HEMATOLOGICAL STATUS OF THE IMPORTED ANIMALS DURING THE ADAPTATION

Hematological profiles of imported Holstein bulls were studied twice after quarantine in order to control the process of adaptation of animals to new environmental conditions. It is shown that after quarantine in animals there was an increased content of leukocytes and hemoglobin in the blood relative to the physiological norm, which reflects the change in the functional state of the organism of bulls in connection with the change of the environment. The leukocyte content of 1/4 of imported bulls remained almost unchanged during the study period, and in more than 66 % of cases its subsequent decrease to the upper limit of the norm was observed. At the same time, it was noted that in some animals the decrease in the level of leukocytes occurred smoothly, while in others there were sharp falls. There were cases of a sharp increase in the number of lymphocytes (up to 93 %) a month after the quarantine of animals on the background of a decrease in neutrophils. The average content of erythrocytes in the blood was included within the boundaries of the reference values. Variation of this indicator was not high, in 83.3 % of animals it remained almost at the same level. The ratio of the volume of shaped elements and blood plasma in the studied bulls did not go beyond the physiological norm. The number of platelets in the blood of all bulls was within the reference limits. The imported bulls in the initial period of adaptation observed changes in the hematological profile, and subsequently formed a tendency to normalize the level of hematological parameters, which in the future will allow the animals to realize the genetic potential.

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Evaluation of breeding bulls based on quality of offspring considering crossing options

Proceedings of the National Academy of Sciences of Belarus Agrarian Series ◽

10.29235/1817-7204-2021-59-4-452-463 ◽

2021 ◽

Vol 59 (4) ◽

pp. 452-463

Author(s):

M. V. Abramova ◽

S. V. Zyryanova

Keyword(s):

High Reliability ◽

Breeding Value ◽

Milk Productivity ◽

Cattle Breeding ◽

Breeding Programs ◽

Holstein Breed ◽

Genetic Potential ◽

Dairy Cattle Breeding ◽

Holstein Bulls

Breeding takes the main place in the complex of measures for intensification of dairy cattle breeding. A characteristic feature of breeding work is identification of the most valuable genotypes and their further use in cattle population. The Holstein breed is considered one of the most highly productive breeds, in many countries of the world it is used for the genetic improvement of local breeds. In this regard, a comparative assessment of methods for determining the breeding value of bulls of different genotypes obtained by interbreeding is relevant. The results of assessment of genetic superiority of the used breeding bulls in terms of milk productivity of daughters for the first lactation through interannual deviations of the homogeneous peers are presented, the best producers in all the studied herds are identified, it is established which breeds the best and worst breeding bulls belong to. The research revealed that 18% of bulls had genetic superiority at controlled farms (9% - Holstein breed, 6% - Yaroslavl crossbreeding bulls, 3% - Mikhailovsky type’s bulls), a negative value - 24% including 9% - Yaroslavl crossbreeding bulls, 9% - Mikhailovsky type’s bulls and 6% - Holstein bulls. A comparative evaluation of the two methods showed a high reliable positive correlation between results of Mikhailovsky type bulls and Yaroslavl crossbreeding bulls equal to 0.82 and 0.56, respectively, which indicates a high reliability of the method of genetic superiority index, which can be used to evaluate bulls during crossbreeding. It is possible to increase the genetic potential of herds by excluding producers with a negative genetic index. The obtained results are recommended to be used when mating bulls and for development of breeding programs for individual herds or entire population

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Evaluation of the anesthetic effects of xylazine-ketamine, xylazine-tiletamine-zolazepam and tiletamine-zolazepam using clinical and laboratory parameters in rabbits

Medycyna Weterynaryjna ◽

10.21521/mw.6119 ◽

2018 ◽

Vol 74 (10) ◽

pp. 646-652 ◽

Cited By ~ 3

Author(s):

ABDULLAH KARASU ◽

NURI ALTUG ◽

LOGMAN ASLAN ◽

BAHTIYAR BAKIR ◽

NAZMI YUKSEK

Keyword(s):

