Performance, intestinal morphometry, and incubation parameters of broiler chickens submitted to in ovo feeding with different techniques and amino acids

2019 ◽  
Vol 99 (4) ◽  
pp. 732-740
Author(s):  
Priscila Groff-Urayama ◽  
Joselaine Padilha ◽  
Suelen Einsfeld ◽  
Simone Pertile ◽  
Mateus Gorges ◽  
...  
Keyword(s):  
Amino Acids ◽  
Broiler Chickens ◽  
Relative Weight ◽  
Control Group ◽  
In Ovo ◽  
Air Chamber ◽  
Significant Difference ◽  
Hatching Eggs ◽  
Intestinal Morphometry ◽  
In Ovo Feeding

The objective of this research was to evaluate techniques, incubation period, and effects of amino acids in ovo feeding. First, 240 hatching eggs were selected and distributed in a 2 × 3 factorial arrangement (two techniques and 3 d). The parameters of incubation, relative weight of gastrointestinal organs, and classification of embryonic mortality were evaluated. In the second stage, 720 hatching eggs were incubated with five treatments: control, methionine (20 and 30 mg), and lysine (20 and 30 mg). These animals were housed during 14 d. The animals were divided with five treatments, nine replicates, and groupings based on sex. Incubation parameters, performance, intestinal morphometry, and relative weight of digestive tract organs were evaluated. The results indicate that the technique using a 45° needle axis passing through the air chamber hinders hatchability. In the organ weighing, there was no difference between the evaluated factors. For intestinal morphometry, there was only a significant difference between the dose factor for the crypt villi and crypt diameter. To conclude, the technique using a 90° angle without passing through the air chamber is safer for the embryos. The inoculation of methionine (20 and 30 mg) obtained data similar to the control group.

scholarly journals The effects of in ovo feeding of glutamine in broiler breeder eggs on hatchability, development of the gastrointestinal tract, growth performance and carcass characteristics of broiler chickens

2016 ◽  
Vol 59 (2) ◽  
pp. 235-242 ◽  
Author(s):  
Mehdi Salmanzadeh ◽  
Yahya Ebrahimnezhad ◽  
Habib Aghdam Shahryar ◽  
Jamshid Ghiasi Ghaleh-Kandi
Keyword(s):  
Gastrointestinal Tract ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Carcass Characteristics ◽  
Abdominal Fat ◽  
Control Group ◽  
Villus Height ◽  
In Ovo ◽  
Crypt Depth ◽  
In Ovo Feeding

Abstract. The aim of the present study was to investigate the effect of in ovo feeding (IOF) of glutamine on hatchability, development of the gastrointestinal tract, growth performance and carcass characteristics of broiler chickens. Fertilized eggs were subjected to injections with glutamine (Gln) (10, 20, 30, 40 or 50 mg dissolved in 0.5 mL of dionized water) on day 7 of incubation. Hatchability, growth performance, carcass characteristics (carcass weight and relative weights of breast, thigh, heart, liver, gizzard, abdominal fat, intestine, pancreas and spleen) and jejunal morphometry (measurement of villus height and width and crypt depth) were determined during the experiment. The weight of newly hatched chickens was significantly greater in groups with Gln injection than in control and sham groups. But IOF caused lower hatchability than in the control group (non-injected eggs) (p < 0.05). Chickens from IOF of Gln showed better weight gain and feed conversion ratio (0–42 days of age), when compared to chickens hatched from control and sham groups. The IOF of Gln significantly increased villus height, villus width and crypt depth at hatch period and villus height at 42 days of age. In addition, carcass weights and relative weights of breast, thigh and gizzard were also markedly increased in chickens treated in ovo with Gln; whereas heart, liver, abdominal fat, intestine, pancreas and spleen were not significantly altered at the end of the experimental period. These data suggest that the IOF of Gln may improve jejunum development, leading to an increased nutrient assimilation and consequently to greater performance in broiler chickens.

scholarly journals The effect of egg powder inclusion in the pre-starter diet on the immune response of male broiler chickens

2013 ◽  
Vol 56 (1) ◽  
pp. 527-535 ◽  
Author(s):  
L. Esmailzadeh ◽  
M. Shivazad ◽  
A. A. Sadeghi ◽  
M. Karimi-Torshizi
Keyword(s):  
Immune Response ◽  
Disease Virus ◽  
Antibody Titre ◽  
Broiler Chickens ◽  
Relative Weight ◽  
Control Group ◽  
Infectious Bronchitis ◽  
Significant Difference ◽  
Bursal Disease ◽  
Egg Powder

