Body Weight Of Broiler Chickens Research Articles

Effects of cassava root meal on the growth performance, apparent nutrient digestibility, organ and intestinal indices, and slaughter performance of yellow-feathered broiler chickens.

With the global population growth and shortage of food, the competition between humans and animal for food will become increasingly fierce. Therefore, the development of unconventional energy feed cassava feed is of great significance. The objective of this study was to investigate the effects of cassava root meal (CRM) on the growth performance, apparent digestibility, and organ and intestinal indices of broiler chickens. A total of 140 one-day-old chicks were randomly assigned to four dietary treatment groups [control diet (CT), 15% CRM (CRM15), 30% CRM (CRM30), and 45% CRM (CRM45)] with five replicates of seven birds per replicate. The results showed that the body weight of broiler chickens fed diets containing CRM were significantly lower than that in the CT group at 21 and 42days of age, the average daily gain and average daily feed intake in the CRM group were significantly lower than those in the CT group from 1 to 21days of age. However, from days 22 to 42, there were no significant differences between CRM15 and CT birds regarding average daily gain and average daily feed intake. but there was no difference in feed conversion rate between the CRM15 and CT groups. At 42days of age, there were no significant differences between CRM15 and CT birds in in body measurements, the slaughter performance and the percentage of semi-eviscerated yield. The addition of CRM reduced the proportion of breast and thigh muscles during the feeding period, although we detected no significant difference between CRM15 and CT regarding the apparent digestibility of nutrients. Collectively, our findings indicate that 15% cassava was the optimal proportion for supplementing diets for broiler chicken production.

Study of the effect of a combination of biocoordination compounds and a water-based probiotic on the performance of broiler chickens

The aim of the study was to investigate the effect of a combined probiotic, which included microbial mass of a mixture of live bacteria L. acidophilum, B. adolescentis and chelate complex of amino acids with chromium on the dynamics of growth performance, feed intake and digestibility, slaughter quality, morphological and biochemical blood parameters in the organism of broiler chickens of Arbor Aikress cross (CJSC «Poultry Farm Orenburgskaya»). Up to two weeks of age, the birds were in the preparatory period and received the basic diet (n=60). Starting from the age of 15 days, broilers of the experimental group additionally received with water a combined probiotic at a dose of 0,2 g/kg, and with feed a chelate complex of amino acids with chromium at a dose of 200 mg/kg. The duration of the study period was 28 days. The body weight of broiler chickens of the experimental group was statistically significantly higher by 28 and 42 days of age than in the control by 18 % (p=0,03) and 14 % (p=0,01), respectively. The weight of gutted carcass in the experimental group was higher than in the control group by 24 % (p=0,05). Addition of the studied additive to the diet of birds contributed to the reduction of feed costs per 1 kg of gain by 0,3 kg (14 %). Digestibility of crude protein in the experimental group was significantly higher by 2,7 % (p=0,03). The level of protein in meat of the experimental group was higher than in the control by 2,76 % (p=0,03). The introduction of probiotic in the diet had a stimulating effect on antioxidant enzymes. In broiler chickens of the experimental group the activity of superoxide dismutase and glutathioperoxidase in blood serum was significantly higher than in the control by 13 % (p=0,02) and 7,5 % (p=0,03), respectively. Thus, probiotics, together with the complex of amino acids with chrome, due to its multipurpose action can have a positive effect on the organism of farm poultry and increase the efficiency of poultry farming.

Applied Research Note: Maternal flaxseed diet did not affect body weight of broiler chickens diagnosed with novel avian reovirus and infectious bronchitis

Applied Research Note: Maternal flaxseed diet did not affect body weight of broiler chickens diagnosed with novel avian reovirus and infectious bronchitis

Effects of curry (Murraya koenigii) leaves powder supplementation on the bodyweight of broiler chickens

Effects of curry (Murraya koenigii) leaves powder supplementation on the bodyweight of broiler chickens

The function of carnosic acid in lipopolysaccharides-induced hepatic and intestinal inflammation in poultry

