scholarly journals Effect of Different Levels of L-carnitine and Excess Lysine-Methionine on Broiler Performance, Carcass Characteristics, Blood Constituents, Immunity and Triiodothyronine Hormone

Agriculture ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 138
Author(s):  
Vincenzo Tufarelli ◽  
Hooman Mehrzad-Gilmalek ◽  
Mehrdad Bouyeh ◽  
Ali Qotbi ◽  
Hossein Amouei ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
National Research Council ◽  
The Body ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Hormone Levels ◽  
Blood Constituents ◽  
Blood Uric Acid ◽  
Dietary Treatments ◽  
Different Levels

The influence of dietary L-carnitine and lysine (Lys)-methionine (Met) levels on productive performance, haematology and triiodothyronine hormone levels of broilers was investigated. Dietary treatments included different L-carnitine (0, 50 and 100 mg/kg) and Lys-Met (0%, 10% and 20% over National Research Council (NRC) (1994) recommendation levels), under a 3 × 3 factorial design arrangement. From the findings, the body weight (BW) gain, feed intake and feed conversion ratio (FCR) of broilers were significantly (p < 0.05) influenced by dietary treatments in the different growing stages. Conversely, carcass yield and organs did not differ (p > 0.05) among treatments, whereas meat-cuts varied significantly when broilers were fed experimental diets. Moreover, the dietary inclusion of the highest levels of amino-acids (L-carnitine (100 mg/kg) and Lys-Met (+20%)) produced a reduction (p < 0.05) of blood uric acid, also leading to the highest triiodothyronine (T3) hormone levels. Based on the obtained results, it can be concluded that the combination of extra levels of L-carnitine associated with Lys-Met positively influenced the performance traits in broiler chickens.

scholarly journals DIFFERENT LEVELS OF PROTEIN ON THE PERFORMANCE OF SYNTHETIC BROILER

2012 ◽  
Vol 8 (2) ◽  
pp. 117-122 ◽  
Author(s):  
SC Roy ◽  
MS Alam ◽  
MA Ali ◽  
SD Chowdhury ◽  
C Goswami
Keyword(s):  
Crude Protein ◽  
Live Weight ◽  
Experimental Period ◽  
The Body ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Fifth Generation ◽  
Net Profit ◽  
Dietary Treatments ◽  
Different Levels

An experiment was conducted with fifty four, 21 days old synthetic broiler (fifth generation) to study the effect of different levels of dietary protein on the performance of broiler during growing and finisher period. Three levels of protein i.e. T1 (18% CP), T2 (19% CP) and T3 (20%CP) were considered as the dietary treatments. The body weight achieved at 42 days of age was 1422.00, 1705.37 and 1563.67 gm in T1, T2 and T3, respectively which differs significantly (p< 0.01). The live weight gain at 42 days was also highest in T2 (19% CP) diet and significantly (p< 0.05) differed from T1 (18% CP) and T3 (20% CP) diets. Feed conversion ratios at the end of experimental period were 2.20, 1.75 and 1.87 in T1, T2 and T3, respectively which differs significantly (p<0.05). The performance index at 42 days of age was 50.66, 82.67 and 63.58 for T1, T2 and T3 respectively while feed consumption, livability and meat yield were not significantly (p>0.05) affected by dietary treatments. The net profit per kg live broiler was significantly highest (Tk.14.09/kg) (p<0.01) in T2 diet as compared to other treatments. It may be concluded that 19% crude protein diet, was the best with respect to growth, FCR and net profit for synthetic broiler (fifth generation) during growing and finisher period.DOI = http://dx.doi.org/10.3329/bjvm.v8i2.11193 Bangl. J. Vet. Med. (2010). 8 (2) : 117-122 

scholarly journals A Research on the Comparative Effect of Active Dry Yeast and Inactivated-Stabilized Probiotic Yeast (Thepax) Added at Different Levels to Diets on Broiler Performance

2021 ◽  
Vol 9 (12) ◽  
pp. 2219-2225
Author(s):  
Süleyman Çalışlar ◽  
Rahmi Kanat
Keyword(s):  
Broiler Chickens ◽  
Body Weight Gain ◽  
Live Weight ◽  
Abdominal Fat ◽  
Carcass Weight ◽  
Feed Consumption ◽  
Control Group ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Different Levels

This experiment was conducted to determine the effect of active yeast (AY) and inactive-stabilized yeast (Thepax) supplementation to the rations in different levels on broiler performance. In the experiment carried out according to the randomized plot design, there were 5 different treatment groups as control group (Group 1), 0.1% Thepax (Group 2), 0.2% Thepax (Group 3), 0.1% AY (Group 4) and 0.2% AY (Group 5). In the experiment, the effects of active and inactive yeasts on body weight gain (BWG), feed consumption, feed conversion rate, carcass weight (CW), carcass yield (CY), abdominal fat amount and mortality were investigated. In the present experiment, the final live weight, the cumulative feed consumption and feed conversion were insignificant. The statistical difference between the groups in the experiment was significant in carcass weight, but insignificant in the amount of abdominal fat and mortality rate. Inactive-stabilized yeast (Thepax 0.1%) was more effective than 0.2% AY on BWG. Only 0.1% Thepax increased the CW besides CY was high in 0.1%, 0.2% Thepax and 0.1% AY groups. It has been observed that active and inactive yeasts are used in broiler chickens without any problem.