Abstract. A completely randomised design was performed to evaluate the effect of inclusion of egg powder in the pre-started diet (1–7 day age) on the immune response of male broiler chickens. Experimental pre-starter diets formulated to have 0, 20, 40 or 60 g/kg egg powder. The relative weight of lymphoid organs (spleen and bursa) was reduced, in days 7 and 42 of age, by graded inclusion of egg powder in the pre-starter period (P≤0.05). The highest antibody titre against Newcastle disease virus (NDV) and Infectious bronchitis virus (IBV) in days 7 and 42 of age was for chickens fed the diet containing 60 g/kg egg powder in the pre-starter diet (P≤0.05). At day 7 of age, birds fed the diet containing egg powder had a higher antibody titre against Infectious bursal disease virus (IB) compared to the control group (P≤0.05), but at day 42 of age, there was no significant difference between the treatments (P>0.05). There was no difference (P>0.05) among the treatments for the titre against sheep red blood cells and immune response against dinitrochlorobenzene. It was concluded that the inclusion of egg powder to the pre-starter diet could significantly enhance the immune response of the male broiler chickens.

scholarly journals The effect of herbal supplements on development of internal organs and chemical composition of broilers muscles

2021 ◽  
Vol 6 (2) ◽  
pp. 141-150
Author(s):  
A. I. Nufer ◽  
E. V. Shatskikh
Keyword(s):  
Amino Acids ◽  
Broiler Chickens ◽  
Relative Weight ◽  
Poultry Meat ◽  
Feed Additive ◽  
Control Group ◽  
Internal Organs ◽  
Absorption Function ◽  
Leg Muscles ◽  
Physiological Limits

The present article presents data on effectiveness of adding a phytobiotic feed additive into the diet of broiler chickens, either additionally or replacing the feed antibiotic in the chicken fodder. It has been established that the introduction of a phytobiotic feed additive into the broilers’ diet, both additionally and by replacing the feed antibiotic, provided positive effect on poultry meat quality and gave no negative effect on development of internal organs. By the end of fattening the relative weight of heart, lungs, kidneys, gizzard and intestines in broilers, which consumed the antibiotics-free diet with addition of researched preparation, was higher than in the control group and in the 1st experimental group. At the same time the length of the intestine in researched group significantly exceeded the control group parameters. These changes ranged within the physiological norm, which may indicate the best detoxification capabilities of the chicken body and the activation of enhanced intestinal absorption function. Additional use of the experimental feed additive in formulation of feed for broiler chickens was accompanied by a decrease in total amount of amino acids in broilers’ pectoral and leg muscles within acceptable physiological limits. At the same time, a significant decrease, compared with the control parameters, was noted in relation to content of histidine and isoleucine in pectoral muscles, and content of proline in leg muscles. The use of the researched additive as a substitute for a feed antibiotic in composition of mixed feed for broilers decreased the total amount of amino acids in broilers’ breast muscle, compared with the control group, and increased level of amino acids in leg muscles. The significant decrease in content of histidine and arginine in the pectoral muscles and proline in the leg muscles was noted. The observed changes varied within acceptable physiological norm. In the experimental groups the energy value of meat was increased.

scholarly journals The Effect of Zingiber officinale on the Spleen Tissue and Antibody Titer of Broiler Chickens

2019 ◽  
Vol 36 (01) ◽  
pp. 046-050
Author(s):  
Alireza Taghdisi ◽  
Sajjad Hejazi
Keyword(s):  
Broiler Chickens ◽  
Zingiber Officinale ◽  
Control Group ◽  
White Pulp ◽  
Broiler Chicks ◽  
Pulp Tissue ◽  
Tissue Samples ◽  
Serum Factors ◽  
Spleen Tissue ◽  
Significant Difference

