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 4 publications

(3 citation statements)

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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“…Fasting causes changes that can compromise digestive activity (Ostaszewska et al 2006), causing a reduction in villi height and length and reducing the area of epithelium, which, as a consequence, decreases absorption capacity (Shaibani et al 2013). The reduction in the length and perimeter of the villi indicates a lack of food in the digestive tract (Green and McCormick 1999), while the increase in these measures can be understood as an improvement in the integrity of the mucosa (Carvalho et al 2011), since the balance between renewal and loss of cells, which normally occurs in the intestine, maintain villi size and digestive and intestinal absorption capacities (Ferreira et al 2014).…”

Section: Intestinal Villimentioning

confidence: 99%

Physiological responses to long fasting followed by refeeding in juveniles of pirapitinga, Piaractus brachypomus

PORTO,

ASSIS,

AMORIM

et al. 2023

Acta Amaz.

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For many fish species, prolonged fasting is part of their life cycle, as there are seasonal fluctuations in the quantity and quality of food available in their natural habitat. These animals use endogenous reserves during periods of food scarcity and recover when resources become available again. We evaluated the effect of a prolonged fasting period on indicators of body reserve use, growth performance and intestinal integrity of the Amazonian serrasalmid Piaractus brachypomus. We distributed 66 juveniles (68.6 ± 2.2 g) in 11 tanks. The treatment consisted of 30 days fasting followed by 45 days refeeding and the control of 75 days normal feeding with 5 replicates (one tank with six fish). The six individuals in the 11th tank were used for baseline measurements. Blood parameters, muscle lipid concentration, hepatosomatic and mesenteric fat indices, somatic growth parameters and intestinal villi morphology were measured every 15 days. Glucose, triglycerides, cholesterol, total protein, the mesenteric fat and hepatosomatic indices, weight gain, specific growth rate, condition factor and total biomass decreased significantly during fasting compared to the control, but all except body condition recovered during refeeding. The length and perimeter of the intestinal villi was significantly lower during fasting compared to the control. The feeding protocol allowed P. brachypomus to mobilize part of their body reserves during fasting, however, in general, refeeding was sufficient to restore their body needs and growth performance compatible with that of continuously fed animals.

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“…Studies on mineral supplementation of broiler diets do not always show consistent results, especially in relation to performance indices (25,26) . However, most results indicate that minerals supplied in more bioavailable forms are effective and can advantageously replace inorganic forms.…”

Section: Resultsmentioning

confidence: 96%

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 4 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

Physiological responses to long fasting followed by refeeding in juveniles of pirapitinga, Piaractus brachypomus

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

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