Effects of Feeding Locally Grown Whole Barley With or Without Enzyme Addition and Whole Wheat on Broiler Performance and Carcass Traits

Nahas, J.; Lefrançois, M. R.

doi:10.1093/ps/80.2.195

Cited by 52 publications

(22 citation statements)

References 20 publications

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“…Similar results have been reported by Amerah et al (2008). In contrast, other researchers have reported higher relative abdominal fat weight when WW was included Nahas & Lefrancois, 2001). Column means with different superscripts differ significantly at P <0.05; * P <0.1, NS -non-significant.…”

Section: Resultssupporting

confidence: 87%

Effect of butyric acid supplementation and whole wheat inclusion on the performance and carcass traits of broilers

Aghazadeh¹,

TahaYazdi²

2012

SA J. An. Sci.

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To evaluate the effects of butyric acid (BA) levels and wheat form (WF) on the performance of broiler chickens, 320 day-old Ross 308 broiler chicks were randomly distributed among 32 floor pens. A 4 × 2 factorial arrangement with four levels of BA (B 1 : 0 g BA/kg in both starter and grower feed; B 2 : 2.5 g BA/kg in both starter and grower feed; B 3 : 2.5 g BA/kg in starter and 1 g BA/kg in grower feed; and B 4 : 2.5 g BA/kg in starter and 0 g BA/kg in grower feed) and two forms of wheat (whole (WW) vs. ground (GW)) were used. Dietary supplementation with BA had no effect on average weight gain (AWG) or feed conversion ratio (FCR) in the starter, grower/finisher and over whole (0 -42 d) trial periods. However, birds consumed more when the diet was supplemented with butyrate (B 2 ) relative to the control and other experimental diets during 0 -42 d, but this increase was not associated with improved AWG or FCR as compared with that of the control. The BA had no significant effect on relative fat pad, gizzard or breast meat, but increased liver weight. The length of the entire gut was augmented by BA and WW feeding. Feeding WW increased the relative weight of the gizzard and liver, but decreased the relative weight of abdominal fat. Two-way interactions were not significant for any of the carcass traits or organ-size parameters except for breast meat, in which a significant interaction was observed between BA and WF.________________________________________________________________________________

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Section: Resultssupporting

confidence: 87%

Effect of butyric acid supplementation and whole wheat inclusion on the performance and carcass traits of broilers

Aghazadeh¹,

TahaYazdi²

2012

SA J. An. Sci.

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“…In contrast, Wu et al (2004) found no effect of whole wheat inclusion on abdominal fat weights. Other researchers have reported higher relative abdominal fat weight when whole wheat was included (Jones and Taylor, 2001;Nahas and Lefrancois, 2001). These conflicting results with regard to abdominal fat with whole wheat feeding may be partially due to incorrect protein to energy ratio in the basal diet (Erener et al, 2003).…”

Section: Resultsmentioning

confidence: 96%

The Effect of Thyme Extract on Growth Performance, Digestive Organ Weights and Serum Lipoproteins of Broilers Fed Wheat-Based Diets

Pourmahmoud

Aghazadeh

Maheri-Sis

2013

Italian Journal of Animal Science

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The effect of the thyme extract and wheat form of the diet on performance, digestive organ weights and serum lipoproteins was studied in 320 male day old (ROSS 308) chicks. From 1 to 42 d of age, 8 diets arranged factorial with 4 thyme extract level (0.0, 0.2, 0.4 and 0.6%) and 2 wheat forms (ground vs whole) was used. Each treatment was replicated 4 times (10 birds per replicate). Thyme extract had no significant effect on body weight gain, feed intake and feed conversion ratio irrespective of wheat form used over whole trial period (1-42 d). From 1 to 21 d of age, broilers fed the whole wheat diet grew faster than the broilers fed ground wheat based diet (609.06 vs 573.34 g). Relative abdominal fat and gizzard weight was significantly higher (P<0.05) in birds fed the whole wheat diets. Two-way interaction between thyme extract and wheat form were observed for total cholesterol, LDL-cholesterol, HDL-cholesterol and very-low-density lipoprotein (VLDL) in the experiment. The results showed that the extract had no effect on performance of broilers irrespective of wheat form used. Relative gizzard weight was higher (P<0.05) in birds fed the whole wheat diets, but an increase in abdominal fat should be taken into account for carcass quality and processing. The predominant effect of thyme extract on lowering lipid levels in broilers fed on wheat based diets was on triglyceride rather than on cholesterol concentrations.

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“…The anti-nutritive activity of pentosans in wheat is also related to the increase in digesta viscosity Annison, 1990, 1992). The increased viscosity reduces intestinal digestion and absorption because of the interaction between pentosans and endogenous enzymes that promotes the formation of a complex that reduces the activity of these enzymes (Nahas and Lefrançois, 2001). Therefore, microbial enzymes have been found to be beneficial in terms of nutrient utilisation when supplemented into barley or wheat based broiler diets (Edney et al, 1989;Pe�erson et al, 1990;Nahas and Lefrençois, 2001).…”

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confidence: 99%

Implications of b-glucanase and pentosanase enzymes in low-energy low-protein barley and wheat based broiler diets

Senkoylu¹,

Akyürek²,

Şamlı³

2004

CZECH J ANIM SCI

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This study was conducted to test the effects of a commercial enzyme (with β-glucanase and pentosanase activities) supplemented into low-protein low-energy barley and wheat based broiler diets on broiler performance. The enzyme was added at 500 g/ton into broiler grower and finisher diets consisting of mainly wheat at 76%, 85% or barley 67%, 75%, respectively. Four dietary treatments were wheat, wheat + enzyme, barley, barley + enzyme. Each treatment had six replications. This experiment was planned according to a completely randomised design by placing ten 14-day-old mixed male and female chicks into one experimental cage unit with wire floor. Cobb broiler chicks were used in this study. Experimental grower and finisher diets were fed to chicks between 14-28 and 28-42 days of age, respectively. One-day-old chicks were fed a standard starter diet (23% protein; 12.77 MJ ME/kg) according to NRC (1994) recommendations. Grower diet and finisher diets were formulated to be 10% lower than NRC (1994) with respect to the protein and metabolisable energy content. Body weight, average weight gain (14-42 days period), feed intake and feed efficiency ratio were measured at 42 days of age. The results of this study demonstrated that the enzyme with β-glucanase and pentosanase activities supplemented into barley-based broiler diets significantly (P < 0.05) improved body weight by 10%, from 1 779 to 1 958 g, and gain by 12%, from 1 485 to 1 657 g, respectively. However, when the same enzyme was supplemented into wheat-based diets, no improvement (P < 0.05) was obtained in body weight and feed efficiency, being 1 723 and 1 677 g and 1 973 and 1 957, respectively for wheat and wheat + enzyme groups. The feed efficiency ratio was also significantly (P < 0.05) improved in barley-based diet from 1.898 to 1.845 by enzyme addition during the 14-42 days experimental period.

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Effects of Feeding Locally Grown Whole Barley With or Without Enzyme Addition and Whole Wheat on Broiler Performance and Carcass Traits

Cited by 52 publications

References 20 publications

Effect of butyric acid supplementation and whole wheat inclusion on the performance and carcass traits of broilers

Effect of butyric acid supplementation and whole wheat inclusion on the performance and carcass traits of broilers

The Effect of Thyme Extract on Growth Performance, Digestive Organ Weights and Serum Lipoproteins of Broilers Fed Wheat-Based Diets

Implications of b-glucanase and pentosanase enzymes in low-energy low-protein barley and wheat based broiler diets

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