Performance of Caponized Local Chicken under Different Production Systems for Small Scale Production in Resource Poor Settings

Dutta, Bitupon; Deka, Raj Jyoti; Gogoi, Amulya Kumar; Saikia, Bhaskar; Mahanta, Jog Dev; Laskar, S.; Dutta, C

doi:10.20546/ijcmas.2020.910.052

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…Розроблено технологічні процеси з вирощування птиці, в основу яких покладено принцип наближення умов утримання тварин до природного середовища. Для виробництва дієтичного м'яса птиці із високими смаковими якостями, покращеним хімічним складом та низьким вмістом гормонів, відомих як стрес-чинники, застосовують низку нових методів, зокрема гонадоектомію (кастрацію) [3,6,7]. За цього способу сім'яники у півників видаляють до досягнення статевої зрілості через хірургічне втручання без застосування місцевої анестезії та антибіотиків [4].…”

Section: національний університет біоресурсів і природокористування україниunclassified

The morphological composition of the blood and the peculiarities of metabolism in gonadectomized cockerels of the Adler silvery breed

Cheverda

Zakharenko

2021

Nauk. vìsn. vet. med.

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The article reflects the results of a study of the morphological composition of blood, indicators of metabolism and the content of hormones in the blood plasma of gonadectomized cockerels of the Adler silvery breed. In the experiment, 40 males were used at the age of 6 weeks, of which two groups were formed, a control and an experimental, 20 heads each. It was found that during the preparatory (leveling) period, the clinical state, morphological composition of blood and metabolic parameters in the experimental group of males did not differ from each other and were within the limits of their physiological values. There were also no differences in blood glucose concentration, protein content, triglycerol, cholesterol, uric acid, as well as the activity of alkaline phosphatase, alanine and aspartate aminotransferase in the blood plasma of cockerels in the experimental and control groups during the preparatory period. Gonadectomy of males by surgical intervention at the age of six weeks did not significantly affect the morphology of their blood on the third day, with the exception of ESR, the value of which in birds of the experimental group was 1.9 times higher than in the control. In gonadectomized males, the number of platelets in the blood decreased by 30.7% compared to the control, which indicates a decrease in platelet activity and is probably associated with their participation in blood coagulation processes in the body after gonadectomy. Other indicators of the morphological composition of blood, namely, the number of erythrocytes, leukocytes, lymphocytes, eosinophils and neutrophils in gonadectomized males did not change compared with the control. It was found that the concentration of glucose in the blood, as well as total protein and uric acid in the blood plasma of males who underwent gonadectomy on the third day of the research period were at the level of the values of the control group birds and corresponded to the physiological values of these parameters in clinically healthy birds. On the 125th day of the main period in gonadectomized males, the level of glucose and protein, as well as indicators of lipid metabolism, namely, the concentration of triglycerol and cholesterol in the blood plasma did not change, while the content of uric acid increased by 23.7% compared with the control. It was found that the content of cortisol in the blood plasma of gonadectomized males was 3.2 times lower, and testosterone 10.2 times lower than in the control. So, gonadectomy of cockerels does not affect the morphological composition of the blood, indicators of the metabolic status of the bird, but it helps to reduce the content of cortisol and testosterone in the blood plasma. Key words: roosters, gonadectomy, blood morphology, metabolic parameters, enzyme activity, cortisol, testosterone.

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Section: національний університет біоресурсів і природокористування україниunclassified

The morphological composition of the blood and the peculiarities of metabolism in gonadectomized cockerels of the Adler silvery breed

Cheverda

Zakharenko

2021

Nauk. vìsn. vet. med.

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Effects of gonadectomy on clinical-hematological, metabolic and hormone conditions of cockerels

Zakharenko

Cheverda

Kurbatova

2022

Regul. Mech. Biosyst.

