Fat Deposition in Broilers

Fisher, C.

doi:10.1016/b978-0-408-10864-5.50028-0

Cited by 46 publications

(34 citation statements)

References 81 publications

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“…The essential fatty acids play an important role in immunity, inflammation and blood clotting. Since essential fatty acids are not synthesized in the chicken's body, their presence in the body depends on both their presence in the diet, and their rate of oxidation in the tissues (Fisher, 1984). Therefore, with supplementations of the TA as an antioxidant, the breast muscle essential fatty acid profile can be protected under high temperature.…”

Section: Effects Of Tannic Acid On Broilersmentioning

confidence: 99%

Effects of Tannic Acid on Performance and Fatty Acid Composition of Breast Muscle in Broiler Chickens Under Heat Stress

Ebrahim

Liang

Jahromi

et al. 2015

Italian Journal of Animal Science

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One hundred twenty day-old broiler chicks (Cobb 500) were randomly assigned into 4 treatment groups to investigate the effects of tannic acid supplementation (TA) on fatty acid composition in breast muscle of broilers under chronic heat exposure conditions. Five pen replicates of 6 chicks each were assigned to each of the following 4 dietary treatments: i) basal diet containing no TA at 25°C (CL); ii) basal diet containing no TA at 35°C (CH); iii) basal diet supplemented with 1% TA at 25°C (TL); and iv) basal diet supplemented with 1% TA at 35°C (TH). At the end of the 5-week experiment, breast muscle samples were collected to examine the fatty acid composition. Results showed that temperature, TA and their interaction effect significantly decreased body weight gain and feed intake. In addition, feed conversion ratio (FCR) significantly increased under high temperature, and addition of TA under high temperature did not improve the FCR. The effects of temperature, TA and their interaction on the saturated and unsaturated fatty acids were not significant (P>0.05). However, monounsaturated fatty acids significantly reduced by adding TA to the diet. Generally, TA improved the fatty acid profile of breast muscle of broilers under heat stress in comparison to the heat stressed chickens, which did not receive TA. Hence, it seems that dietary TA supplementation can be applied as a biological antioxidant for poultry nutrition in hot climatic conditions.

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Section: Effects Of Tannic Acid On Broilersmentioning

confidence: 99%

Effects of Tannic Acid on Performance and Fatty Acid Composition of Breast Muscle in Broiler Chickens Under Heat Stress

Ebrahim

Liang

Jahromi

et al. 2015

Italian Journal of Animal Science

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“…Após 12 horas de jejum alimentar, três aves de cada tratamento foram pesadas e sacrificadas para a retirada do pâncreas, que foi pesado, congelado em nitrogênio líquido e armazenado a -80 o C. Para determinação do crescimento alométrico do pâncreas, foi utilizada equação descrita por Fisher (1984) A determinação da atividade da lipase foi feita por titulometria, segundo o método de Sarda & Desnuele (1958), realizada em triplicatas e velocidades iniciais constantes durante pelo menos 3 horas, assegurando-se hidrólise de substrato sempre inferior a 5%. A unidade de atividade enzimática de lipase foi definida e expressa como a quantidade de lipase que libera 1 mmol de ácido graxo por minuto, nas condições-padrão do teste.…”

Section: Ensaios De Digestibilidadeunclassified

Efeito da idade dos frangos de corte sobre a atividade enzimática e digestibilidade dos nutrientes do farelo de soja e da soja integral