Introduction Increasing the immune system's function of fighting infectious diseases is very important in the poultry industry. Ginger, scientifically known as Zingiber officinale, belongs to the Zingiberaceae family. The use of ginger in the diet of poultry increases serum levels of superoxide dismutase enzymes and glutathione peroxidase, which are considered to be important antioxidant enzymes. The main objective of the present study is to evaluate the effect of ginger on the spleen tissue of broiler chickens. Material and Methods The specimens comprised 2 groups of 20 Ross breed broiler chicks, for 42 days and were then, examined and tested. The diet was supplemented with 1 g/kg of ginger powder from the beginning of the rearing period. Blood samples of the chicks were randomly collected to measure the levels of hemagglutination (HI). The removed spleens were fixed with 10% formalin buffer. The specimens were cut in 5-micron diameters and stained with hematoxylin and eosin. Results and Conclusion There was a statistically significant difference in the mean of HI blood titers between the chicks in the growth period and final period groups (p < 0.05). The white-pulp tissue samples were more clearly seen in the treatment group than in the control group, and also, it was observed that the wall of the central artery of the white pulp was thicker in the ginger-treated group as compared with the control group. The nutritional value of ginger may vary. Thus, it is necessary to investigate the effect of this plant final on weight gain; the serum factors associated with the metabolic chart, and the response of the immune system to this plant.

scholarly journals Calcium Carbonate Nanoparticles—Toxicity and Effect of In Ovo Inoculation on Chicken Embryo Development, Broiler Performance and Bone Status

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 932
Author(s):  
Arkadiusz Matuszewski ◽  
Monika Łukasiewicz ◽  
Jan Niemiec ◽  
Maciej Kamaszewski ◽  
Sławomir Jaworski ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Embryo Development ◽  
Bone Quality ◽  
Chicken Embryo ◽  
Broiler Chickens ◽  
Selection Procedure ◽  
High Specificity ◽  
Control Group ◽  
In Ovo

The use of intensive selection procedure in modern broiler chicken lines has led to the development of several skeletal disorders in broiler chickens. Therefore, current research is focused on methods to improve the bone quality in birds. In ovo technology, using nanoparticles with a high specificity to bones, is a potential approach. The present study aimed to evaluate the effect of in ovo inoculation (IOI) of calcium carbonate nanoparticles (CCN) on chicken embryo development, health status, bone characteristics, and on broiler production results and bone quality. After assessing in vitro cell viability, the IOI procedure was performed with an injection of 500 μg/mL CCN. The control group was not inoculated with CCN. Hatchability, weight, and selected bone and serum parameters were measured in embryos. Part of hatchlings were reared under standard conditions until 42 days, and production results, meat quality, and bone quality of broilers were determined. CCN did not show cytotoxicity to cells and chicken embryo and positively influenced bone parameters of the embryos and of broilers later (calcification) without negatively affecting the production results. Thus, the IOI of CCN could modify the molecular responses at the stage of embryogenesis, resulting in better mineralization, and could provide a sustained effect, thereby improving bone quality in adult birds.

scholarly journals АМИНОКИСЛОТНЫЙ СОСТАВ МЯСА ЦЫПЛЯТ-БРОЙЛЕРОВ ПРИ ПРИМЕНЕНИИКОРМОВЫХ ДОБАВОК «АБИОТОНИК» И «ЧИКТОНИК»

2019 ◽  
pp. 10-15
Author(s):  
F.I. Vasilevich ◽  
V.M. Bachinskaya ◽  
Yu.V. Petrova
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Broiler Chickens ◽  
Live Weight ◽  
Feed Additives ◽  
Poultry Meat ◽  
Control Group ◽  
Normal Range