Heart Rate ◽

Body Temperature ◽

Respiratory Rate ◽

Hematological Parameters ◽

The Other ◽

Equal Treatment ◽

Anesthesia Induction ◽

Treatment Groups ◽

Reference Limits ◽

Hematological And Biochemical Parameters

The aim of this study was to evaluate the anesthetic effects of xylazine-ketamine (XK), xylazine-tiletamine-zolazepam (XTZ) and tiletamine-zolazepam (TZ) using hematological and biochemical parameters in rabbits. A total of 18 rabbits were divided into three equal treatment groups (n = 6). The rabbits in the XK, XTZ, and TZ groups were administered xylazine (5 mg/kg) and ketamine (50 mg/kg), xylazine (5 mg/kg) and TZ (15 mg/kg), and TZ (15 mg/kg), respectively, via the intramuscular route. Following the injection, their reflexes were tested every 5 minutes. Heart rate, respiratory rate, and body temperature were determined before the injection (0 min) and at 5, 15, 30, 45, 60, 75, 90, and 120 min after injecting the anesthetic combinations. Furthermore, hematological and biochemical (alanine transaminase [ALT], aspartate transaminase [AST], alkaline phosphatase [ALP], bilirubin, blood urea nitrogen [BUN], and urea) analyses were also performed before, during, and after anesthesia administration. The duration of anesthesia and loss of reflexes were significantly longer in the XTZ group than in the other groups. However, in the TZ group, reflexes were remained. Respiratory rate and body temperature decreased in all the groups. Moreover, heart rate reduced only in the XK and XTZ groups, and the hematological parameters of all groups were comparable. Serum AST and ALP levels increased in the XTZ group compared to that in the XK and TZ groups, respectively. However, these increases were within the reference limits. The post-anesthesia serum BUN and urea levels significantly increased in the XTZ group (p < 0.05) compared to that in the other groups. Thus, although the XTZ combination provided satisfactory anesthetic effect in rabbits, it may be nephrotoxic. Therefore, its use for anesthesia induction in invasive renal procedures and experimental nephrotoxicity studies is not advisable..

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Nelore females along a new Brazilian agricultural frontier: hematological and clinical-biochemical approaches

Arquivo Brasileiro de Medicina Veterinária e Zootecnia ◽

10.1590/1678-4162-12319 ◽

2021 ◽

Vol 73 (4) ◽

pp. 791-798

Author(s):

L.H.O. Tolentino ◽

M.L.D.L Tolentino ◽

J.B. Dantas ◽

S.S. Fonseca ◽

A.F.M. Vaz

Keyword(s):

Blood Cells ◽

Hematological Parameters ◽

Reference Intervals ◽

Reference Ranges ◽

Mean Values ◽

The World ◽

Reference Limits ◽

Range Of Values ◽

Nitrogen Phosphorus ◽

Multiparous Female

ABSTRACT The Nelore breed is the second largest bovine breed in the world and has actively participated in the expansion of new Brazilian agricultural frontiers. In this context, the purpose of this study was to determine the hematological and biochemical reference intervals of healthy Nelore matrices raised under an extensive regime without supplementation along southwest of Piauí state. Blood samples were collected from fifty-five multiparous female of the Nelore breed. Biochemical and hematological parameters were analyzed using a parametric statistical method with 95% CI of reference limits. The average values of red blood cells, hemoglobin as well as hematimetric indices showed reference ranges similar to reference standards. The hematocrit as well as granulocytes and agranulocytes presented alterations typical of animals raised in environments with higher temperatures. Mineral, enzymatic, protein and metabolic profiles were similar to other bovine breeds but with a narrower range of values. However, lower mean values were observed for levels of ionized calcium, total protein and urea. Nelore females present slightly different biochemical and hematological profiles from other breeds, which might result from the environmental and nutritional management applied and the natural deficiency of nitrogen, phosphorus and calcium in the region's pastures.

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Impact of Environmental Enrichment Devices on NTP In Vivo Studies

Toxicologic Pathology ◽

10.1177/0192623315625330 ◽

2016 ◽

Vol 44 (2) ◽

pp. 233-245 ◽

Cited By ~ 4

Author(s):

Sheba R. Churchill ◽

Daniel L. Morgan ◽

Grace E. Kissling ◽

Gregory S. Travlos ◽

Angela P. King-Herbert

Keyword(s):

Body Weight ◽

Environmental Enrichment ◽

Hematological Parameters ◽

Female Rats ◽

In Vivo Studies ◽

End Points ◽

Gross Pathology ◽

Male And Female Rats ◽

Subsequent Decrease ◽

Nesting Material

The goal of this study was to determine whether the use of nesting material or polycarbonate shelters as enrichment devices would have an impact on end points commonly measured during the conduct of the National Toxicology Program (NTP) 13-week studies. The study design was consistent with the NTP 13-week toxicity studies. Harlan Sprague-Dawley (HSD) rats and their offspring and B6C3F1/N mice were assigned to control (unenriched) and enriched experimental groups. Body weight, food and water consumption, behavioral observations, fecal content, clinical pathology, gross pathology, organ weights, and histopathology were evaluated. Enriched male mice and male and female rats exhibited decreased feed intake without a subsequent decrease in body weight; this may have been the result of the nesting material reducing the effect of cold stress, thereby allowing for more efficient use of feed. There were statistical differences in some hematological parameters; however, these were not considered physiologically relevant since all values were within the normal range. Gross pathology and histopathological findings were background changes and were not considered enrichment-related. Nesting material and shelters were used frequently and consistently and allowed animals to display species-typical behavior. There was no significant impact on commonly measured end points in HSD rats and B6C3F1/N mice given enrichment devices.

