Effect of Low‑ And High Phytase Barley on Phosphorus Retention and Bone Mineral Composition in Broilers

The effects of low‑phosphorus diets with two levels of phytase were examined in broiler chickens using eight replicates per treatment. The diets contained 40 % of spring barley with either 201 or 305 phytase activity units per kg. Chromic oxide was included in the diets as an indigestible marker. Excreta were collected during four consecutive three‑day balance periods from the 12thto the 23rdday of age. No difference was observed for body weight gain between the dietary treatment groups but feed conversion ratio was better (P < 0.05) when higher phytase barley was used. In spite of the higher dietary level of phosphorus, the coefficient of apparent P retention was higher (P < 0.01) in higher than in lower phytase group. The retention of phosphorus increased (P < 0.01) with time of feeding in both low‑phosphorus dietary groups. Differences between treatments in concentration of calcium, phosphorus, magnesium, sodium and potassium in defatted tibia were not significant (P > 0.05).

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Effect of Nanosilica and Bentonite as Mycotoxins Adsorbent Agent in Broiler Chickens’ Diet on Growth Performance and Hepatic Histopathology

Animals ◽

10.3390/ani11072129 ◽

2021 ◽

Vol 11 (7) ◽

pp. 2129

Author(s):

Abdallah A. Ghazalah ◽

Mamduh O. Abd-Elsamee ◽

Kout Elkloub M. E. Moustafa ◽

Mohamed Abdelrazik Khattab ◽

Abd-Elrahim A. A. Rehan

Keyword(s):

Growth Performance ◽

Broiler Chickens ◽

Body Weight Gain ◽

Control Diet ◽

Dietary Treatment ◽

Control Group ◽

Feed Conversion ◽

Treatment Groups ◽

Four Levels ◽

Hepatic Histopathology

Mycotoxins are toxic secondary metabolites produced by different strains of fungi, such as aspergillus, fusarium, and penicillium that can contaminate feed ingredients or the entire feed of poultry and animals. Mycotoxins can cause many serious complications to both humans and animals due to carcinogenic, mutagenic, and immunosuppressive disorders. Therefore, the present experiment aims to investigate the effect of broiler chickens’ diets supplemented with different levels of nanosilica (NS) as an adsorbent agent of mycotoxins on their growth performance and hepatic histopathology. Detectable levels of toxins were present in the feed before feeding, and all levels of mycotoxins were above the normal limit. A total of 180 one-day-old male Arbor Acres broiler chickens were allocated randomly to six treatment groups with three replicates per group, including ten chickens per replicate. The experiment lasted for five weeks, and dietary treatments included control diet and diets with four levels of nanosilica as 0.05%, 0.10%, 0.15%, and 0.20% as well as 0.50% bentonite (fixfin® Dry) diet. Bodyweight, body weight gain, average daily feed intake, and feed conversion ratio were measured weekly. At the end of the fifth week, six chickens per treatment were sacrificed to investigate the effects of NS and bentonite on carcass characteristics and hepatic histopathology. The results showed that providing broiler chickens’ diets with an adsorbent agent, such as NS or bentonite, can reduce the side effects of mycotoxins and enhance their growth performance. The best record was achieved with NS at 0.20%, compared with the control group and other dietary treatment groups. Accordingly, 0.20% of NS could be used in broiler chickens’ diets to minimize the harmful effects of mycotoxins.

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Performance of Broiler Chickens on Feed Supplemented with Prebiotic Herbs—Origanum Vulgare and Zingiber Officinale

International Journal of Probiotics and Prebiotics ◽

10.37290/ijpp2641-7197.14:24-27 ◽

2019 ◽

Vol 14 (1) ◽

pp. 24-27

Author(s):

Condoy Mercy Cuenca ◽

Cornejo Manuel Maldonado ◽

Parra Sandro Seminario

Keyword(s):