Sakomura

Bianchi²,

Pizauro

et al. 2004

R. Bras. Zootec.

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RESUMO -Esse trabalho visou investigar o efeito da idade de aves sobre a digestibilidade dos nutrientes da soja integral extrusada (SIE), soja integral tostada à vapor (SITV) e farelo de soja com óleo (FSO) na produção de enzimas digestivas do pâncreas. Cinco ensaios de digestibilidade foram conduzidos com frangos de corte de uma, duas, três, quatro e seis semanas de idade. Foi utilizada a metodologia de coleta total de excretas. A atividade das enzimas amilase e tripsina pancreática aumentou linearmente com a idade das aves, assim como o crescimento alométrico do pâncreas. A maior taxa de crescimento ocorreu na segunda semana, coincidindo com a fase de maior aumento da atividade das enzimas digestivas. Entretanto, para a atividade da lipase, o efeito da idade foi diferente para cada alimento. Para aves alimentadas com SITV, a atividade dessa enzima cresceu linearmente com a idade, enquanto nas alimentadas com SIE, FSO e ração, o efeito foi quadrático. Os coeficientes de digestibilidade da matéria seca e extrato etéreo e os valores de energia metabolizável dos tipos de sojas variaram em proporções diferentes em função da idade. Também, observou-se correlação positiva entre a digestibilidade do extrato etéreo e a atividade de lipase. Os valores de energia metabolizável aparente corrigida (EMAn) e verdadeira corrigida (EMVn) determinados para a SIE apresentaram comportamento quadrático em função da idade, ocorrendo aumento da energia metabolizável (EM) até a 3 a semana de idade e diminuindo a partir da 4 a semana. Entretanto, a EM da SITV, FSO e da ração não foi afetada pela idade da ave. O aproveitamento da energia dos alimentos varia com a idade das aves, em função de sua dependência da atividade enzimática. Palavras-chave: digestibilidade dos nutrientes, enzimas pancreáticas, soja integral processada Effect of Age on Enzyme Activity and Nutrients Digestibility for Broilers Fed Soybean Meal and Full Fat SoybeanABSTRACT -This work aimed to investigate the effect of broilers age in the digestibility of nutrients in extruded and toasted full fat soybean (EFFS and TFFS) and soybean meal plus oil (SMO), and in the production of digestive pancreatic enzymes. Five digestibility assays were carried out with broilers of one, two, three, four , and six weeks of age. Total collected excreta methodology was applied. The activities of amylase and pancreatic trypsin enzymes increased linearly with the broilers age, as well as the allometric growth of the pancreas. The highest allometric growth ratio occurred in the second week, coincidentally with the period of increasing activity of the digestive enzymes. However, for lipase activity, distinct age affect was found for each feeds. For birds fed on TFFS, the enzyme activity increased linearly with age, while those fed on EFFS, SMO, and concentrate a quadratic effect was observed. The digestibility coefficients for dry matter and ether extract and the soybeans metabolizable energy (ME) varied at different proportions by age. A positive correlation between ether extract digestib...

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“…Poult. Sci., 9 (3): 144-154, 2015 At present, feed restriction (Fisher, 1984) and the inclusion of dietary additives that promote lean growth at the expense of fat deposition are the two commercially successful methods in use. According to the recent review by Fouad and El-Senousey (2014), both the methods have shown a decrease in body fat, but many reports have shown negative effect on body weight.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nonsaponifiable Fraction of Avocado Oil on Body Weight, Body Fat and Blood Lipid Profile of Broiler Chickens

D`Silva¹,

D'Souza²

2015

Asian J. of Poultry Science

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Accumulation of body fat is the major problem associated with initiation of various diseases in fast growing broiler chickens. Methods to restrict the accumulation of body fat have met with limited success. The objective of this study was to evaluate the effect of Avocado Non-Saponifiable Fraction (NSF) in broiler chicken (from day 14 for 27 days) on body fat accumulation, growth performance, organ weight and plasma lipid profile. Supplementation of avocado NSF for 27 days has resulted in positive changes in plasma lipid profile with 50% decrease of abdominal fat and 33.8% increase in body weight compared with normal control chickens. The Avocado NSF improved body composition in broilers through higher lean-to-fat ratio and hence has a potential to improve overall health profile and reduce metabolic diseases in chickens.

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Fat Deposition in Broilers

Cited by 46 publications

References 81 publications

Effects of Tannic Acid on Performance and Fatty Acid Composition of Breast Muscle in Broiler Chickens Under Heat Stress

Effects of Tannic Acid on Performance and Fatty Acid Composition of Breast Muscle in Broiler Chickens Under Heat Stress

Efeito da idade dos frangos de corte sobre a atividade enzimática e digestibilidade dos nutrientes do farelo de soja e da soja integral

Effect of Nonsaponifiable Fraction of Avocado Oil on Body Weight, Body Fat and Blood Lipid Profile of Broiler Chickens

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