scholarly journals The quality and safety of eggs obtained from laying hens after their experimental poisoning with sodium bromide

2020 ◽  
Vol 6 (1) ◽  
pp. 25-30
Author(s):  
О. Т. Kutsan ◽  
O. L. Orobchenko ◽  
Yu. M. Koreneva
Keyword(s):  
Laying Hens ◽  
Clinical Manifestations ◽  
Sodium Bromide ◽  
Control Group ◽  
Human Consumption ◽  
Egg Mass ◽  
Quality And Safety ◽  
Bromine Content ◽  
Poultry Eggs ◽  
Experimental Group

The purpose of this study was to determine the quality and safety of eggs obtained from laying hens after their experimental poisoning with sodium bromide. According to the principle of analogues, three experimental and one control group of laying hens (n = 15) were formed. The background bromine content of the compound feed was 2.0 mg/kg. An aqueous solution of sodium bromide was added daily to the feed of the chickens of the experimental groups for 28 days, followed by the observation of the birds for 14 days without its addition. Chickens of the 1st experimental group received bromine with feed at a dose of 10.0 mg/kg, 2nd — 50.0 mg/kg, 3rd — 250.0 mg/kg of feed. During the experiment, eggs were collected daily, their quality was determined according to the requirements of DSTU 5028:2008 ‘Hen’s Eggs for Human Consumption. Specifications’ and the rules for the veterinary and sanitary examination of poultry eggs. In addition, the bromine content was determined separately in egg white, yolk, and shell. Bromine content was determined by X-ray fluorescence analysis. Statistical processing of research results was conducted. Under the conditions of the chronic experiment, clinical manifestations of poisoning in chickens were not observed. No significant deviation from the control group was observed in productivity, egg mass, white to yolk mass ratios, and pH values of yolk and white. However, an uneven distribution of the eggs by category was established. Starting from the 2nd day of the experiment, bromine was excreted in laying hens with egg whites. The maximum value was observed on the 18th–28th days of the experiment: in the 1st experimental group a reliable excess 2.5 times of bromine content relative to the control was observed; in 2nd — 7.2 times, and in 3rd — 26.9 times. Thus, eggs from chickens of all groups conformed to DSTU 5028:2008 and the rules for the veterinary and sanitary examination of poultry eggs. However, the bromine content in the eggs of all experimental groups reliably exceeded the reference value for 28 days when sodium bromide was received with feed. Even 14 days after the experiment, the content of the element reliably exceeded the control value in the eggs of chickens from the 2nd and 3rd experimental groups, which may indicate the ability of bromine to cumulate

scholarly journals Performance, Biochemical Profile and Antioxidant Activity of Hens Supplemented with Addition of Milk Thistle (Silybum marianum) Seed Cakes in Diet

2019 ◽  
Vol 67 (4) ◽  
pp. 993-1003 ◽  
Author(s):  
Ondřej Šťastník ◽  
Eva Mrkvicová ◽  
Leoš Pavlata ◽  
Andrea Roztočilová ◽  
Barbora Umlášková ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Biochemical Parameters ◽  
Laying Hens ◽  
Control Group ◽  
Egg Mass ◽  
Milk Thistle ◽  
Feed Mixture ◽  
Blood Biochemical Parameters ◽  
Blood Biochemical ◽  
Experimental Group

The aim of this study was to evaluate the effect of milk thistle seed cakes addition in laying hens diet to performance, blood biochemical parameters and antioxidant activity. A total of 30 Bovans Brown hens were included to the experiment. The trial was performed from the age of 69 weeks to 80 weeks of hens age. The experimental group received feed mixture containing 7% milk thistle seed cakes. Control group received feed mixture without milk thistle seed cakes. After the 69th week of age, the laying hens in the experimental group reached a higher number of eggs and produced more egg mass compared to the control group. In the evaluation of the egg quality parameters, higher Haugh units, a higher millimeter height of the egg and thinner eggshell in the group receiving 7% of the seed cakes were found. When evaluating health indicators, higher antioxidant activity was found in the experimental group. Blood biochemical parameters was without any differences.

