Diet density during the first week of life: Effects on growth performance, digestive organ weight, and nutrient digestion of broiler chickens

Lamot, D.M.; Sapkota, D.; Wijtten, P.J.A.; Anker, I. van den; Heetkamp, M.J.W.; Kemp, B.; Brand, H. van den

doi:10.3382/ps/pey002

Cited by 14 publications

(5 citation statements)

References 21 publications

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“…He reported that increasing diet density resulted in lower liver weights compared to a regular diet density in broilers from 12 days of age onwards. Lamot et al [143] used dose-response design consisting of five dietary fat concentrations (3.5, 7.0, 10.5, 14.0, and 17.5%) through soybean oil inclusion. Amino acids, minerals, and the premix were increased at the same ratio as dietary fat.…”

Section: Effect Of Nutrient Densitymentioning

confidence: 99%

“…They found that both the absolute and relative liver weights decreased as dietary nutrient density increased at 7 days of age. In young broiler chickens, protein synthesis can use almost half of the retained energy [143,144]. High energy requirement for growth and protein retention may result in increased glycolysis in the liver and most of it will likely be used as fuel for growth, thus partly explaining a reduced liver weight in starter chickens fed high density diets.…”

Section: Effect Of Nutrient Densitymentioning

confidence: 99%

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Avian Liver: The Forgotten Organ

Zaefarian

Abdollahi

Cowieson

et al. 2019

Animals

193

112

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Despite having huge responsibilities in avian species, published reports on the influence of dietary factors and other possible constraints on the size, development and function of liver are limited. Consideration of the factors that could influence and alter liver function is therefore of critical relevance. In the current review, aspects of liver structure and function, and the influence of feed restriction, anti-nutritional factors, structural components and feed additives on liver are discussed. Effects of feed technology techniques such as thermal treatment and pelleting, feed particle size and whole grain feeding on the liver are also reviewed. A discussion of lipogenesis and lipid storage in poultry is presented to provide a better understanding and to differentiate the normal pathways of lipid metabolism from abnormal (i.e., disordered) pathways. The liver is the main site of fat synthesis in poultry, but under certain conditions, excessive fat can accumulate in the liver and cause problems. Factors contributing to the fatty liver syndrome are also examined.

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Section: Effect Of Nutrient Densitymentioning

confidence: 99%

Section: Effect Of Nutrient Densitymentioning

confidence: 99%

Avian Liver: The Forgotten Organ

Zaefarian

Abdollahi

Cowieson

et al. 2019

Animals

193

112

View full text Add to dashboard Cite

show abstract

“…However, Gao et al [30] explains that the extensive bacteria growth is not a normal balance state for the intestine and the increase of intestine mass may result from bacterial infections. Also, the increased density of the diets resulted in intestinal enlargement, explained as the adaptive response to cope with an increased nutrient concentration in the diet [31].…”

Section: Structural Parameters Of Gut Healthmentioning

confidence: 99%

Injection of Raffinose Family Oligosaccharides at 12 Days of Egg Incubation Modulates the Gut Development and Resistance to Opportunistic Pathogens in Broiler Chickens

Stadnicka,

Bogucka,

Stanek

et al. 2020

Animals

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The aim was to investigate the impact of an automatic in ovo injection of the raffinose family oligosaccharides (RFO) extracted from the seeds of Lupinus luteus L, on the chicken performance and resistance in a production environment. At day 12 of incubation, a total of 57,900 eggs (Ross 308) were divided into two groups: 1/ Control, injected with 0.9% NaCl and 2/ RFO group, injected with 1.9 mg/egg of the lupin seed extract, dissolved in 0.2 mL NaCl. The performance parameters, biochemical indices (lipid profile, hepatic parameters), gut histomorphology and duodenum structure, oxidative stability of the meat and microbiological counts of the major commensal microbiota species were analyzed. Mortality, body weight, and feed conversion ratio (FCR) were not affected. By day 42, several health indices were improved with RFO and were reflected in a beneficial lipid blood profile, increased villi surface and better combating opportunistic pathogens through reduction of Clostridia and decreased coccidia counts. The RFO increased meat oxidation, but only at the beginning of the storage. The RFO sourced from local legumes can be considered a promising prebiotic for broiler chickens. In ovo delivery of prebiotics and/or synbiotics should be further optimized as an important strategy for the earliest possible modulation of chicken resistance.

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“…The information on nutrients requirements is an essential key used in formulating diets to reach an optimum diet with a low cost. Formulating a high-density diet is usually considered a high-quality feed and produces better performance when fed to chickens (Lamot et al, 2019). Still, it will make the feed price expensive while formulating a diet with lower nutrients than the chickens required, which will eventually impair the performance of the chickens.…”

Section: Introductionmentioning

confidence: 99%

Performances of KUB Chickens Fed Diets with Different Nutrient Densities and BS4 Enzyme Supplementation

Sinurat¹,

Haryati²,

Herliatika³

2022

Trop. Anim. Sci. J.

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An experiment was conducted to study the effect of dietary enzyme supplementation (E) on the performance of KUB chickens fed different nutrient densities (ND). Diets with three densities: 70.7 g crude protein/Mcal or high (H), 66.1 g crude protein/Mcal or medium (M), and 59.3 g crude protein/ Mcal or low (L), were formulated and supplemented with or without enzyme. Diets were given in four feeding programs, i.e. , H-M-L, H-M-M, M-M-L, and M-L-L during the starter (1-28 d), grower (29-56 d), and finisher (57-84 d) periods, respectively. Each treatment was replicated five times. Bodyweight gain (BWG), feed intake, and FCR were measured each period. At the end of the trial, carcass yield and internal organs were measured. Results of the experiment (1-84 d period) showed that the feed intake was significantly affected by ND. Chickens fed the H-M-L diets have the highest feed intake, while the lowest was found in chickens fed M-M-L diets. A significant interaction was found in the FCR. The best FCR was found in chickens fed the H-M-M diets without enzymes, but the best FCR was found on the M-M-L diets with enzymes. Livability, carcass yield, abdominal fat, liver, proventriculus, and gizzard weights were not affected by the treatments. The jejunum sizes of chickens were significantly longer when fed the low-density diet than those fed the higher nutrient density diet. The ileum sizes of chickens were significantly shorter than chickens fed the diet without enzymes. The highest income over feed cost was achieved when chickens were fed the M-M-L diets supplemented with enzymes. It is concluded that the best performance of growing KUB chickens was obtained when fed M-M-L diets supplemented with BS4 enzymes (30 Units of saccharification/kg diet) and when fed H-M-M diets without enzyme supplementation.

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Diet density during the first week of life: Effects on growth performance, digestive organ weight, and nutrient digestion of broiler chickens

Cited by 14 publications

References 21 publications

Avian Liver: The Forgotten Organ

Avian Liver: The Forgotten Organ

Injection of Raffinose Family Oligosaccharides at 12 Days of Egg Incubation Modulates the Gut Development and Resistance to Opportunistic Pathogens in Broiler Chickens

Performances of KUB Chickens Fed Diets with Different Nutrient Densities and BS4 Enzyme Supplementation

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