Экспериментальные исследования кормовых добавок Абиотоник и Чиктоник проводили на базе вивария кафедры эпизоотологии и организации ветеринарного дела, а ветеринарносанитарную экспертизу продуктов убоя цыплятбройлеров проводили на кафедре паразитологии и ветеринарносанитарной экспертизы ФГБОУ ВО МГАВМиБ МВА имени К.И. Скрябина и ФГБНУ ФНЦ ВИЭВ РАН, аминокислотный состав мяса перепелов в Государственном бюджетном учреждении Краснодарского края Кропоткинская краевая ветеринарная лаборатория . Из цыплят в суточном возрасте кросса Кобб500 было сформировано три группы по 10 голов в каждой две опытные и контрольная опытным группам выпаивали кормовые добавки из расчета 1 мл/кг живой массы птицы до 50 суток выращивания, убой птицы проводили на 56 сутки. Тушки птицы после 24х часов созревания в холодильной камере при температуре 4 С подвергали исследованиям по общепринятым методикам: ГОСТ Р 519442002. Мясо птицы. Методы органолептических показателей, температуры и массы ГОСТ 314702012. Мясо птицы, субпродукты и полуфабрикаты из мяса птицы. Методы органолептических и физикохимических исследований аминокислотный состав мяса исследовали согласно М 0438 2009. Корма, комбикорма и сырье для их производства. Методика измерений массовой доли аминокислот методом капиллярного электрофореза с использованием системы капиллярного электрофореза Капель. Применение кормовых добавок в дозе 1 мл/кг живой массы способствовало увеличению живой массы птицы при применении Абиотоника на 54,23, а при применении Чиктоника на 37,70 по отношению к контролю. Во всех исследуемых пробах количество ЛЖК находится в пределах нормы и составило: в 1й опытной 1,390,03 мг КОН, во 2й опытной 1,420,04 мг КОН и в контрольной группе 1,810,06 мг КОН, что говорит о свежести и доброкачественности мяса. Значение рН мяса цыплятбройлеров находилось в трех группах в пределах нормы и не превышало 6,0. По результатам проведенных исследований аминокислотного состава красной и белой мышечной ткани цыплятбройлеров было установлено, что применение кормовой добавки Абиотоник способствовало увеличению незаменимых аминокислот на 12,14 и на 22,84 соответственно, а заменимых на 8,11 и на 22,51 по отношению к контрольной группеExperimental studies of feed additives Abiotonik and Chiktonik were conducted on the basis of the vivarium of the Department of Epizootology and Organization of Veterinary, and the veterinarysanitary examination of the products of slaughter broiler chickens was carried out at the Department of Parasitology and VeterinarySanitary Expertise of FSBEI HE MGAVMiB MBA named after KI Scriabin and the FSBI of the Federal Research Center of the VIEW RAS, the amino acid composition of quail meat in the State budget institution of the Krasnodar Territory Kropotkinskaya regional veterinary laboratory. Three groups of 10 animals each were formed from chickens at the daily age of the Cobb500 crosscountry, the experimental groups were fed feed additives at the rate of 1 ml / kg of live weight of poultry for up to 50 days of cultivation, and poultry were slaughtered for 56 days. Poultry carcasses after 24 hours of maturation in a refrigerating chamber at a temperature of 4 C were subjected to research according to generally accepted methods: GOST R 519442002. Poultry meat Methods of organoleptic characteristics, temperature and mass GOST 314702012 Poultry meat, offal and semifinished products from poultry meat. Methods of organoleptic and physicochemical studies) Amino acid composition of meat was carried out according to M 04382009. Feed, feed and raw materials for their production. Methods of measuring the mass fraction of amino acids by capillary electrophoresis using the Cappel capillary electrophoresis system. The use of feed additives in a dose of 1 ml / kg of live weight contributed to an increase in live weight of the bird when using Abiotonics by 54.23, and when using Chictonics by 37.70 relative to the control. In all studied samples, the number of VFAs is within the normal range and amounted to 1.39 0.03 mg KOH in 1 experimental group, 1.42 0.04 mg KOH in 2 experimental groups and 1.81 0.06 in the control group. mg KOH, which speaks of the freshness and goodness of meat. The pH of broiler chicken meat was in three groups within the normal range and did not exceed 6.0. According to the results of studies of the amino acid composition of red and white muscle tissue of broiler chickens, it was found that the use of the feed additive Abiotonik contributed to an increase in essential amino acids by 12.14 and by 22.84, and by replaceable ones by 8.11 and by 22.51 relative to the control group.Экспериментальные исследования кормовых добавок Абиотоник и Чиктоник проводили на базе вивария кафедры эпизоотологии и организации ветеринарного дела, а ветеринарносанитарную экспертизу продуктов убоя цыплятбройлеров проводили на кафедре паразитологии и ветеринарносанитарной экспертизы ФГБОУ ВО МГАВМиБ МВА имени К.И. Скрябина и ФГБНУ ФНЦ ВИЭВ РАН, аминокислотный состав мяса перепелов в Государственном бюджетном учреждении Краснодарского края Кропоткинская краевая ветеринарная лаборатория . Из цыплят в суточном возрасте кросса Кобб500 было сформировано три группы по 10 голов в каждой две опытные и контрольная опытным группам выпаивали кормовые добавки из расчета 1 мл/кг живой массы птицы до 50 суток выращивания, убой птицы проводили на 56 сутки. Тушки птицы после 24х часов созревания в холодильной камере при температуре 4 С подвергали исследованиям по общепринятым методикам: ГОСТ Р 519442002. Мясо птицы. Методы органолептических показателей, температуры и массы ГОСТ 314702012. Мясо птицы, субпродукты и полуфабрикаты из мяса птицы. Методы органолептических и физикохимических исследований аминокислотный состав мяса исследовали согласно М 0438 2009. Корма, комбикорма и сырье для их производства. Методика измерений массовой доли аминокислот методом капиллярного электрофореза с использованием системы капиллярного электрофореза Капель. Применение кормовых добавок в дозе 1 мл/кг живой массы способствовало увеличению живой массы птицы при применении Абиотоника на 54,23, а при применении Чиктоника на 37,70 по отношению к контролю. Во всех исследуемых пробах количество ЛЖК находится в пределах нормы и составило: в 1й опытной 1,390,03 мг КОН, во 2й опытной 1,420,04 мг КОН и в контрольной группе 1,810,06 мг КОН, что говорит о свежести и доброкачественности мяса. Значение рН мяса цыплятбройлеров находилось в трех группах в пределах нормы и не превышало 6,0. По результатам проведенных исследований аминокислотного состава красной и белой мышечной ткани цыплятбройлеров было установлено, что применение кормовой добавки Абиотоник способствовало увеличению незаменимых

