Effects of nonantibiotic feed additives on performance, nutrient retention, gut pH, and intestinal morphology of broilers fed different levels of energy

Houshmand, Mohammad; Azhar, K.; Zulkifli, I.; Bejo, Mohd Hair; Kamyab, A.

doi:10.3382/japr.2010-00171

Cited by 34 publications

(21 citation statements)

References 29 publications

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“…In the current study, there was no observable influence of additives on the height of intestinal villi. Similar results have been described by Houshmand et al (2011), who used organic acids as growth promoters in the feed of broiler chickens. These authors found no difference in villus height or the crypt depth in the duodenum, jejunum, and ileum.…”

Section: Discussionsupporting

confidence: 89%

“…Hernández et al (2006) did not obtain positive effects on the performance (BW gain, FI, and FCR) and intestinal histomorphology of broiler chickens supplemented with formic acid (5 and 10 g/kg of feed). Houshmand et al (2011) found no positive effects on broiler performance and intestinal villi height from the use of a blend of organic acids (formic acid, citric acid, malic acid, lactic acid, tartaric acid, and orthophosphoric acid) at the inclusion rate of 1.5 g/ kg of feed.…”

Section: Discussionmentioning

confidence: 85%

“…The majority of research studies related to the use OA and CE products have been conducted on broiler chickens, often with inconsistent results (Gunal et al, 2006;Hernández et al, 2006;Isabel and Santos, 2009;Houshmand et al, 2011). The present study aimed to evaluate the effect of continuous supplementation of OA and CE product in the diet on growth performance, height of intestinal villi, crypt depth, villus:crypt ratios, and the concentration of volatile fatty acids (VFA) in the cecal content of commercial turkeys, as an alternative to the use of antibiotics as a growth promoter.…”

Section: Use Of Organic Acids and Competitive Exclusion Product As Anmentioning

confidence: 97%

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Use of organic acids and competitive exclusion product as an alternative to antibiotic as a growth promoter in the raising of commercial turkeys

Milbradt¹,

Okamoto²,

Rodrigues³

et al. 2014

Poultry Science

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A study was conducted to investigate the effects of organic acids (OA) and competitive exclusion product (CE) on growth performance, intestinal morphology, and concentration of volatile fatty acids in the cecal content. The experiment lasted for 10 wk. Four hundred twenty 1-d-old female commercial cross turkey poults (British United Turkeys, BUT Big 9) were distributed into 4 treatments with 5 replicates/pen of 21 birds each. The birds were fed a basal diet without growth promoter (control), diet with lincomycin (44 mg/kg), diet with organic acids (2 g/kg), and diet with product of CE (10(9) cfu/kg). Dietary levels of other nutrients, housing, and general management practices were similar for all treatments. On the first week (d 0-7), the BW and BW gain of the birds that fed diets with OA were lower than in the control group. In the fattening phase (d 28-70), the feed intake of the OA-treated group was lower than compared with the control. The birds that received diet with OA and CE product presented higher concentrations of propionic acid, at 14 d, and butyric acid in cecal content at 28, 56, and 70 d, compared with the control. Dietary inclusion of additives had no significant effects on intestinal villus height, crypt depth, and villus:crypt ratio. Organic acids had negative effects either on early gain or feed intake throughout the study. Because the test was conducted under controlled experimental conditions, the additives that showed results similar to those found by using antibiotics should be studied further in commercial farms to obtain results that can be incorporated into practice.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 85%

Section: Use Of Organic Acids and Competitive Exclusion Product As Anmentioning

confidence: 97%

See 1 more Smart Citation

Use of organic acids and competitive exclusion product as an alternative to antibiotic as a growth promoter in the raising of commercial turkeys

Milbradt¹,

Okamoto²,

Rodrigues³

et al. 2014

Poultry Science

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“…Dietary prebiotics (mannanoligosaccharides, MOS) improved BWG, FI and FE in 1-to 21-day-old broilers fed low-Ca diets (Houshmand et al 2011b). However, Houshmand et al (2011a) reported that the addition of MOS did not enhance growth performance or energy utilization in 1-to 42-day-old broilers fed nutrientadequate diets. Their data suggest that animal response to a prebiotic may be relative to nutrient levels.…”