Weight Gain ◽

Feed Intake ◽

Broiler Chickens ◽

Body Weight Gain ◽

Zingiber Officinale ◽

Control Group ◽

Broiler Chicks ◽

Feed Conversion ◽

Origanum Vulgare ◽

Treatment Groups

The objective of this study was to evaluate the effects of feed supplementation with two prebiotic herbs—Origanum vulgare and Zingiber officinale—on growth performance of broiler chickens. The feed conversion ratio was determined weekly by dividing feed intake by body weight gain. A total of 400 one-day-old broiler chicks were divided into four treatment groups of four replicates of 25 chickens each using a complete design random. The four treatment groups were T0 (control), T1 (0.5% oregano), T2 (0.5% ginger), T3 (0.25% oregano + 0.25% ginger). The chicks were grown to 42 days of age. Weight gain, feed intake, conversion, carcass quality and mortality were determined weekly. Data analysis revealed that during the first 35 days of broiler chicken’s life, none of the dietary interventions had any effect on productive parameters (P > 0.05). However, during the last week of treatment, the oregano and ginger supplementation had a positive effect on weight gain and feed conversion (P < 0.05) than in the control group. In conclusion, the addition of oregano and ginger in the daily food ratio for broiler chickens during the last stage of the productive cycle improved the productive parameters, and carcass characteristics.

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Effect of supplementation of vitamin E and selenium from Lolyvit-ES on the performance of broiler

Asian Journal of Medical and Biological Research ◽

10.3329/ajmbr.v3i4.35344 ◽

2018 ◽

Vol 3 (4) ◽

pp. 521-528

Author(s):

Mohammad Salahuddin ◽

Zahirul Haque Khandaker ◽

Mohammad Mohiuddin ◽

Md Mostain Billah

Keyword(s):

Body Weight ◽

Vitamin E ◽

Body Weight Gain ◽

Dietary Treatment ◽

Experimental Period ◽

The Body ◽

Feed Consumption ◽

Broiler Chicks ◽

Feed Conversion ◽

Treatment Groups

An experiment was conducted in the poultry rearing unit of Sahjalal Animal Nutrition Field Laboratory, Bangladesh Agricultural University, Mymensingh for a period of 30 days by using 108 one week aged straight run Starbro broiler chicks to find out the effect of vitamin E and selenium as feed supplement for the performance of broiler. Chicks were distributed into 4 dietary treatment groups each having three replications (R1, R2, R3) and each replication contains 9 chicks. Dietary treatment groups were T0 (Control i.e. without supplemental vitamin E and Selenium), T1 (Control + 50 mg vitamin E 0.11 mg selenium per kg diet), T2 (Control + 100 mg vitamin and 0.22 mg Selenium per kg diet and T3 (Control + 150 mg vitamin E and 0.33 mg Selenium per kg diet). At end of the feeding trail the body weight of birds were 1238.28, 1231.85, 1272.59, and 1218.33 gm/bird in treatment groups T0, T1, T2 and T3 respectively which differ significantly (p<0.05) where highest body weight observed in T2 group . Body weight gain was highest in T2 (control+100mg vitamin E and 0.22 mg Selenium per kg diet) and lowest in T0 (control). Total Feed consumption during the experimental period was 2480.30, 2523.80, 2564.56 and 2555.39 g for T0, T1, T2 and T3 respectively. At 2nd and 3rd week of age, weekly feed conversion ratio were significantly (p<0.05) higher in T2 group than the other groups including control. Meat yield parameter of broilers showed significant (P<0.05) differences in dressing weight, breast weight and shank weight. Based on the above findings, the result suggest that supplementation of Vitamin E 100 mg and 0.22 mg Selenium per kg diet from ‘‘Lolyvit-ES’’ as a source of Vitamin E and Selenium may be used in broiler rations.Asian J. Med. Biol. Res. December 2017, 3(4): 521-528

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Influence of a combination of formic and propionic acids added to wheat- and barley-based diets on the performance and gut histomorphology of broiler chickens

Acta Veterinaria Hungarica ◽

10.1556/avet.55.2007.4.7 ◽

2007 ◽

Vol 55 (4) ◽

pp. 479-490 ◽

Cited By ~ 14

Author(s):

N. Senkoylu ◽

H. Samli ◽

M. Kanter ◽

Aylin Agma

Keyword(s):

