Transition cow clusters with distinctive antioxidant ability and their relation to performance and metabolic status in early lactation

Zhang, M.Q.; Heirbaut, Stijn; Jing, Xiaoping; Stefańska, Barbara; Vandaele, Leen; Neve, Nympha De; Fievez, Veerle

doi:10.3168/jds.2022-22865

Cited by 4 publications

(2 citation statements)

References 59 publications

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“…Metabolic changes in the body of pregnant cows have been reported in many studies (Ott, 2019;Hasan et al, 2021;Zhang et al, 2023). It appears that during the transition period, cows experience various physiological changes and increased energy demands to produce colostrum and milk.…”

Section: Discussionmentioning

confidence: 94%

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Adaptive changes in immunological, hematological and metabolic profiles of pregnant cows

Zhelavskyi,

Kernychnyi,

Dmytriv

et al. 2024

Ukr. Jour. of Vet. and Agr. Sci.

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Pregnancy triggers a series of complex interactions within the body, involving both the immune system and metabolic processes. In the case of pregnant cows, these mechanisms are essential for supporting the developing fetus and maintaining the overall health of the mother. The aim of the work was to study the hematological, biochemical, and immunological parameters of cows at different periods of pregnancy. Research was conducted on cows (Bos Taurus) of the Ukrainian Black-and-White dairy breed. Groups were formed based on the principle of analogs. The research was carried out using the methodology of group-period experiments. The control group consisted of non-pregnant cows. The first observation period was conducted on pregnant cows with confirmed pregnancy (30 days). The second observation period was carried out at 90 days of pregnancy, the third at 180 days of gestation, and the fourth at 270 days. Laboratory studies included immunological research conducted in the specialized laboratory of immunology for reproduction animals. The first notable observation was the gradual increase in the population of CD3+ lymphocytes from the beginning of gestation, which remained stable until the 90th day of pregnancy and then gradually decreased. The population of B cell immune cells CD22+ had its peculiarities: dynamic and stable growth from the start of pregnancy until the middle of the second trimester (180 days), followed by a gradual decrease until the onset of labor. The redistribution of T and B lymphocytes occurred with dynamic fluctuations in the number of undifferentiated 0-lymphocytes. The processes of transformation and adaptation of homeostasis affected both enzyme activity and indicators of mineral metabolism. Thus, from the beginning of pregnancy (from the 30th day of gestation), the experimental cows showed a significant increase in alkaline phosphatase activity (P < 0.05), alanine aminotransferase (P < 0.05), and aspartate aminotransferase activity (P < 0.05). During the pregnancy of cows, body changes occur. From the early period of gestation throughout the entire period of embryogenesis, changes in the system of hematopoiesis, alterations in the activity of enzymes, exchange of Ca and P, accompanied by changes in immunological reactions take place. These processes are adaptive and ensure the maintenance of the homeostasis system. The perspective of further research will aim at studying changes in immunological and biochemical parameters during physiological pregnancy and when it is complicated.

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Section: Discussionmentioning

confidence: 94%

“…Dry matter intake tends to be at its lowest during this transition phase, with dairy cows showing a significant reduction, sometimes up to 30 % at parturition. Enzyme activities like (Glutathione Peroxidase) increase during early lactation compared to other periods, showcasing significant changes in antioxidant levels (Zhang et al, 2023).…”

Section: Discussionmentioning

confidence: 99%

Adaptive changes in immunological, hematological and metabolic profiles of pregnant cows

Zhelavskyi,

Kernychnyi,

Dmytriv

et al. 2024

Ukr. Jour. of Vet. and Agr. Sci.

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Nutrition, Immune Function, and Health

Felix,

Pauline,

Mariam

et al. 2024

Periparturient Diseases of Cattle

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Assessment of Hematological and Immunological Indicators of Blood in Cattle for "Iodine" Pathology After the Accident at the Chernobyl Nuclear Power Plant

Lazarev,

Klepko

2023

Biological Systems: Theory and Innovation

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Information on the content of the natural stable element iodine (127 I) in the radioactively contaminated territories of Ukrainian Polissia and the impact of its lack in these regions on the physiological indicators of the health of cattle (cattle) were analyzed. It is known that the most polluted territories of Ukraine belong to the Polissia zone, which are characterized as zones with a deficiency of biogenic trace elements in the soil, including iodine. It is also well known that it is radioactive iodine that plays a leading role in the radiation damage to biological objects in almost any nuclear accident when nuclear fission products enter the environment. Chernobyl NPP. Diagnostic signs and the clinical picture of radiation damage to animals by radioactive iodine are quite well described in the scientific literature. However, in our opinion, insufficient attention has been paid to these issues in situations where radioactive iodine affects animal populations in provinces endemic for stable iodine. It is known from the literature that the main clinical picture of stable iodine deficiency in cattle is: short stature, low weight, low productivity, characteristic changes in the hair coat - curliness, long hair, wrinkled skin, bradycardia, hypotonia of the scar, impaired reproductive functions, impaired erythro- and leukopoiesis. But when assessing the state of health of cattle in radioactively contaminated territories during the acute period of development of the Chernobyl accident, researchers noted very similar signs. In active experiments with the artificial introduction of radioactive iodine (131 I) into the body of cattle of various ages, we investigated changes in the physiological state of animals under the influence of various formed doses of radiation of the thyroid gland and confirmed our hypothesis regarding the similarity of the biological effects of radioiodine damage and the clinical picture of stable iodine deficiency . That is, screening of the main physiological parameters of animal health is the key to correct assessments of the degree of damage to the animal organism by radioactive iodine isotopes.

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Transition cow clusters with distinctive antioxidant ability and their relation to performance and metabolic status in early lactation

Cited by 4 publications

References 59 publications

Adaptive changes in immunological, hematological and metabolic profiles of pregnant cows

Adaptive changes in immunological, hematological and metabolic profiles of pregnant cows

Nutrition, Immune Function, and Health

Assessment of Hematological and Immunological Indicators of Blood in Cattle for "Iodine" Pathology After the Accident at the Chernobyl Nuclear Power Plant

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