e resposta imune humoral de frangos de corte alimentados com diferentes fontes de óleo e vitamina E

Supplementation of minerals and vitamins in broiler diets: effect on performance and bone quality

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