Inflammatory processes are often accompanied by oxidative stress and lipid peroxidation, which might lead to cellular and organ damage. Carnosic acid (CA), an active component found in rosemary, exhibits pharmacological properties including antioxidative, anti-inflammatory, and antiviral effects. The aim of this research was to investigate whether CA can mitigate lipopolysaccharide (LPS)-induced oxidative stress and inflammatory responses in poultry and to understand its underlying mechanisms. We administered CA to broiler chickens via oral gavage and treated them with LPS, followed by analysis of the effects of different dosages of CA on body weight, antioxidative capacity, and inflammatory factors. Carnosic acid had no significant impact on the body weight of broiler chickens. However, serum analysis indicated that the middle dose of CA effectively enhanced the antioxidative capacity and reduced levels of oxidative stress and inflammation-related factors. Moreover, in the liver, CA demonstrated the ability to regulate the expression of proteins such as heat shock protein 60 (HSP60), heat shock protein 70 (HSP70), and P38 mitogen-activated protein kinase (P38), suggesting its protective role against liver damage induced by LPS. In the intestinal tract of broiler chickens, CA regulated the expression and localization of proteins including HSP60, HSP70, NFE2 like bZIP transcription factor 2 (Nrf2), and P38, while also influencing the expression of inflammatory markers such as protein tyrosine phosphatase receptor type C (CD45), and connexin (Cx). These findings revealed the potential protective mechanisms of CA in alleviating oxidative stress and inflammatory damage induced by LPS in poultry. Carnosic acid notably enhanced the chickens' antioxidative capacity by modulating the expression of key proteins, thereby reducing oxidative stress and inflammatory response levels. This study provides a deeper comprehension of the protective mechanisms of CA and its potential impact on avian health.

Physiological Responses in Broiler Chickens Administered Lycopene During the Hot-Dry Season

Abstract This study evaluates the effects of lycopene administration on body weight, mortality, cloacal temperature, and haematological responses, in broiler chickens exposed to heat stress. 40 day-old broiler chicks were divided into control and lycopene groups, 20 chickens each. Each bird in the control group received olive oil (1 ml.kg−1), and lycopene at 10 mg.kg−1 mixed with olive oil was given to each bird in the lycopene group by oral gavage once daily for 28 days. The dry- and wet-bulb temperature of the broiler chickens’ pen was recorded three times daily from days 8 to 28. The body weights were measured weekly. The incidence of mortality was recorded. The cloacal temperatures were measured on days 14, 21 and 28. The blood samples were collected for haematological analyses, on day 28. The results indicated a high overall temperature-humidity index (31.24 ± 0.43 oC) of the thermal micro-environment of the broiler chickens. There was no significant difference (P > 0.05) in body weight. The percentage mortality in the control group was relatively higher compared to the lycopene group. Lycopene reduced the cloacal temperature responses and the daily fluctuations in broiler chickens. The decreased (P < 0.05) heterophil:lymphocyte ratio and percentage erythrocytes haemolysis were recorded in the lycopene group. In conclusion, lycopene administration reduced mortality and improved cloacal temperature and haematological responses without exerting any significant beneficial or negative effects on the body weight in broiler chickens exposed to heat stress.

Effect of Maintenance Distance from Cooling Pad Against Average Increase Body Weight of Broiler Chickens in Closed House Cages

Broiler chickens are good genetic quality as seen from their fairly fast growth. An intensive and controlled cage system can be found in the closed house cage system. Based on the research, the average weight of harvested chickens is not uneven, possibly unequal distribution of fresh air entering through the inlet. This research aims to determine the effect of maintenance distance from the cooling pad on the average body weight growth of broiler chickens kept in closed house cages with a size of 98 X 14 m. as many as 16,000 broiler chickens of the CP 207 strain are randomly allocated into 4 groups or flocks. The distance of flocks 1, 2, 3 and 4 from the cooling pad is 0 -24.5, 24.6 - 49.5 and 49.6 - 73.5, and 73.6 - 98m respectively. The results showed a marked difference (P<0.05) in final body weight. The highest body weight was obtained at the closest distance to the cooling pad and the lowest weight was obtained in the chicken that was in the flock farthest from the cooolig pad. It was concluded that the chicken's body weight is lower the farther the flock is from the cooling pad.