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The genotypic composition of the herd of black-motley breed and phenotypic characteristic in connection with Holsteinization

Agrarian Bulletin of the ◽

10.32417/1997-4868-2020-193-2-37-43 ◽

2020 ◽

Vol 193 (2) ◽

pp. 37-43

Author(s):

E. Anisimova ◽

Petr Katmakov

Keyword(s):

Genetic Structure ◽

Phenotypic Characteristic ◽

Milk Productivity ◽

Black And White ◽

Holstein Breed ◽

Breeding Work ◽

Genetic Potential ◽

Holstein Bulls ◽

White Cattle ◽

First Time

Abstract. The article presents the results of using the genetic potential of the Holstein breed to improve black-and-white cattle. The purpose of the research was to analyze the influence of Holstein on the genetic structure of the herd and its milk productivity for the subsequent use of the results of the analysis in breeding and breeding work with animals. The objects of research were pure-bred animals of black-motley breed and crossbreeds of different genotypes from their crosses with bulls-producers of Holstein breed. Methods. The work used data from zootechnical and pedigree farm accounting, appraisal of livestock. Reliability of the origin of animals and the genetic structure of the herd was established by immunogenetic examination of the blood group systems (antigenic composition and alleles of the B-system). Results. It was established that under the same conditions of feeding and keeping, the milk productivity of the crossbred cows for the first lactation, depending on the blood content in the Holstein breed, was 97–550 kg more milk than pure-bred peers of black-motley breed. The most desirable for further breeding work are the genotypes of 5/8 and 3/4 blood animals. The use of Holstein bulls in this herd led to a significant change in the concentration of individual antigens and alleles of the B-system of blood groups in animals in comparison with the population of black-motley cattle. Scientific novelty. For the first time in the conditions of the Saratov region, studies were conducted to assess the population of black-motley cows and their Holstein crossbreeds by a set of economically useful traits and the efficiency of their breeding.

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Correlation dependence of clinical and biochemical indicators of protein exchange of blood in horses with CVD pathologies

Veterinariya, Zootekhniya i Biotekhnologiya ◽

10.36871/vet.zoo.bio.202101002 ◽

2021 ◽

Vol 1 (1) ◽

pp. 13-20

Author(s):

N. E. Orlova ◽

◽

M. E. Ponomareva ◽

S. A. Pozov ◽

◽

...

Keyword(s):

Physical Activity ◽

Protein Metabolism ◽

Inverse Relationship ◽

Hematological Parameters ◽

Blood Parameters ◽

Transport Proteins ◽

Hemoglobin Content ◽

Correlation Dependence ◽

Plasma Albumin ◽

Upper Limit

In the course of the study, the analysis of clinical and hematological parameters of blood serum, characterizing protein metabolism in racehorses with pathologies of the cardiovascular system, was carried out. Physical activity caused them: an increase in the number of erythrocytes by 19,2%, hematocrit – by 15,6%, hemoglobin – by 18%, urea – by 6,4%, alpha-globulins – by 33%; decrease in beta and gamma globulins. Hyperchromaemiawas revealed: an increase in the hemoglobin content in the erythrocyte was 11% above the norm before work and by 13,5% after work. A violation of the ratio of protein fractions in blood was found: at rest, the proportion of alpha globulins is 16,9% below the norm, the proportion of beta globulins in the blood exceeds the upper limit of the norm by 7,5%, and gamma globulins – by 28%; after exercise, the proportion of alpha globulins increases by 33%, and gamma globulins decreases by 37,6%. The analysis of the correlation of blood parameters at rest revealed an inverse relationship between the level of erythrocytes, hemoglobin and the amount of transport proteins in the blood plasma (albumin and alpha globulins); physical activity caused a decrease in the correlation dependence.

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Effect of Diets With Different Lysine Levels on the Hemograms of Juvenile Tambaqui Colosssoma Macropomum (CUVIER, 1818)

10.21203/rs.3.rs-381437/v1 ◽

2021 ◽

Author(s):

Ariany Rabello da Silva Liebl ◽

Marcelo dos Santos Nascimento ◽

Philp Dalbert da Silva Castro ◽

Paulo Henrique Rocha Aride ◽

Márcia Regina Fragoso Machado Bussons ◽

...

Keyword(s):

Hematological Parameters ◽

Initial Period ◽

Good Health ◽

Colossoma Macropomum ◽

Caudal Vein

Abstract Blood transports lysine and other nutrients derived from the diet and ensures good health and greater productivity for the fish. Therefore, this study aimed to verify the hematological behavior of juvenile tambaqui Colossoma macropomum nourished with levels of 9.72, 12.84, 15.96, 19.08 and 22.20 g.Kg-1 of total lysine, corresponding, respectively, to the supplementation levels with L-lysine: 0.00, 4.00, 8.00, 12.00, 16.00 and 20.00 g.Kg-1 of L-lysine. The blood of the fish was collected in the initial and final periods by puncture of the caudal vein. The variables were validated by ANOVA and Tukey's test (p< 0.05). No differences were found for hemoglobin, hematocrit, CHCM, leukocytes of the eosinophil and monocyte types, and thrombocytes (p> 0.05). The changes observed in total leukocytes were not attributed to diets (p= 0.00). Means of CMV, HCM, lymphocytes and neutrophils, varied over the initial period, but not in regard to different lysine levels (p< 0.05). Thus, it is concluded that the varying lysine levels of the diets did not compromise the hematological parameters analyzed.

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