Use of the feed additive “Toxinon” in feeding of replacement young chickens and laying hens

2022 ◽  
pp. 34-49
Author(s):  
T. A. Poleva ◽  
◽  
V. A. Tereshchenko ◽  
Keyword(s):  
Growth And Development ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
The Body ◽  
Production Costs ◽  
Feed Additive ◽  
Control Group ◽  
Egg Mass ◽  
Experimental Group

At the present time of the development of industrial poultry farming, the main tasks are to increase the productivity of poultry, reduce production costs and improve its quality. Under practical conditions, there is a shortage of minerals in compound feed for poultry, which leads to a violation of metabolism in the body, slowing down growth and development, deterioration of the work of organs and systems, a decrease in productivity and its quality, and an increase in the prime-cost of production. The purpose of the research was to study the effectiveness of the use of the feed additive “Toxinon” in feeding of replacement young chickens and laying hens. The research has been carried out under the conditions of OOO “Bogotolskaya Poultry Farm” in the Bogotolsky area in the Krasnoyarsk Territory. Comprehensive studies have been conducted to study the effect of the feed additive “Toxinon” on the growth and development, productivity and metabolism of replacement young chickens and laying hens of the industrial herd of the cross “Haysex brown”. The influence of different dosages of the feed additive “Toxinon” on the growth rate, livestock livability, digestibility and use of feed nutrients, egg productivity, egg quality, hematological and biochemical blood parameters of replacement young chickens and laying hens has been studied. The laying hens of the 3rd experimental group were distinguished by the highest egg productivity during the experiment period, which exceeded the control group in terms of the gross number of eggs by 6,4 %, the intensity of egg production by 5,02 abs.%, egg weight by 3,0 % (P > 0,95), the yield of egg mass on the average laying hen by 9,12 %. At the same time, expenditures of feed in the 3rd experimental group have decreased compared to the control group by 7,3 % for 10 eggs, by 9,2 % for 1 kg of egg mass. It has been found that in feeding replacement young chickens and laying hens, the most effective use of the feed additive “Toxinon” in the dosage of 0,25 % of the weight of the feed mixture (2,5 kg/ton of feed).

The use of organic sources of chromium in the feeding of laying hens

2021 ◽  
pp. 13-21
Author(s):  
S. I. Nikolaev ◽  
N. M. Kostomakhin ◽  
I. Yu. Danilenko ◽  
E. V. Kornilova ◽  
A. V. Kolodyazhny ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Laying Hens ◽  
Feed Additive ◽  
Control Group ◽  
Egg Mass ◽  
Mineral Complex ◽  
Mineral Additive ◽  
Coeffi Cients ◽  
Experimental Group

The purpose of the research was to study the eff ect of the mineral complex “Availa Chrome 1000”, which used in the feeding of laying hens of the highly productive cross Highsex Brown under the conditions of the Research Center for the Safety and Eff ectiveness of Feed and Additives of the Volgograd State Agrarian University. For the experiment two groups of laying hens (control and experimental) have been formed with 70 heads in each. The diff erence between the groups was that the laying hens of the control group received a complete farm diet, and into the diet of the laying hens of the experimental group the feed additive “Availa Chrome 100” in the amount of 300 g/t of compound feed was introduced. It has been found during the study of the coeffi cients of digestibility of nutrients of the diet in the experimental poultry that the best digestibility diff ered laying hens of the experimental group where the additive “Avila Chrome 1000” in the amount of 300 g/t of compound feed has been put into the basic diet. It has been found as a result that the tested mineral additive increases the digestibility of dry matter by 3,09 %, organic matter by 2,59 %, crude protein by 1,35 %, crude fat by 2,16 %, crude fi ber by 0,63 %. The studied feed additive had a stimulating eff ect on the formation of red blood cells the level of which increased in the blood of poultry of the experimental group by 2,87 %. It has been found that in laying hens of the experimental group the level of hemoglobin was higher by 6,25 %. The use of the mineral complex allowed to improve the egg productivity of poultry by 3,3 % and increase the egg mass by 2,66 %. The inter-group economic eff ect for the period of experiment reached 573,43 rubles, so we believe that the use of organic chromium additives is economically feasible.