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

2007 ◽  
Vol 55 (4) ◽  
pp. 479-490 ◽  
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.

The use of acidifying agents Aquasafe and Veleguard when rearing of broiler chickens

2020 ◽  
pp. 16-27
Author(s):  
L. Gamko ◽  
T. Tarinskaya
Keyword(s):  
Drinking Water ◽  
Organic Acids ◽  
Broiler Chickens ◽  
Positive Impact ◽  
The Body ◽  
Metabolic Energy ◽  
Control Group ◽  
Meat Production ◽  
Feed Conversion ◽  
Broiler Meat

It is known that necessary to replace the components of organic acids, which are part of acidifiers when drinking water to poultry in order to prevent the adaptation of microbes in the gastrointestinal tract. In the poultry industry organic acids are widely used, which are used as acidifiers to preserve the properties of water consumed. The purpose of this work was to evaluate the efficiency of broiler meat production when using acidifying agents of drinking water Aquasafe and Veleguard. The experimental part of the work has been performed in JSC “Kurinoe Tsarstvo-Bryansk” broiler area “Roshcha” in the Pochepsky district. The object of research was the livestock of broiler chickens cross Cobb 500 at floor housing. The effect of water acidifiers on meat productivity has been studied. Groups of chickens have been formed on the principle of pairs-analogues. Broiler chickens of experimental groups have been separated from the main livestock by a grid in the corner of the room for 100 heads in each group. It has been found by a result of research to be optimal dose usage of acidifying agents water Aquasafe and Veleguard to drink to broiler chickens. The positive effect of these acidifiers on the digestion of crude protein, crude fat, crude fiber, contributing to the effective use of nitrogen, which led to an increase in the intensity of growth, young animals’ livability and improved feed conversion. Slaughter yield in the control group was 55,1 %, and in the experimental group 57,2 and 58,4 %, which was by 2,1 and 3,3 % higher with the same level of metabolic energy and nutrients. In chickens that consumed acidifi ers more intensively used nutrients feed for deposition in the body of the components of the carcass, which affected the production. A positive impact of acidifying agents Aquasafe and Veleguard on meat quality in broiler chickens has been found.

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

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.

scholarly journals Bıldırcın Rasyonlarında Yonca Unu ve Enzim Kullanımının Performans, Karkas ve İnce Bağırsak Parametrelerine Etkisi

2020 ◽  
Vol 8 (6) ◽  
pp. 1353-1358
Author(s):  
Mahmut Mutlu ◽  
Alpönder Yıldız
Keyword(s):  
Dietary Treatment ◽  
Conversion Ratio ◽  
The Body ◽  
Intestinal Development ◽  
Feed Conversion ◽  
Treatment Groups ◽  
Japanese Quails ◽  
Carcass Parameters ◽  
Alfalfa Meal ◽  
Different Levels

This study was carried out to determine the influence of different levels of alfalfa meal and the addition of enzyme on performance, carcass and intestinal parameters in growing quails. Japanese quails (n=240), 1 days of age, were divided into 6 dietary treatment groups and the experiment lasted for 5 weeks. In each experiment group there were 4 replicates, and in each replicates there were 10 chicks. Six diets, arranged a factorial design with three alfalfa meal levels (0, 2.5 and 5.0 %) and two levels of added enzyme (0.0 and 1.0 g/kg) were used. The treatments did not effect on the body weight, feed intake and feed conversion ratio. However, relative liver, leg+back, intestine weights and crypt depth were significantly increased, and relative heart and breast weights and villus width decreased by dietary alfalfa meal levels. The addition of enzyme to diets containing alfalfa meal did not affect the performance and carcass parameters, but reduced the intestinal histomorphology parameters in quails. According to the results obtained from the experiment, it can be said that the use of alfalfa meal in growing quail diets did not affect the performance, but the use of alfalfa meal at the level of 2.5% in the diet promotes intestinal development.

scholarly journals The use of amaranth (genus AmaranthusL.) in the diets for broiler chickens

2012 ◽  
Vol 51 (No. 7) ◽  
pp. 399-407 ◽  
Author(s):  
B. Pisarikova ◽  
Z. Zraly ◽  
S. Kracmar ◽  
M. Trckova ◽  
I. Herzig
Keyword(s):  
Broiler Chickens ◽  
Live Weight ◽  
Control Group ◽  
Feed Conversion ◽  
Feeding Trial ◽  
Control Groups ◽  
Broiler Performance ◽  
Amaranth Grain ◽  
Percentage Yield ◽  
Experimental Group

