Efeitos do período de jejum entre o nascimento e o alojamento de pintos de corte e da adição de óleo à ração sobre o desenvolvimento do trato gastrintestinal e concentração de lipase

Cançado, S.V.; Baião, N.C.

doi:10.1590/s0102-09352002000600011

Cited by 9 publications

(3 citation statements)

References 14 publications

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“…During the first hours of life, the nutrient demands of birds are directed towards the growth of organs from the gastrointestinal tract; this is because these organs will support the growth of other tissues with nutrient supply BAIÃO, 2002;MAIORKA et al, 2003). The absence of nutrients in early feeding impairs the digestive tract development and, hence, the body weight; it occurs because an intensive early growth of birds is related to the increase of visceral organs, mainly intestine.…”

Section: Introductionmentioning

confidence: 99%

Development of digestive organs of female broilers under varying post-hatch fasting times

Ribeiro¹,

Freitas²,

Clemente³

et al. 2018

SCA

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This study aimed to evaluate the effect of post-hatch fasting time on the weights of body and digestive organs of chicks. Fertile eggs from 62-week-old broiler breeders (Cobb Fast lineage) were incubated and, after hatching, female chicks were randomly divided into six treatments, which corresponded to fasting periods (0, 6, 12, 24, 48, and 72 hours), with 40 chicks per treatment. At 01, 03, 06, and 10 days after hatching, measurements of body weight; residual yolk weight; relative weights of proventriculus + gizzard, intestine + pancreas and liver; and intestine total length were made. At 6 days of age, the chicks submitted to post-hatch fasting, for up to 12 hours, demonstrated greater development, with body weights higher than the other birds. Yet, when fed, no compensatory gain was observed and, at 10 days of age, the birds submitted to 48- and 72-h fasting remained with a lower body development. Intestine growth was also compromised by post-hatch fasting, being reduced in both weight and length. A post-hatching fasting of up to 24 hours did not interfere with the weights of body and digestive organs of 10-day-old female broiler chickens. However, 48- and 72-h post-hatch fastings affected adversely the weight and growth of digestive organs in the birds.

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Section: Introductionmentioning

confidence: 99%

Development of digestive organs of female broilers under varying post-hatch fasting times

Ribeiro¹,

Freitas²,

Clemente³

et al. 2018

SCA

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“…At seven days of age, the relative weights of liver and pancreas were positively correlated with live weight (Figure 2). Cançado and Baião (2002) described that most part of liver growth occurs during the first week, and the growth rate of the pancreas decreases linearly as the bird ages. As can be seen in Figure 3, there was a negative correlation between bird weight and the relative weight of the pancreas at 28 days of age.…”

Section: Resultsmentioning

confidence: 99%

Relative weight and length of digestive tract and intestinal histomorphometric measurements of slow-growing broilers of different genotypes

Assis¹,

Leandro²,

Café³

et al. 2021

Semina: Ciênc. Agrár.

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An experiment was conducted to investigate the development of the digestive system in slow-growing broilers of different strains. The experiment involved a total of 544 one-day-old chicks, 136 of each of four genotypes, namely, Label Rouge Pesadão, Label Rouge Pescoço Pelado, Carijó and Carijó Pescoço Pelado. The birds were distributed in a completely randomized design with four treatments (genotypes) and eight replicates of 17 animals each. Live weight, digestive tract development and intestinal histomorphometric measurements were evaluated at different ages. Significant differences (p < 0.05) were observed between the strains for live weight, relative weight and length of digestive tract organs and intestinal histomorphometric measurements at one, seven and 28 days of age. The Carijó strain showed greater weight and development of digestive organs than the Carijó Pescoço Pelado strain. There was a difference (p < 0.05) for histomorphometric measurements of the small intestine between the strains at the evaluated ages. The Carijó Pescoço Pelado and Label Rouge Pescoço Pelado strains showed higher villi and higher villus:crypt ratios in the duodenum, jejunum and ileum. The slow-growing strains differ in performance regarding the relative weights and lengths of digestive tract organs and intestinal histomorphometric measurements.

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“…O jejum pós-eclosão prejudica o peso dos pintos (RICCARDI, 2009) e o ganho de peso dessas aves (BAIÃO; CANÇADO, 1998;BAIÃO, 2002). Leandro et al (2010) estudaram o efeito de inoculação de prebiótico ou butirato de sódio na fase embrionária e do período de jejum pós-eclosão de 36 h. avaliaram o efeito de hidratantes (eletrólitos) sobre o período de jejum de 24 h a 48 h. Em ambas as pesquisas, os pintos submetidos a períodos de jejum pós-eclosão apresentaram menores pesos, mesmo nos tratamentos em que receberam suplementação na fase embrionária ou na fase pós-eclosão.…”

Section: Introductionunclassified

Ambiência pré-porteira: o tempo de espera no incubatório e sua influência sobre o desempenho inicial de frangos de corte

Camargo¹

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Efeitos do período de jejum entre o nascimento e o alojamento de pintos de corte e da adição de óleo à ração sobre o desenvolvimento do trato gastrintestinal e concentração de lipase

Cited by 9 publications

References 14 publications

Development of digestive organs of female broilers under varying post-hatch fasting times

Development of digestive organs of female broilers under varying post-hatch fasting times

Relative weight and length of digestive tract and intestinal histomorphometric measurements of slow-growing broilers of different genotypes

Ambiência pré-porteira: o tempo de espera no incubatório e sua influência sobre o desempenho inicial de frangos de corte

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