Optimization of the use of local feed ingredients from agricultural waste against the weight of broiler chicken carcasses

Feed is made from a mixture of ingredients that contain nutrients needed by livestock, these feed ingredients are the result of agricultural production and agricultural production waste. This study aims to determine the body weight of broiler chickens with feed derived from agricultural waste in Merauke Regency. This study used a randomized group design with 3 treatments and 3 repeats (A1: mash feed, A2: pellet feed without adhesive, A3: Pellet feed using adhesive). The results of research using feed ingredients derived from agricultural waste in Merauke Regency showed that the highest broiler carcass weight was obtained in the pellet feed treatment using adhesive with a value of 992 gr, then at the A2 treatment (Pellets without adhesive) of 962.67 gr, and finally the carcass weight was obtained at the A1 (Mash) treatment, amounting to 932 gr, the maintenance time for 35 days. This shows that Merauke Regency’s agricultural waste can be used as feed ingredients.

Performance and antioxidant traits of broiler chickens fed with diets containing rapeseed or flaxseed oil and optimized quercetin

This study evaluated the effect of quercetin (Q) added to feed mixtures, at concentrations directly optimized for the peroxidability of dietary rapeseed (RO) and flaxseed oil (FLO), on performance and selected biomarkers of oxidative stress of broiler chickens. Ninety-six one-day-old Ross 308 broiler chicken males were randomly assigned to four groups (six replicates per treatment, four birds per cage, n = 24 per group): Group RO received diets containing rapeseed oil (RO) and group FLO received diets containing flaxseed oil (FLO); Group RO_Q and group FLO_Q received these same diets containing RO or FLO oils, supplemented with optimized quercetin (Q). Blood, pectoral muscles, and liver samples of chickens were collected after 35 days to determine: (1) the global indicators of antioxidant capacity: ferric reducing antioxidant power (FRAP), antiradical activity (DPPH·/ABTS·+), total antioxidant status (TAS), and glutathione peroxidase (GSH-Px); (2) the activity of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD); and (3) the concentration of malondialdehyde (MDA). Data showed that the FLO diet did not affect the final performance parameters in relation to RO, but the optimized Q tended to improve the total body weight gain and the final body weight of broiler chickens (P = 0.10). The antioxidant traces analyzed in the blood (GSH-Px), plasma (FRAP, ABTS·+, DPPH·, TAS), serum (DPPH·), and pectoral muscles (SOD, CAT) of chickens were not altered by either Oil or Q factor. FLO supplementation increased MDA content in the liver of chickens (P < 0.05) and increased liver CAT activity, which was not improved by optimized Q. Meanwhile, the Oil × Q interaction suggests that optimized Q could reduce the liver burden and negative effects of oxidized lipid by-products associated with FLO diets. Our results indicate that optimizing the addition of natural polyphenols to feed may be a valuable alternative to the application of polyphenolic antioxidants in animal nutrition, allowing for an economical use of the antioxidant additives when customized to the peroxidability of fat sources, which is line to the conception of sustainable development covering ‘The European Green Deal’ and ‘Farm to Fork Strategy’.

Performance of Broiler Chickens Reared in Postal, Stage, and Closed House Cage

Broiler chickens have high productivity in producing meat. This study aimed to determine the increase of chickens’ body weight and to determine the performance index and the mortality rate between postal, stage, and closed house cages. This study used 72 broiler chickens, the experiment was carried out on the chickens aged 10 days and 25 days old. This research was conducted at the University Teaching Farm, Universitas Syiah Kuala, which is located in Ie Seum village, Aceh Besar district. The results showed that at the age of 10 days, the average body weight was 340 g in postal cage, 365 g in stage cage, and 415 g in closed house cage. The average body weight of 25 days old chicken was 1554 g in postal cage, 1605 g in stage cage, and 1718 g in closed house. Based on analysis of variance (ANOVA) body weight of broiler chickens aged 10 days showed significant difference in every cage (P0,05) and broiler chickens at the age of 25 days showed a significant difference (P0,05) in closed house. In this study, closed house cage obtained the highest body weight. Mortality rate of broiler chickens in closed house was 1.84%, postal cages was 3.60% and stage cage was 3.47%. The Performance Index (PI) of broiler chickens was 449 in closed house, 387 in postal cage and 376 in the stage cage. The highest PI was found in closed house cage and categorized as outstanding. It can be concluded that closed house cage had the highest body weight, the best performance index and the lowest mortality rate.