Section: Growth Performancementioning

confidence: 95%

Effects of fermentation products ofCordyceps militarison growth performance and bone mineralization of broiler chicks

Han

Wang

et al. 2014

Journal of Applied Animal Research

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The present study aimed to evaluate the effects of fermentation products of Cordyceps militaris (FPCM) on growth performance and tibia mineralization of broiler chicks. A total of 240 one-day-old female Ross 308 broilers were allotted into four treatments with six cages of 10 chicks each. Four diets were the control diet supplemented with 0, 1, 2 and 4 g/kg of FPCM, respectively. Compared with the control, supplementation of 1 g/kg FPCM improved body weight gain of broilers from 22 to 42 days of age and from 1 to 42 days of age (P < 0.05); 4 g/kg of FPCM enhanced the feed intake of 22-to 42-day-old and 1-to 42-day-old chicks (P < 0.05). Addition of 2 g/kg FPCM increased tibia calcium (Ca) content of broilers at 21 and 42 days (P < 0.01). FPCM did not affect serum biochemical parameters (P > 0.05). These data indicate that FPCM had positive effects on growth performance of broiler chicks and the optimal dietary FPCM level was 1 g/kg in chicks from 1 to 42 days of age.

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“…were selected, recorded the live weights and euthanized via cervical dislocation (Houshmand et al, 2011). Manual evisceration was followed after bleeding.…”

Section: Post-mortem Procedures and Carcass Measurementsmentioning

confidence: 99%

Evaluation of Growth Performance, Meat Quality and Sensory Attributes of the Broiler Fed a Diet supplemented with Curry Leaves (Murraya koenigii)

Nuwan¹,

Wickramasuriya²,

Jayasena³

et al. 2016

Korean Journal of Poultry Science

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An experiment was conducted to evaluate the growth performance and meat quality traits of broilers fed a diet supplemented with dry-ground curry leaves (Murraya koenigii). A total of 750 one-day-old broiler chicks (Cobbs 500) were arranged in the experiment with a completely randomized design and allotted to one of five treatments, with T 1 -Control and T 2 -T 5 curry leaves powder levels (i.e., 0.3%, 0.6%, 0.9% and 1.2%, respectively). The initial body weights, final body weights and daily feed intake were measured over an experimental period of 32 days. At the conclusion of the experiment, the carcass weights and meat quality parameters were measured. The birds fed diets supplemented with curry leaves powder had a higher weight gain (P<0.05; ADG), improved feed conversion ratio (P<0.05; FCR) and lower mortality (P<0.05) rates compared to the birds in the control group. Nonetheless, there was no difference (P>0.05) in feed intake among the dietary treatments. Similarly, supplementation of curry leaves powder had no effect (P>0.05) on the proportions of the carcass, leg meat and drumstick. No differences were (P>0.05) observed in cooking loss or the pH of meat from broilers fed the curry leaves supplemented diet. However, curry leaf supplementation affected (P<0.05) the meat water holding capacity. A sensory evaluation showed higher levels of taste and tenderness in meat from broilers fed with curry leaves powder. In conclusion, our results suggested that curry leaves powder improved the growth performance of broilers, with a lower incidence of mortality and improvement of some meat qualities.

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Effects of nonantibiotic feed additives on performance, nutrient retention, gut pH, and intestinal morphology of broilers fed different levels of energy

Cited by 34 publications

References 29 publications

Use of organic acids and competitive exclusion product as an alternative to antibiotic as a growth promoter in the raising of commercial turkeys

Use of organic acids and competitive exclusion product as an alternative to antibiotic as a growth promoter in the raising of commercial turkeys

Effects of fermentation products ofCordyceps militarison growth performance and bone mineralization of broiler chicks

Evaluation of Growth Performance, Meat Quality and Sensory Attributes of the Broiler Fed a Diet supplemented with Curry Leaves (Murraya koenigii)

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