The use of feed additive Supervita-M in the diets of laying hens

2021 ◽  
pp. 52-59
Author(s):  
A. S. Ivanova ◽  
A. D. Chifileva
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Group Analysis ◽  
Blood Parameters ◽  
Feed Additive ◽  
Control Group ◽  
Egg Mass ◽  
Noticeable Increase ◽  
Balanced Diet ◽  
Experimental Group

For the normal life of laying hens and their egg production not only good conditions and a properly balanced diet are necessary, but also the presence of vitamins and minerals in the feed in the right amount. The purpose of this work was to study the eff ectiveness of using the feed additive Supervita-M in the diets of laying hens. The research has been carried out under the conditions of LLC “Nizhnevartovskaya poultry Farm” on laying hens of the industrial herd of the cross High-Line Brown. Egg production of laying hens during the experiment period was higher in the experimental group by 3 %. The intensity of egg production in the experimental group that received the feed additive Supervita-M was also higher than in the control group. According to the yield of egg mass per average laying hen, the best results have been obtained in the experimental group, they exceeded the similar indicators of the control group by 0,6 kg. When tested the weight of the egg obtained from the experimental hens was in the range of 60–61 g. At the end of the experiment there was a noticeable increase in this indicator in laying hens that received the vitamin and mineral additive in addition to the main diet. The experimental group exceeded the control group by 8,3 % by egg weight. Positive results have been obtained for the livability of laying hens. This indicator in the experimental group was higher by 6,6 % compared to the control group. Analysis of the blood parameters of laying hens has shown that the use of the additive aff ected the increase in red blood cells. So, at the beginning of the experiment this indicator was 2,2–2,5×10[sup]12[/sup]/l, and at the end – 3,8–3,9 ×10[sup]12[/sup]/l.

scholarly journals Correction of calcium norms during the feeding day of laying-hens

2021 ◽  
pp. 42-47
Author(s):  
P. Karkach ◽  
M. Kostiuk ◽  
Yu. Mashkin
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Calcium Content ◽  
Control Group ◽  
Egg Mass ◽  
Complex Process ◽  
Production Period ◽  
Chicken Eggs ◽  
Experimental Group

Highdem and for eggs requires a significant increase in production volumes subject to the standards of their quality. One of the components of the egg providing its safety and quality is the shell, which accounts for about 10-12% mass of the egg. The formation of eggs in chickens is a complex process, which is carried out within 24-27 hours, from which about 17-20 hours is given to form the shell. Since the main number of eggs chickens are demolished in the first half of the day, most of the calcification period of the egg shel falls on the dark period of day when the chicken stops to eat. A study was conducted to in vestigate the influence of an increased dose of calcium in the form of limestone particles when feeding it in the afternoon on the productivity and quality of chicken eggs. For this, two groups of laying-hens were formed, the mix feed for which consisted of the same components of cereal and protein-vitamin feeds, but was distingueished by calcium content, namely: in the control group in the mix feed, which was fed both in the morning and in the afternoon, was 3,5% calcium in the form of limestone thin and coarse grinding. The chickens of the experimental group in the morning were fed by mix feed with a calcium content of 1.5%, and in the afternoon - with a calcium content of 7% in the form of coarse limestone. Based on the research, it was found that during the 30-week period of productivity, the survival of chickens in the experimental groups was the same. Chickens of the experimental group reached 95% egg production at the age of 186 days, which his 5 days before the control group. Egg production on the middle and initial laying-hens in the experimental group for the whole production period was 178,4 eggs and 173,3 eggs, which is 6,2 and 7,0 eggs more than in the control group. The feeding of the chickens of the experimental group in the afternoon of mix feeds with an elevated calcium content contributed to an increase in the mass of eggs by 1,7 g, the exit of the egg mass on the middle and the initial laying-hens on 0,66 and 0,7 kg, the number of food eggs categories XL and L on 0,5 and 5.4%, compared with the control group of chickens, which was fed both in the morning and in the afternoon, a mix feed containing 3,5% calcium in the form of limestone thin and coarse grinding. Key words: laying-hens, mix feed, calcium, egg production, eggs mass, eggs quality.

The use of poly additive Nabicat in the feeding of laying hens

2020 ◽  
pp. 44-55
Author(s):  
S. Nikolaev ◽  
L. Andreenko
Keyword(s):  
Laying Hens ◽  
Optimal Dose ◽  
Control Group ◽  
Nutrient Metabolism ◽  
Volgograd Region ◽  
Mineral Components ◽  
Environmentally Safe ◽  
Experimental Group ◽  
Poultry Farming