Inclusion of vermiculture biomass grown on a substrate of accelerated fermentation into combined feeds for broiler chickens

As the population increases, the problem of meat production will grow. An alternative method of solving this problem is growing broiler chickens; however, with this technology, the question of protein content and available amino acids in poultry feed remains open. Vermiculture biomass can be an inexhaustible source of protein for broiler chickens feeding. Under the vivarium of the Bila Tserkva National Agrarian University, worms were grown on a substrate containing poultry droppings with litter fermented by an accelerated method with the participation of a destructor. Therefore, the work aims to establish the effect of such vermiculture biomass on productivity and protein metabolism in the body of broiler chickens. For this purpose, the broiler chickens of the research groups were fed with compound feed with a content of 1.5, 3.0, and 4.5 % of vermiculture biomass. Poultry compound feed from the control group did not contain worm biomass. At the end of the experiment, the bird's body weight was recorded, the absolute and average daily gains were determined, and the indicators of protein accounting in the liver of broiler chickens were determined. It has been established that the body weight of broiler chickens varies depending on the content of vermiculture biomass in compound feed. Using a low dose of worms in the feed did not make it possible to obtain a statistically significant increase in the body weight of broiler chickens. By adding 3.0 and 4.5 % vermiculture biomass to the compound feed, the body weight of broilers increases by 3.5 and 3.7 % compared to the index of birds that were not fed worms. It was found that the absolute and average daily growth of broiler chickens that consumed compound feed containing 3.0 and 4.5 % vermiculture biomass increased by a statistically significant amount. It has been proven that using vermiculture biomass affects the protein metabolism indicators in broiler chickens' livers. In the liver of broiler chickens, which were fed with compound feed with a content of 3.0 and 4.5 % of vermiculture biomass, a tendency to an increase in the total protein content and a statistically significant increase in the activity of aspartate aminotransferase and alanine aminotransferase was established. In the liver of broilers, which were fed with compound feed with a content of 3.0 and 4.5 % of worm biomass, a tendency to increase the content of total and protein total groups was revealed.

Protein and Energy Supplements on Broiler Chicken Growth With or Without Feed Additives

Poultry development has a significant function in improving egg and chicken meat output. Poultry rearing provides income and employment to large number of people. The objective of this investigation is to determine the performance of broiler chicken when fed with diets containing different combinations of energy and protein. Total of 200 (day-old chicken) broiler chickens of a commercial strain randomly chosen for three distinct studies and fed with experimental meals. The birds rearing period was 6 weeks, the live body weight performance and health condition were measured by weekly. For each experiment Eighty (80) 1-day-old male broiler chickens of a commercial strain were selected in four groups with control including supplements diet treatments. Each treatment group of 20 birds was allocated. In the first and second weeks of feeding the body weight of broiler chicken was significantly increased by corn (starch rich supplements), however the body weight in week 4 and 5 was significantly increased by protein supplements particularly alfalfa. Also feed additives had significantly effect on growth performance where mortality rate was zero.

Performance and meat quality of broiler chickens fed with the addition of dried fruit pomace

The aim of the study was to evaluate the addition to feed of 3% of dried pomace from apples (AP), cherries (CH), and strawberries (ST) on the production results and meat quality of broiler chickens. Birds fed only the standard mixture for broiler chickens were the control group (CO). On d 42, a lower body weight of broiler chickens from group ST was noted compared to birds from group CO at P=0.032. When feed conversion per 1 kg of weight gain and loss of broiler chickens was assessed, no differences between groups were shown (P ˃ 0.05). The leg muscles of AP and CH broiler chickens had less drip loss compared to the control group at P=0.036. For other quality parameters of breast and leg muscles, no differences between groups were noted (P ˃ 0.05). It was found that the addition of dried apple and cherry pomace to the feed in the amount of 3% did not adversely affect the production results and the quality of broiler chicken meat. On the other hand, the addition to feed of dried pomace from strawberries reduced the final body weight of experimental birds. The most interesting additive turned out to be dried cherry pomace, because it improved slaughter efficiency, contributed to reducing drip loss of leg muscles, and influenced the lower level of crude fat in the breast muscles. However, further research should be carried out on the optimal concentration of CH in the diet of fattening chickens in order to achieve the most beneficial results.