The objective of our study was to test amaranth grain or dried biomass in the diet for broiler chickens as a resource of protein replacing animal protein. Further, the effect of amaranth on broiler performance, carcass characteristics and meat quality were assessed in a feeding trial. The experimental groups of broilers were fed feed mixtures with crude amaranth grain (AC), heat processed amaranth grain (AP) or dried above-ground biomass (AB). Control groups (C) received the diet containing animal proteins. The results obtained in the experimental groups of broiler chickens can be compared to the control group in all the production indicators under investigation. On day 42 of the experiment, live weight (g) of female broilers ranged from 2 205.1 &plusmn; 152.5 (AP) to 2 254.0 &plusmn; 136.5 (C), and that of male broilers from 2 375.1 &plusmn; 233.0 (AC) to 2 506.0 &plusmn; 286.0 (C). Feed conversion ranged from 1.80 kg in control group of male broiler chickens to 1.91 kg in experimental group of male broilers (AB). Percentage yield in female broiler chickens ranged from 70.8 &plusmn; 1.74 (AB) to 72.4 &plusmn;3.34(AC) or 72.4 &plusmn; 1.98 (C), and in male broilers from 72.8 &plusmn;3.55(AP) to 75.1 &plusmn;2.44(AB). Our results showed that amaranth can fully replace meat-and-bone meals in the diets for broiler chickens.

scholarly journals Combination of Bacillus licheniformis and Salinomycin: Effect on the Growth Performance and GIT Microbial Populations of Broiler Chickens

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 889 ◽  
Author(s):  
Jacek Trela ◽  
Bartosz Kierończyk ◽  
Veerle Hautekiet ◽  
Damian Józefiak
Keyword(s):  
Growth Performance ◽  
Bacillus Licheniformis ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Alpha Diversity ◽  
Feed Conversion ◽  
Beneficial Effects ◽  
Ph Values ◽  
Combined Use ◽  
Dietary Treatments

The aim of the study was to investigate the effect of Bacillus licheniformis and salinomycin supplementation in broiler diets as individual factors or in combination on the growth performance, GIT morphometry, and microbiota populations. Four hundred one-day-old Ross 308 chicks were randomly distributed to four dietary treatments (10 replicates, 10 birds each). The following treatments were applied: NC—no additives; NC + SAL—salinomycin addition (60 mg/kg diet), NC + PRO—B. licheniformis DSM 28710 preparation (1.6 × 109 CFU/kg; 500 mg/kg diet), and NC + SAL + PRO—combination of salinomycin and B. licheniformis. Probiotic administration resulted in improvement (p < 0.05) of the performance parameters, including body weight gain (1–10 d, and 11–22 d) and feed conversion ratio (11–22 d, 1–36 d). An interaction (p < 0.05) between experimental factors was observed in terms of lower pH values in the crop (tendency, p = 0.053) and ceca. Both factors lowered the alpha diversity and Enterobacteriaceae and promoted Bacillaceae communities in the jejunum (p < 0.05). Interactions were also observed in terms of reducing Clostridiaceae in the ceca. In conclusion, the combined use of B. licheniformis and salinomycin in broilers’ diets had beneficial effects.

Effect of a processed soy protein product on growth and gut physiology of broiler chickens

2015 ◽  
Vol 3 ◽  
Author(s):  
S.S.M. Beski ◽  
P.A. Iji
Keyword(s):  
Soy Protein ◽  
Broiler Chickens ◽  
Basal Diet ◽  
Protein Product ◽  
Early Age ◽  
Digestive Physiology ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Surface Areas ◽  
Medium Level

SummaryA 4 × 2 factorial experiment was conducted to investigate the effect of a processed soy protein (PSP) on broiler performance and digestive physiology. Four inclusion levels of PSP (0, 25, 50 or 100 g/kg in either corn or wheat-based diets) were used in the starter diets. Feed intake was significantly lower (P < 0.01) on corn-based diets than those on wheat-based diets at 35 d. Over the first 10 d, chicks on corn-based diets tended (P < 0.09) to have higher body weight (BW) than wheat-based diet chicks. Across the 35 d trial, PSP level showed a strong tendency (P < 0.06) to be related to higher BW in birds, regardless of grain type. Both grain and PSP experimental factors significantly (P < 0.01, and P < 0.001) interacted at an early age, improving BW and feed conversion ratio (FCR) for birds received high PSP on wheat-based diets. Significantly heavier (P < 0.01) small intestine and gizzard + proventriculas weights at an early age, and heavier (P < 0.001) gizzard + proventriculas and pancreas during the grower stage were recorded in birds fed the corn-based diets. At 24 d, pancreatic chymotrypsin amidase and lipase enzymes were significantly (P < 0.01) more active in chickens fed the wheat-based diet. The interaction of PSP level and the type of the grain was significant (P < 0.01) for pancreatic chymotrypsin amidase and lipase as well as jejunal maltase (P < 0.05). Both experimental factors had a significant influence on jejunum histomorphology at 24 d of age (P < 0.001). There was a significant interaction between level of PSP and the type of grain (P < 0.05) resulting in the highest villus surface areas being seen for birds fed the corn-based diet and receiving the medium level of PSP. The trial demonstrated that PSP supplement can be included at between 50 and 100 g/kg of starter diets, depending on the basal diet.

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