Broiler Chickens ◽

Body Weight Gain ◽

Dietary Treatment ◽

Control Group ◽

Broiler Chicks ◽

Feed Conversion ◽

Villus Height ◽

Nutrient Density ◽

Dietary Treatments ◽

Different Levels

Day-old male chicks were used to test the effects of a combination of formic and propionic acids (CFP) added to wheat- and barley-based diets on the performance and gut histomorphology of broilers. The CFP, containing formic and propionic acids based on an inorganic phyllo-silicate carrier, was added to starter and grower broiler diets of standard (NRC, 1994) or lower nutrient density (LND) using different levels of wheat and barley. Body weight gain (BWG) and feed conversion ratio (FCR) of broiler chicks were significantly (P < 0.001) improved by CFP supplementation at 21 days of age regardless of nutrient density (ND). However, at 35 days of age CFP addition significantly (P < 0.001) increased BWG and FCR. Proventriculus weight was also significantly affected by the dietary treatments. Ileal viscosity was significantly (P < 0.05) affected by ND which was associated with wheat and barley contents, whereas feed viscosity was significantly (P < 0.05) affected by CFP supplementation. Villus height was significantly (P < 0.05) increased by the CFP supplementation. In the case of villus width, an interaction effect was observed: there was a significant (P < 0.05) decrease in the group fed the standard ND diet, but only a numerical decrease in the group fed the LND diet compared to control group. No significant effect of dietary treatment on the thickness of the lamina muscularis mucosae could be detected.

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Effect of processed doum palm (Hyphaene thebaica) pulp meal on growth performance, nutrient digestibility, carcass characteristics and haematological indices of broilers

Journal of Animal Science and Veterinary Medicine ◽

10.31248/jasvm2021.292 ◽

2021 ◽

pp. 182-187

Author(s):

Ibe Emmanuel Agwor ◽

◽

Kudu Yahaya Salihu ◽

Bisi Alex Ayanwale ◽

Malik Abdulganiyu Ayodele ◽

...

Keyword(s):

Growth Performance ◽

Broiler Chickens ◽

Body Weight Gain ◽

Carcass Characteristics ◽

Nutrient Digestibility ◽

Feed Conversion ◽

Treatment Groups ◽

Carcass Parameters ◽

Dietary Treatments ◽

Haematological Indices

The increase in human population, particularly in the developing countries like Nigeria and the demand for animal protein intake has necessitated different approaches of solving protein shortage. A 28-day study was carried out to determine the performance of finishers fed on different hourly soaked doum palm (Hyphaene thebaica) pulp meal (DPPM) diets. Two hundred and sixteen (216) finishers (4 week-old) were randomly allotted to six dietary treatments. Each treatment consisted of 36 birds with three replicates (12 birds per replicate) in a completely randomized design (CRD). Six experimental diets were formulated and designed as follows: T1 (Control) contained 0% DPPM while T2, T3, T4, T5 and T6 contained 12.5% each of 2, 4, 6, 8 and 10 hours soaked DPPM as substitute for maize, respectively. Feeds and water were provided ad libitum for all treatment groups. The average body weight gain (40.44- 42.71 g/b/d), average feed intake (87.52-96.73 g/b/d) and feed conversion ratio (2.14-2.34) were non-significant (p>0.05) regardless of the dietary treatments. Statistical differences (p<0.05) were observed in some carcass parameters such as thigh (13.40-14.98%), neck (5.32-6.55%), shank (3.81-5.2 %), wing (9.80-11.41%), head (2.43-3.74%) and two haematological indices; white blood cell (160.67-189.53 X 103/mm3) and eosinophils (0.33-2.00%) across the treatment groups. The processed DPPM could serve as a rich energy source in broiler feeds with the raw doum palm pulp containing 2987.45 kcal/kg. Also, soaking the pulp for 2 to 10 hours before been included in broiler diet improved the nutritional content, acceptability, palatability and utilization of the feed by the broilers. Thus, up to 12.5% processed DPPM can be included in the diets of broiler chickens without adverse effect on growth performance, nutrient digestibility, carcass characteristics and haematological indices of chickens.

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Effect of Feeding Low Protein Diets on the Production Traits and the Nitrogen Composition of Excreta of Broiler Chickens

Agriculture ◽

10.3390/agriculture11080781 ◽

2021 ◽

Vol 11 (8) ◽

pp. 781

Author(s):

Nikoletta Such ◽

László Pál ◽

Patrik Strifler ◽

Boglárka Horváth ◽

Ilona Anna Koltay ◽

...