scholarly journals The Effect of Replacing Dried Meal Worm with Soybean Meal on Growth Performance and Carcass Characteristics of Broiler Chickens

2021 ◽  
Author(s):  
Navid Naderi Boroojerdi ◽  
Mostafa Rajabzadeh
Keyword(s):  
Growth Performance ◽  
Soybean Meal ◽  
Broiler Chickens ◽  
Relative Weight ◽  
Carcass Characteristics ◽  
Basal Diet ◽  
Control Treatment ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Significant Difference

Abstract An experiment was conducted on 240 one-day old male (Ross308) chicken to the effect of substitution of dried mealworm (Tenebrio molitor) with soybean meal on growth performance and carcass characteristics broiler chicks. Chicks fed in a completely randomized design with 4 replicate cages (12 birds per cage). Five dietary treatments used: 1- Control treatment: Basal diet based on corn-soybean meal without adding dried mealworm, 2- Replacement of 5% dried mealworm with soybean meal in the base diet, 3- Replacement of 10% dried mealworm with soybean meal in the base diet, 4- Replacement of 15% dried mealworm with soybean meal in the base diet and 5- Replacement of 20% dried mealworm with soybean meal in the base diet. The results of the experiment showed that 3rd and 4th treatments with a substitution of 10 and 15 percent showed a higher mean weight gain and a daily gain, but their feed intake was lower comparing other treatments, and finally, the feed conversion ratio showed a significant decrease with respect to control treatment using these replacement levels. At 21 and 42 days of age, carcass yield and relative weight of the breasts showed significant increases in treatments 3 and 4, and other characteristics of chicken carcasses were not affected by the test treatments. The experiment showed that replacing soybean meal with 10% and 15% worm powder significantly improved the performance of broiler chickens, but no significant difference was found between the two levels.

scholarly journals A 90-Day Oral Toxicity of Hydroethanolic Root Extract of Carissa spinarum in Wistar Rats

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Komlan M. Dossou-Yovo ◽  
Aboudoulatif Diallo ◽  
Povi Lawson-Evi ◽  
Yendubé T. Kantati ◽  
Tchin Darré ◽  
...  
Keyword(s):  
Body Weight ◽  
Biochemical Parameters ◽  
Wistar Rats ◽  
Hematological Parameters ◽  
Relative Weight ◽  
Control Group ◽  
Root Extract ◽  
Weight Changes ◽  
Oral Toxicity ◽  
Significant Difference