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Gonadectomy (caponization) of cockerels is an important way of increasing their productivity, improving the quality and taste properties of the meat, and obtaining dietary products. The objective of the study was the influence of gonadectomy of cockerels on their clinical condition, morphological composition of blood, hemoglobin content and anabolism in the tissues, their productivity and chemical content of the muscles. In the experiment, we used 30 Adler silver cockerels aged 4 weeks, which were divided into two groups: control (intact) and experimental (gonadectomized) according to the analogue principle, with 15 individuals in each. The experiment lasted for 185 days, including the main period of 175 days. We determined that the body temperature of cockerels after gonadectomy increased as early as days one and three. In the blood of gonadectomized cockerels, the number of leukocytes decreased by 36.3%, thrombocytes – by 24.7%, while hemoglobin concentration, numbers of heterophils, eosinophils, basophils, monocytes and lymphocytes did not change compared with the intact individuals. On days 20 and 185 of the experiment, the concentration of testosterone in the blood plasma of gonadectomized cockerels was lower respectively by 57.1% and 53.1%, whereas no differences were found prior to gonadectomy and on the third day of the experiment. We determined increase in uric acid concentration and decrease in the level of ionizing calcium in blood plasma of gonadectomized cockerels compared with intact individuals, while the content of cortisol, glucose, total protein, triglycerides, cholesterol, total calcium and inorganic phosphorus, and also activities of alkaline phosphatase, alanine aminotransferase and aspartate aminotransferase did not change. Live weight of gonadectomized cockerels in the period from 45 to 105 days of the raising did not change, and was higher by 10.4–17.0% from day 115 to 145, and further remained not different from the control. Thoracic muscles of gonadectomized cockerels contained 1.8 times more fat, while the levels of moisture, dry matter, protein and ash in thoracic and thigh muscles did not change. The conducted studies have revealed the effect of gonadectomy of roosters on clinical-hematological parameters, metabolic processes, productivity of birds and chemical composition of muscles and may be used to improve the production of chicken meat with high dietary and taste properties.

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Clinical condition and productivity of gonadoectomized roosters of Adler silver breed

Cheverda¹,

Zakharenko²,

Solomon³

2021

Sučasne ptahìvnictvo

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The effect of gonadoectomy (removal of the testicles) in Adler's silver roosters on the clinical condition, live weight, slaughter rates and chemical composition of the pectoral muscle was studied. The experiment was performed on 40 roosters of 6-weeks, which according to the principle of analogues were divided into two groups: control and experimental 20 heads each. It was found that in the preparatory period, which lasted 10 days indicators of the clinical condition – body temperature, pulse and respiration, as well as live weight of the roosters of the experimental group did not differ from the control. Gonadoectomy of roosters of the experimental group, conducted at the age of 45 days by a specially developed method, increased the body temperature of the poultry on the second day after surgical intervention by 1.03°C, and on the third – by 1.15°, while other indicators of clinical condition – pulse, number respiratory movements and live weight did not change compared to control. The duration of the postoperative period in the roosters of the experimental group was 3-4 days and ended with the healing of the wound on the skin. Subsequently, body temperature, pulse and the number of respiratory movements in gonadoectomized roosters corresponded to similar indicators of poultry in the control group. The live weight of gonadoectomized roosters in the rearing process, which was monitored decadelly from the 65th to the 95th day compared to the control did not change, on 105th and 115th day had a tendency to increase, and 125th day increased by 4.8 %. Slaughter rates of gonadoectomized roosters corresponded to similar indicators of poultry of the control group. The weight of the gutted carcass was higher by 5.2% and that of the muscular stomach by 7.8%. Differences in the chemical composition of the pectoral muscle of gonadoectomized roosters compared with control, namely: on the content of dry matter, moisture, fat, protein and ash were not found. Thus, gonadoectomy of roosters of the Adler's silver meat-egg breed does not affect their clinical condition, the chemical composition of the pectoral muscles, but increases the live weight of the bird on the 125th day of rearing

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Performance of Caponized Local Chicken under Different Production Systems for Small Scale Production in Resource Poor Settings

Cited by 3 publications

References 9 publications

The morphological composition of the blood and the peculiarities of metabolism in gonadectomized cockerels of the Adler silvery breed

The morphological composition of the blood and the peculiarities of metabolism in gonadectomized cockerels of the Adler silvery breed

Effects of gonadectomy on clinical-hematological, metabolic and hormone conditions of cockerels

Clinical condition and productivity of gonadoectomized roosters of Adler silver breed

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