Keyword(s):

Uric Acid ◽

Broiler Chickens ◽

Dietary Treatment ◽

Production Traits ◽

Feed Conversion ◽

Total N ◽

Treatment Groups ◽

Low Protein ◽

Dietary Treatments ◽

Protein Reduction

The main goal of the current study was to investigate the effects of feeding low protein (LP) diets on the performance parameters and excreta composition of broiler chickens. In total, 288 male Ross 308 day-old chickens were divided into two dietary treatment groups using six replicate pens with 24 chickens each. No LP diet was fed in the starter phase. The protein reduction in the grower and finisher phases were 1.8% and 2% respectively. Beside the measurements of production traits, on day 24 and 40 representative fresh excreta samples were collected, their dry matter, total N, NH4+-N and uric acid-N contents determined, and the ratio of urinary and fecal N calculated. Dietary treatments failed to cause significant differences in the feed intake, growth rate, and feed conversion ratio of animals. LP diets decreased the total nitrogen and uric acid contents of excreta significantly. The age of birds had also significant effect, resulting more reduction in the grower phase compared with the finisher. The ratio of urinary N was higher at day 40 compared with the age of day 24. The urinary N content of broiler chicken’s excreta is lower than can be found in the literature, which should be considered in the ammonia inventory calculations.

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Treonine Dayalı Yem Seçiminin Erkek Etlik Piliçlerde Performans ve Karkas Özelliklerine Etkisi

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v2i4.190-196.117 ◽

2014 ◽

Vol 2 (4) ◽

pp. 190 ◽

Cited By ~ 1

Author(s):

Tugay Ayasan ◽

Ferda Okan

Keyword(s):

Body Weight Gain ◽

Dietary Treatment ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Broiler Chicks ◽

Feed Conversion ◽

Treatment Groups ◽

Carcass Parameters ◽

Experimental Treatments ◽

Choice Feeding

The aim of this study was to evaluate the effect of choice feeding based on threonine on performance characteristics and carcass parameters of male broiler chicks. Day old, thirty Ross 308 male chicks were divided into two dietary treatment groups. In the experiment, choice feding did not affect on body weight gain, feed conversion ratio. Feed intake and carcass parameters significantly affected by experimental treatments.

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Supplementing Garlic Nanohydrogel Optimized Growth, Gastrointestinal Integrity and Economics and Ameliorated Necrotic Enteritis in Broiler Chickens Using a Clostridium perfringens Challenge Model

Animals ◽

10.3390/ani11072027 ◽

2021 ◽

Vol 11 (7) ◽

pp. 2027

Author(s):

Doaa Ibrahim ◽

Tamer Ahmed Ismail ◽

Eman Khalifa ◽

Shaimaa A. Abd El-Kader ◽

Dalia Ibrahim Mohamed ◽

...

Keyword(s):

Growth Performance ◽

Clostridium Perfringens ◽

Broiler Chickens ◽

Body Weight Gain ◽

Economic Benefits ◽

Production Costs ◽

Broiler Chicks ◽

Necrotic Enteritis ◽

Feed Conversion ◽

Intestinal Lesion

Necrotic enteritis (NE) caused by Clostridium perfringens (C. perfringens) results in impaired bird growth performance and increased production costs. Nanotechnology application in the poultry industry to control NE outbreaks is still not completely clarified. Therefore, the efficacy of dietary garlic nano-hydrogel (G-NHG) on broilers growth performance, intestinal integrity, economic returns and its potency to alleviate C. perfringens levels using NE challenge model were addressed. A total of 1200 male broiler chicks (Ross 308) were assigned into six groups; four supplemented with 100, 200, 300 or 400 mg of G-NHG/kg diet and co-challenged with C. perfringens at 21, 22 and 23 d of age and two control groups fed basal diet with or without C. perfringens challenge. Over the total growing period, the 400 mg/kg G-NHG group had the most improved body weight gain and feed conversion efficiency regardless of challenge. Parallel with these results, the mRNA expression of genes encoding digestive enzymes (alpha 2A amylase (AMY2A), pancreatic lipase (PNLIP) and cholecystokinin (CCK)) and intestinal barriers (junctional adhesion molecule-2 (JAM-2), occludin and mucin-2 (Muc-2)) were increased in groups fed G-NHG at higher levels to be nearly similar to those in the unchallenged group. At 14 d post challenge, real-time PCR results revealed that inclusion of G-NHG led to a dose-dependently decrease in the C. perfringens population, thereby decreasing the birds’ intestinal lesion score and mortality rates. Using 400 mg/kg of G-NHG remarkably ameliorated the adverse effects of NE caused by C. perfringens challenge, which contributed to better growth performance of challenged birds with rational economic benefits.