Pengaruh Teknik Pembesaran pada Kandang Close house Berbasis IoT Terhadap Bobot dan Karkas Ayam Broiler

The success of broiler production is expressed in the performance of broiler chickens. The appearance of broiler chickens is influenced by management. Fight management factors have an important role as a determinant of the success of broiler chicken farming. The purpose of this study was to analyze the effect of the enlargement technique using IoT-based Close house cages on bobo and broiler chicken carcasses. This research was conducted in Jumo Village, Kedungjati District, Grobogan Regency. The materials used in this study were: DOC broiler 2500, water, disinfectant, commercial ration feed, vaccine, vitachick, plastic curtain. The tools used are: IoT-based Close house cages, drinking bowls, feed bins, buckets, thermometers, digital scales. The research was carried out in a quantitative descriptive manner, namely the effect of using IoT in cages seen from the weight and carcass of the broiler chickens produced. The maintenance process in the research was carried out for 4 weeks. The results of the qualitative descriptive test obtained an average body weight of broiler chickens at 4 weeks, namely 1732.8 grams, including normal body weight. While the average serving of broiler chicken carcass is 70.3%, which is included in the normal carcass percentage.

Fine characterization and microbiota assessment as keys to understanding the positive effect of standardized natural citrus extract on broiler chickens.

The objective of this study was to investigate the effect and composition of a standardized natural citrus extract (SNCE) on both broiler chickens' growth performances and intestinal microbiota. A total of 930 one-day-old males were randomly assigned to three dietary treatments: a control treatment (CTL) in which broiler chickens were fed with a standard diet and two citrus treatments in which broiler chickens were fed with the same standard diet supplemented with 250 ppm and 2,500 ppm of SNCE, respectively. Each dietary treatment was composed of 10 experimental units (pen) of 31 broiler chickens each. Growth performances such as feed consumption, body weight, and feed conversion ratio (FCR) were recorded weekly until day 42. Litter quality was also weekly recorded while mortality was daily recorded. One broiler chicken was randomly selected from each pen (10 chickens/group) and ceca samples were collected for microbiota analysis at day 7 and 42. Chromatographic methods were used to determine molecules that enter into the composition of the SNCE. Results from the characterization of SNCE allowed to identify pectic oligosaccharides (POS) as a major component of the SNCE. In addition, 35 secondary metabolites, including eriocitrin, hesperidin, and naringin, were identified. The experiment performed on broiler chickens showed that the final body weight of broiler chickens fed diets supplemented with SNCE was higher than those fed the CTL diets (P < 0.01). Broiler cecal microbiota was impacted by age (P < 0.01) but not by the dietary supplementation of SNCE. Results indicate that SNCE allowed enhancing chickens' performances without any modulation of the cecal microbiota of broiler chickens. The characterization of SNCE allowed to identify compounds such as eriocitrin, naringin, hesperidin, and POS. Thus, opening new horizons for a better understanding of the observed effect on broiler chickens' growth performances.

Effect of Lactobacillus casei and Garlic Powder Administration on Broiler Performance, Immune Response and Blood Profile

This study aimed to examine effect of giving a mixture of Lactobacillus casei and garlic powder (LGP) on broiler performance, immune response and blood profile. One hundred and forty-day old broilers with an average body weight of 43.70 ± 0.88 g were placed randomly in 20 experimental units. Completely randomized design was used in this study, with 4 treatments and 5 replications. The treatment was conducted when the chickens were 22-35 days old (finisher phase). The chickens were given a mixture of Lactobacillus casei and garlic powder (LGP) at concentration levels of: 0, 1, 2, and 3%. Parameters measured were blood profile, weight of lymphoid organs (bursa of Fabricius, spleen, and thymus), and carcass production. Data were analyzed for variance and if there was a significant effect, then Duncan’s multiple range test was followed at the 5% level. Results showed that the administration of LGP improved the immune response, carcass weight and final body weight of broiler chickens. The administration of 3% LGP improved immune response and achieved the best broiler performance.