In modern poultry farming the most urgent tasks are to search for and test new environmentally safe feed and economically justifi ed additives that stimulate productivity, positively aff ect the health of poultry, and consequently increase the livability of livestock and other important zootechnical traits. In order to maintain physiologically normal processes of life, metabolism and increase the level of productivity of poultry it needs mineral components and their chelated compounds. The purpose of this work was to increase the egg productivity of poultry by using the silicon-containing poly additive Nabicat in feeding young hens and laying hens. The researches have been carried out on the poultry cross Highsex Brown under the environments in CJSC “Poultry Farm “Volzhskaya” in the Sredneakhtubinsky area in the Volgograd region. In this paper, The optimal dose of the introduction of the silicon-containing poly additive Nabicat in the diets of young and laying hens of the cross Highsex Brown has been scientifi cally justifi ed and the biological value of using an organic form of silicon has been determined. The positive infl uence of the optimal dose of poly additive on growth, consumption, and digestibility, nutrient metabolism in the poultry body, as well as egg productivity and quality of the resulting egg has been revealed. Thus, the average egg productivity per 1 hen in the control group during the experiment period was 321,3 pcs., and in the 1st, 2nd and 3rd experimental groups it was 322,6 pcs., 325,8 and 325,7 pcs., which was higher than in the control group by 0,40 %, 1,40 and 1,37 %, respectively. The average egg weight in the 1st experimental group exceeded the control by 0,43 g or 0,68 %, in the 2nd experimental group by 1,16 g or 1,84 %, in the 3rd experimental group by 0,81 g or 1,28 %. The economic eff ectiveness of using the organic silicon additive in the composition of Nabicat poly additive in the feeding of laying hens has been proved. The economic eff ect due to the use of diff erent doses of the introduction of silicon-containing poly additive Nabicat in compound feed for laying hens of the 1st experimental group was 141,66 rubles, the 2nd experimental group 962,76 rubles, and the 3rd experimental group 821,89 rubles.

scholarly journals The Influence of the Mineral-Microbial Preparation on Ammonia Concentration and Productivity in Laying Hens Houses

Atmosphere ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 751 ◽  
Author(s):  
Remigiusz Gałęcki ◽  
Michał Dąbrowski ◽  
Tadeusz Bakuła ◽  
Kazimierz Obremski ◽  
Adriana Nowak ◽  
...  
Keyword(s):  
Body Weight ◽  
Linear Correlation ◽  
Egg Production ◽  
Laying Hens ◽  
Animal Health ◽  
The Body ◽  
Control Group ◽  
Microbial Composition ◽  
Experimental Group ◽  
Campylobacter Spp

The aim of this study was to evaluate the influence of the biopreparation Deodoric® on ammonia (NH3) concentration, performance, and hygiene standards in laying hen (ROSS-308) production. Statistically significant differences in NH3 concentration and the body weight of laying hens were observed between the control group (C) and the experimental group (E) where Deodoric® was applied at the set dose. In the control group, an increase in NH3 concentration could have contributed to the decrease in the body weight of laying hens, egg production, and % hen day egg production, whereas no such correlations were observed in the experimental group. A moderate linear correlation between NH3 concentration vs. humidity (r = 0.68), air flow (r = 0.48) and weakly linear correlation between NH3 concentration and age of birds (r = 0.27) was noted in group C. In group E, NH3 concentration vs. temperature (r = 0.27) and humidity (r = 0.14) were weakly correlated. Statistical analysis of changes in the microbial counts isolated from manure revealed a significant decrease of mesophilic microorganisms on day 28 decrease of Campylobacter spp. days 14 and 84 in group E. However, for the entire experimental model no statistically significant changes in the number of Campylobacter spp. and mesophilic bacteria were found. The tested preparation did not cause changes in the microbial composition of tissue swabs. Deodoric® contributes to animal welfare by reducing the ammonia concentrations in poultry houses. It is also recommended for use in poultry farms to improve animal health and performance and to generate benefits for producers.

scholarly journals Paprika and/or marigold extracts in diets for laying hens

2017 ◽  
Vol 18 (2) ◽  
pp. 293-302 ◽  
Author(s):  
Maria Cristina de OLIVEIRA ◽  
Wanessa Dutra da SILVA ◽  
Higor Castro OLIVEIRA ◽  
Eduardo de Queiroz Barros MOREIRA ◽  
Larissa de Oliveira FERREIRA ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Specific Weight ◽  
Control Treatment ◽  
Control Group ◽  
Egg Mass ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Haugh Unit