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Effects of Lactobacillus reuteri and Streptomyces coelicolor on Growth Performance of Broiler Chickens

Microorganisms ◽

10.3390/microorganisms9061341 ◽

2021 ◽

Vol 9 (6) ◽

pp. 1341

Author(s):

Sarayu Bhogoju ◽

Collins N. Khwatenge ◽

Thyneice Taylor-Bowden ◽

Gabriel Akerele ◽

Boniface M. Kimathi ◽

...

Keyword(s):

Broiler Chickens ◽

Lactobacillus Reuteri ◽

Body Weight Gain ◽

Streptomyces Coelicolor ◽

Control Diet ◽

Probiotic Bacteria ◽

Feed Consumption ◽

Feed Conversion ◽

Wheat Middlings ◽

Dietary Treatments

There are well documented complications associated with the continuous use of antibiotics in the poultry industry. Over the past few decades, probiotics have emerged as viable alternatives to antibiotics; however, most of these candidate probiotic microorganisms have not been fully evaluated for their effectiveness as potential probiotics for poultry. Recent evaluation of a metagenome of broiler chickens in our laboratory revealed a prevalence of Lactobacillus reuteri (L. reuteri) and Actinobacteria class of bacteria in their gastrointestinal tract. In this study Lactobacillus reuteri and Streptomyces coelicolor (S. coelicolor) were selected as probiotic bacteria, encapsulated, and added into broiler feed at a concentration of 100 mg/kg of feed. In an 8-week study, 240 one day-old chicks were randomly assigned to four dietary treatments. Three dietary treatments contained two probiotic bacteria in three different proportions (L. reuteri and S. coelicolor individually at 100 ppm, and mixture of L. reuteri and S. coelicolor at 50 ppm each). The fourth treatment had no probiotic bacteria and it functioned as the control diet. L. reuteri and S. coelicolor were added to the feed by using wheat middlings as a carrier at a concentration of 100 ppm (100 mg/kg). Chickens fed diets containing L. reuteri and S. coelicolor mixture showed 2% improvement in body weight gain, 7% decrease in feed consumption, and 6–7% decrease in feed conversion ratios. This research suggests that L. reuteri and S. coelicolor have the potential to constitute probiotics in chickens combined or separately, depending on the desired selection of performance index.

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The Effect of Dietary Halloysite Supplementation on the Performance of Broiler Chickens and Broiler House Environmental Parameters

Animals ◽

10.3390/ani11072040 ◽

2021 ◽

Vol 11 (7) ◽

pp. 2040

Author(s):

Małgorzata Nadziakiewicz ◽

Marcin Wojciech Lis ◽

Piotr Micek

Keyword(s):

Body Weight ◽

Broiler Chickens ◽

Body Weight Gain ◽

Environmental Parameters ◽

Feed Consumption ◽

Feed Additive ◽

Feed Conversion ◽

Daily Body Weight ◽

Daily Water ◽

Broiler House

The aim of the study was to determine the effect of supplementing broiler chickens’ diets with halloysite on daily body weight gain (BWG), feed conversion ratio (FCR), daily water consumption (DWC), and some broiler house hygiene parameters. The trial was conducted on 18,000 broiler chickens divided into two groups throughout the 42-day (D) rearing period. The birds were fed complete diets without (group C) or with halloysite addition (1%, group E) from D8 of rearing. No difference in the mortality rate was observed between groups C and E. Birds from group E had a tendency (0.05 < p < 0.10) towards a higher body weight at D32 and D42, a higher BWG, and a lower FCR compared to group C during the entire rearing period. Average DWC differed only in the finisher period, with a tendency towards lower overall DWC in group E. The concentration of ammonia in the air from D21 to D35 was increased more than 5-fold in group C but only 1.5-fold in group E. In conclusion, the use of halloysite as a feed additive in the diet of broiler chickens resulted in a reduction in feed consumption per unit of BWG and higher utilisation of crude protein, which led to improved environmental conditions.

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