Changes of Body Temperature and Body Weight of Broiler Chickens Transported from Farmers to Slaughterhouses at Different Times

The aim of the study was to determine the effect of the time of chicken transport from farmers to slaughterhouses on changes in body temperature and body weight of broiler chickens. The study used a completely randomized design (CRD) with a 3 x 2 factorial pattern (3 times of transportation and 2 times of measurement). The first factor is the time of transportation, consisting of morning, afternoon, and evening. The second factor is the time of measurement, namely before and after transportation. The study used 300 female broiler chickens aged 32-37 days. Each transport time was repeated 10 times (every day for 10 days), meaning in each replication 10 broilers were used. Variables observed were ambient temperature, body temperature and body weight before and after transportation. Measurement time and transportation time were found to affect body temperature (P&lt;0.05), but did not affect body weight (P&gt;0.05). There was no correlation between measurement time and transportation time (P&gt;0.05). It is recommended to transport chickens from the farmer to the slaughterhouse in the morning.

Applicability of antieimeriosis drugs and phytobiotic for chickens with artificial inoculation eimeriosis and effect of these preparations on the quality of post-vaccination immunity

The artificial inoculation of broiler chickens the Hisex Brown cross with a three types of eimeria, the smallest body weight loss of chickens was in the group that received the ionophoric antibiotic lasalocid with feed, anti-coccidiosis drug decoquinat and the complex phytobiotic "AdiKox AR". The use of the ionophoric antibiotic monensin and the synthetic coccidiostatic drug robenidin showed the least sensitivity of eimeria to them, which adversely affected the body weight of broiler chickens. In the blood serum of chickens taken on the 20th day after their first vaccination at one day of age with the Nobilis ND C2 vaccine by the spray method against the associated with artificial infection with a mixture of eimeria at 10 days of age and preliminary prophylactic feeding of them with drugs from different pharmacological groups, specific immunity to Newcastle the disease was unevenly distributed among the groups. The weakest group immunity was observed in the group of infected control chickens that did not receive drugs. In all groups that received supplements of chemotherapeutic agents with food, with the group immunity indicator acceptable in the vaccine instructions, there were zero individual titers. The complex phytobiotic "AdiCox AR" stimulated the production of high group post-vaccination immunity in chickens against Newcastle disease (74%) without zero individual titers. For the eimeriosis prevention and high-quality vaccination of broiler chickens against Newcastle disease at the poultry farm of the Belgorod Region, we recommend feeding the complex phytobiotic "AdiKox AR" at a dose of 300 g/t of feed for 10 days or more. The use of lasalocide and decoquinate for the coccidiosis prevention in a poultry farm is permissible with the condition of rotation and monitoring of the sensitivity of eimeria to drugs. The use of monensin and robenidin, according to the results of the experiment, is considered inappropriate.

Effectiveness of using the Feed-Food Magic Antistress Mix additive in broiler chicken diets for sustainable agricultural development

The article presents the results of using the anti-stress additive when introducing it into the mixed fodder for broiler chickens. Studies were carried out at the research base of Volgograd State Agrarian University. The birds of the control group were given a basic diet. The birds of the experimental group I received an anti-stress additive “Feed Food Magic Antistress Mix” 0.05% per ton of mixed fodder in addition to the basic diet, and experimental group II - 0.02% of anti-stress additive per ton of mixed fodder. Good results were obtained in terms of poultry survival, and good dynamics of growth and development of chickens were observed in all groups and sections. At all ages, the body weight of broiler chickens was within the standard values of the broiler breed. When comparing the indicators of live weight of a bird at the age of 35 days, it was found that the experimental group I prevailed over the control group by 2.96%, and over the experimental group II by 0.76%.

The effect of natural feed additive on productive performance of broiler chickens

The effect of natural feed additive on productive performance of broiler chickens