SUMMARY This study was performed to evaluate the effect of the inclusion of paprika and marigold extracts in sorghum-based rations on the productivity and egg quality of laying hens. One hundred sixty laying hens were distributed in a completely randomized design in five treatments and in a factorial arrangement (2 × 2 + 1), one control ration based on corn, two levels of paprika extract (0 and 6 g/kg diet), and two levels of marigold extract (0 and 1 g/kg diet) in sorghum-based rations. There was no effect (P > 0.05) of the treatments on the weight, specific weight, and Haugh unit of the eggs and productive performance, but the inclusion of paprika extract resulted in eggs with lower egg pH. The interaction between the control group and the factorial was significant (P < 0.05) to the laying rate, egg mass, and yolk color, whose values were lower with sorghum-based diets with no pigment compared to control treatment. The interaction between the paprika and marigold extracts was significant increasing the height (P < 0.03) and color (P < 0.0001) of the yolk when paprika extract was used, with or without marigold extract. Marigold extract inclusion reduced the percentage (P < 0.02) and thickness (P < 0.01) of the eggshell. As conclusion, the inclusion of paprika extract in sorghum-based diets for laying hens is viable for improving the egg quality.

Immune response of guinea-pigs to chemically abbreviated prepatent Metastrongylus apri infection

Parasitology ◽  
1976 ◽  
Vol 72 (1) ◽  
pp. 13-18 ◽  
Author(s):  
V. Kumar ◽  
J. Mortelmans
Keyword(s):  
Guinea Pigs ◽  
Gamma Globulin ◽  
Immune Status ◽  
Clinical Manifestations ◽  
Control Group ◽  
Infection Dose ◽  
Infective Larvae ◽  
Worm Recovery ◽  
The Status ◽  
Experimental Group

The effect of chemical abbreviation of the primary infection dose (PID) of 160 infective larvae of Metastrongylus apri on the immune status of the guinea-pig host was studied. The criteria used for assessing the status of immunity consisted of clinical manifestations following administration of a challenge infection dose (CID) of 800 infective larvae of M. apri, the rate of worm recovery 15 days post-CID and the rate of mortality following administration of CID.Among the guinea-pigs of the main experimental group, where 15-day-old PID was abbreviated by two parenteral doses of levamisole*, a strong immunity to CID given 35 days post-PID was built-up. Against this, all the guinea-pigs of a control group, which did not receive PID, died between 16 and 22 days post-CID.The increase in serum gamma-globulin level of the guinea-pigs, where the PID was abbreviated chemically, suggested that the rise of this globulin fraction in the serum could be in some way related to the resistant state of guinea-pigs.

scholarly journals Fatty Acid Composition and β-Carotene Content in Egg Yolk of Laying Hens Fed with Linseed, Paprika and Marigold

2016 ◽  
Vol 65 (1-2) ◽  
pp. 15-22 ◽  
Author(s):  
Nedeljka Spasevski ◽  
Dušica Čolović ◽  
Slađana Rakita ◽  
Predrag Ikonić ◽  
Olivera Đuragić ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Laying Hens ◽  
Egg Yolk ◽  
Control Group ◽  
Sunflower Meal ◽  
Carotene Content ◽  
Natural Pigments ◽  
Egg Yolks ◽  
Experimental Group ◽  
Β Carotene

SummaryEggs enriched with n-3 fatty acids and natural pigments are desirable in human food chain due to numerous benefits for health. In this study, we investigated the effects of inclusion of co-extruded linseed and sunflower meal into laying hens’ diet and replacement of synthesized pigment with paprika and marigold flower as sources of natural pigments. Four hundred 18–wk-old Bovan laying hens divided in two groups (control and experiment) were fed for 12 weeks. Fatty acids and β-carotene were monitored every fourth week and successively analyzed. Significantly (p<0.05) increased content of α-linolenic acid in egg yolk in the experimental group in comparison to the control group was observed with addition of linseed, paprika and marigold in laying hens’ nutrition. Nearly the same tendency was observed in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content. Supplementation of the co-extruded linseed and sunflower meal into laying hens’ diet demonstrated significantly (p<0.05) lower n-6/n-3 FA ratio in experimental group compared to control group. The obtained results showed that the synthetic pigment added to laying hens’ diet provided better pigmentation of egg yolks after one and two months of the feeding trial than paprika and marigold flower. The concentration of β-carotene in egg yolks increased in experimental group after three months of the treatment, and that was the first time that concentrations of β-carotene did not significantly (p < 0.05) differ among control and experimental group, which shows that paprika and marigold flower as sources of natural pigments can successfully replace synthetic pigment. We shall continue research in this field with other supplemented mixtures, as there are indices for other potential feed enhancements among oily seeds and herbs.

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