Digestive system development in post-hatch poultry

Jin, S.; Corless, Amy; Sell, J. L.

doi:10.1079/wps19980023

Cited by 106 publications

(67 citation statements)

References 51 publications

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“…The nutritional profile of the egg powder included in the starter diet in the present experiment is similar to that consumed by the embryo, promoting the continuous growth of the chicks. There is a strong relationship between initial body weight of chicks and their subsequent performance (Jin et al, 1998;Noy & Sklan, 1999;Madsen & Sorensen, 2004). Most feedstuffs commonly included in pre-starter and starter broiler diets, such as cereals and protein meals, have low digestibility and nutrient availability for chicks, as their digestive system is still immature (Madsen & Sorensen, 2004).…”

Section: Discussionmentioning

confidence: 99%

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Performance, Intestinal Morphology and Microbiology of Broiler Chickens Fed Egg Powder in the Starter Diet

Esmailzadeh

Saifeddine

Sadeghi

et al. 2016

Rev. Bras. Cienc. Avic.

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The effect of egg powder inclusion in the pre-starter diet (1-7 days of age) on the performance, and intestinal morphology and microbiology of male broiler chickens was evaluated in a completely randomized design. Starter diets with equal metabolizable energy and crude protein levels were formulated to contain 0, 20, 40, or 60 g egg powder/kg diet. Results showed that body weight, feed intake, feed conversion ratio, and European efficiency index were positively affected (p≤0.05) by egg powder inclusion in the starter diet. Inclusion of 40 g egg powder/kg diet in the starter diet promoted the best performance results. Jejunal villus height and villus to crypt ratio increased (p≤0.05) and intestinal length decreased (p≤0.05) as a result of egg powder inclusion in the starter diet. Egg powder inclusion in the starter diet reduced (p≤0.05E. coli counts, but increased (p≤0.05) lactic acid bacteria counts in the small intestine. The results obtained in the present study indicate that the inclusion of 40 60 g egg powder/kg of starter diet g improved the performance and intestinal health of broilers.

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Section: Discussionmentioning

confidence: 99%

“…In the first week after hatch, chick's digestive system is not fully developed, and the utilization of common feed ingredients, such as cereals and plant protein sources are limited . During this period, the digestive system develops at a very fast rate, and which suffer significant size, weight, and morphology changes (Jin et al, 1998;.…”

Section: Introductionmentioning

confidence: 99%

Performance, Intestinal Morphology and Microbiology of Broiler Chickens Fed Egg Powder in the Starter Diet

Esmailzadeh

Saifeddine

Sadeghi

et al. 2016

Rev. Bras. Cienc. Avic.

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“…Assim, com o objetivo de dar suporte ao seu crescimento, as aves necessitam adquirir rápida capacidade de absorver nutrientes externos (Jin et al, 1998). Iji et al (2001) comentaram que a entrada de nutrientes do saco vitelino e da dieta exógena no intestino delgado serve como estímulo ao crescimento e desenvolvimento do trato gastrintestinal (TGI) e, conseqüentemente, das funções de digestão e absorção.…”