Background. Herbal medication is a worldwide and ancient practice, mostly in developing countries, where a large part of the population is involved in this practice. Hence, studies must be conducted to evaluate their safety and efficiency to avoid or prevent toxicological risks due to their usage. In Togo, Carissa spinarum is a medicinal plant belonging to Apocynaceae family, used as an aphrodisiac or to heal some ailments including malaria, sickle cell anemia, hypertension, pain, and asthma. Notwithstanding its several ethnomedicinal benefits, just a few toxicological data associated with its chronic use are available. Objective. Therefore, this study aims to assess the toxicity of an ethanolic root extract of Carissa spinarum in Wistar rats. Methods. The 90-day oral toxicity process following OECD TG 408 guidelines is used. Male Wistar rats received Carissa spinarum root hydroethanolic extract at 500 and 1000 mg/kg for 90 days by oral gavage. Body weight changes, hematological and blood biochemical parameters, organ weight changes, malondialdehyde as a lipoperoxidation marker expressed according to tissue proteins, and histopathology of vital organs were assessed. Results. No signs of toxicity or mortality were observed during the 90 days experiment. Hematological parameters have not shown any treatment-related abnormalities. According to biochemical parameters, an increase in the chloride ion level was observed at 1000 mg/kg p < 0.01 . There was no significant difference between the treated groups and the control group concerning the malondialdehyde concentration, body weight, and organ relative weight. No changes in necropsy and histopathology of vital organs associated with extract treatment were observed. Conclusion. The results indicated that an ethanolic root extract of Carissa spinarum does not cause adverse effects, which can lead to Wistar rats’ death after 90-day oral administration at 500 and 1000 mg.

scholarly journals Effects of in ovo feeding of N-acetyl-L-glutamate on early intestinal development and growth performance in broiler chickens

2020 ◽  
Vol 99 (7) ◽  
pp. 3583-3593
Author(s):  
Jiguang Wang ◽  
Jing Lin ◽  
Jing Wang ◽  
Shugeng Wu ◽  
Guanghai Qi ◽  
...  
Keyword(s):  
Growth Performance ◽  
Broiler Chickens ◽  
Intestinal Development ◽  
In Ovo ◽  
In Ovo Feeding

scholarly journals Evaluation of Growth and Carcass Characteristics of Broiler Chickens (Cobb 500) Feed on Different Level of Organic Acids Inclusion in Diet at Parwanipur

2019 ◽  
Vol 36 ◽  
pp. 137-147
Author(s):  
A. K. Jha ◽  
Md. H. Azad ◽  
Md.S. N. Ali ◽  
P. Alam ◽  
N. Sheikh ◽  
...  
Keyword(s):  
Weight Gain ◽  
Organic Acids ◽  
Formic Acid ◽  
Broiler Chickens ◽  
Agricultural Research ◽  
Body Weight Gain ◽  
Control Group ◽  
Research Station ◽  
Body Parts ◽  
Significant Difference

 An experiment was carried out to evaluate the effect of different level of organic acids on productive traits, carcass yields and body parts (Thigh, Back, Neck, wings and Breast) of broiler chicken. This experiment was conducted at Regional Agricultural Research Station, Parwanipur, Bara for 41 days to test the effect of organic acids inclusion in broiler feed and its effect on growth performance and carcass study. Altogether 225 day old Cobb-500 broiler birds were procured from Shivam Hatchery, Birgung and divided into 5 treatments with 3 replications (15 birds in each replication) by using completely randomized design. Concentrate feed was purchased from Posak Feed industry, Birgung. Control group (T1) was feed without organic acid inclusion and whereas T2, T3, T4 and T5 groups were fed concentrate mixture mixed with different combination of organic acids @ 400ml/ per 100 kg feed, respectively. Experimental birds were provided adlib amount of grower feed (B1) for 21 days and that after finisher feed (B3) for 20 days and had easily access to drinking water. Feed intake was recorded daily and body weight gain was measured in 7 days interval. Experiment revealed that highest weight gain was observed in T2 (2.6 kg) followed by T3 (2.5) where combination of organic acids were formic acid 65% + propionic acid 35% and formic acid 65% and citric acid 35%, respectively, however, it was not significant among diet groups. From every treatment group each birds were selected for carcass and body parts study. The study showed significant difference (P<0.5) in carcass quantity and body parts of the birds between the treatment groups. The dressing percentage of T1, T2, T3, T4 and T5 were 68.96%, 67.87%, 70.38%, 69.88% and 69.67% respectively. Experiment suggested that further study should be carried out to precise the appropriate level of organic acids inclusion and higher cost benefit ratio.

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