Section: Introductionunclassified

Diferentes fontes de proteína na dieta pré-inicial de frangos de corte

Longo¹,

Menten²,

Pedroso³

et al. 2005

R. Bras. Zootec.

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RESUMO -Objetivou-se, com este estudo, determinar o valor de energia metabolizável aparente corrigida (EMAn) de ingredientes protéicos alternativos, para frangos de corte na fase pré-inicial, e avaliar os efeitos da utilização desses ingredientes na primeira semana de vida de frangos sobre o desempenho e o desenvolvimento do trato gastrintestinal (TGI). No ensaio de metabolismo, 288 aves (4 a 7 dias de idade) foram distribuídas em seis tratamentos (uma dieta-referência e cinco dietas com inclusão dos ingredientes-teste: isolado protéico de soja [IS], ovo em pó [OP], plasma sangüíneo [PS], farelo de glúten de milho [GM] e levedura seca [LS]) e quatro repetições de 12 aves. Na avaliação do desempenho e do TGI, 624 aves foram alojadas em baterias com seis tratamentos e quatro repetições de 26 aves. Os tratamentos consistiram em: 1 -dieta de milho e farelo de soja, 2 -dieta de milho e farelo de soja + IS, 3 -dieta de milho e farelo de soja + OP, 4 -dieta de milho e farelo de soja + PS, 5 -dieta de milho e farelo de soja + GM e 6 -dieta de milho e farelo de soja + LS. As aves foram submetidas aos tratamentos de 1 a 7 dias de idade. Aos 1, 4 e 7 dias de idade, as aves foram abatidas para mensuração dos órgãos do TGI. A EMAn dos ingredientes foi de 2.110, 5.095, 3.831, 3.374 e 2.037 kcal/kg (na matéria natural) para IS, OP, PS, GM e LS, respectivamente. De maneira geral, o desempenho das aves de 1 a 7 dias de idade foi afetado pelos diferentes tratamentos, mas esse efeito não persistiu até os 21 dias. As diferentes fontes de proteína afetaram o desenvolvimento do TGI, mas esses efeitos não explicam o desempenho das aves.Palavras-chave: desempenho, dieta pré-inicial, energia metabolizável, frangos de corte, proteína, trato gastrintestinal Different Sources of Protein in the Diet of Newly Hatched ChicksABSTRACT -The purpose of this study was to determine the N-corrected apparent metabolizable energy (EMAn) of alternative protein ingredients, for newly hatched chicks, and to evaluate the effects of the utilization of these ingredients in the first week broiler feed, on the performance and gastrointestinal tract (TGI) development. In the metabolism trial, 288 male chicks from 4 to 7 days were allotted to a completely randomized design with six treatments (a reference diet and five diets with inclusion of the test ingredients) and four replicates of 12 birds. The ingredients evaluated were: isolated soy protein (IS), dried whole eggs (OP), blood plasma (PS), corn gluten meal (GM) and dried sugar cane yeast (LS). To evaluate the performance and TGI, 624 birds were allocated in brooder batteries with six treatments and four replicates of 26 birds. The treatments were: 1 -corn and soybean meal diet, 2 -corn and soybean meal diet + IS, 3 -corn and soybean meal diet + OP, 4 -corn and soybean meal diet + PS, 5 -corn and soybean meal diet + GM and 6 -corn and soybean meal diet + LS. The birds received the treatments only from 1 to 7 days. Birds were sampled at 1, 4 and 7 days of age in order to evaluate the TGI organs. The EMAn of...

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“…Pinchasov (1991) and Noy & Sklan (1999) had also confirmed that inaccessibility of chicks to feed and water in the first days of life, decreased body weight and other body performance. In contrast, shortening the time of deprivation in post hatched chicks, improved body growth and developed intestine, pancreas and immune system (Jin et al, 1998;Madsen et al, 2004). It has been suggested that an accumulation of nutrients in crop of chicks may contribute in the development of digestive system even before arriving to industrial farm (Bhanja et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effects of post-hatch nutrition of arginine, lysine, methionine and threonine on performance and intestinal morphology in broiler chickens

Sadrzadeh¹,

Hassanpour²,

Hamzekolaei³

et al. 2015

BJVM

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To investigate the effects of post-hatch nutrition of arginine, lysine, methionine and threonine on performance and intestinal morphology of broilers, 180 day-old Ross-308 were assigned to 6 treatments. Chickens were provided post-hatch (48 h) feeding of each amino-acid in 4 groups. Chickens in other 2 treated groups received no feed and water (fasting group) or just water (watering group). On day 14, performance parameters were determined, and then all chickens from each treatment were killed. After weighing body organs, the length of segments of small intestine were measured and prepared for evaluation of intestinal morphology. The mean body weight and FCR between watering, fasting, methionine and threonine groups did not differ while they all were greater than lysine fedchickens (P<0.05). In comparison with other groups, the lamina propria thickness of duodenum and ileum were greater in methionine and threonine groups, and in jejunum it was more in methionine group (P<0.05). The sum of measured villus surface area was higher and lower in threonine and lysine groups respectively (P<0.05). In conclusion, among the 4 amino acids, post-hatch feeding of threonine has beneficial effects especially on the growth of intestine. In contrast, lysine has adverse effects on the body performance and intestinal morphology.

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Digestive system development in post-hatch poultry

Cited by 106 publications

References 51 publications

Performance, Intestinal Morphology and Microbiology of Broiler Chickens Fed Egg Powder in the Starter Diet

Performance, Intestinal Morphology and Microbiology of Broiler Chickens Fed Egg Powder in the Starter Diet

Diferentes fontes de proteína na dieta pré-inicial de frangos de corte

Effects of post-hatch nutrition of arginine, lysine, methionine and threonine on performance and intestinal morphology in broiler chickens

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