The effect of digitonin on egg quality, cholesterol content in eggs, biochemical and haematological parameters in laying hens

Tůmová, E.; Haertlova, H.; Ledvinka, Z.; Fučíková, Alena

doi:10.17221/4268-cjas

Cited by 9 publications

(10 citation statements)

References 13 publications

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“…The lowest value (1.21 mmol/1) was found in helmeted guineafowl while the highest value was detected in wild turkey (5.93 mmol); this value is outside the range of mean values observed in other species and fails to fall in the range of 5.02-18.92 mmol/l reported by Meluzzi et al (1992). Tůmová et al (2004) reported the mean value of 3.47 mmol/l. Other authors point out the differences in the concentrations of CHOL and TAG in different hybrids, depending on gender (higher in males as compared to females) and age where the concentration of CHOL decreases and the concentration of TAG increases (Meluzzi et al 1992;Straková et al 1993).…”

Section: Resultscontrasting

confidence: 51%

“…In addition, the collection samples of biological material and the methods of laboratory analysis also play an important role (Meluzzi et al 1992). Partial results of biochemical screening in gallinaceous poultry (the order Galliformes), namely hens, are reported in papers by Jeřábek et al (1993), Suchý et al (2004) and Tůmová et al (2004), or in broiler chickens by Meluzzi et al (1992), Straková et al (1993), Itoh et al (1995) and others. However, similar data in feathered game is only sporadic.…”

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confidence: 99%

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Values of Selected Biochemical and Mineral Metabolism Indicators in Feathered Game

et al. 2010

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The present paper extends the current knowledge of biochemical and mineral profiles in selected species of feathered game such as helmeted guineafowl (Numida meleagris), common pheasant (Phasianus colchicus), Japanese quail (Coturnix coturnix japonica), chukar (Alectoris chucar), grey partridge (Perdix perdix) and wild turkey (Meleagris gallopavo) reared in the Czech Republic and throughout Europe. The work evaluates potential interspecies differences among the values and compares the findings with the results reported for related domesticated species of birds. Indicators investigated in the individual species of feathered game such as total protein (TP), glucose (GLU), total cholesterol (CHOL), triacylglycerides (TAG), uric acid (UA), alanine aminotransferase (ALT) and Ca, P, Mg, Na, K, Cl varied in ranges typical for layers and broiler chickens. Except for wild turkey where mineral metabolism values reached or even exceeded the upper limit of the physiological range, which may indicate a specific interspecies difference. However, with regard to the wide physiological range of biochemical indicators in the blood of birds, significant (P ≤ 0.05) and highly significant (P ≤ 0.01) differences in most mean values for the monitored indicators can not be evaluated as interspecies differences. Blood chemistry, helmeted guineafowl, common pheasant, japanese quail, chukar, grey partridge, wild turkeyThe monitoring of biochemical indicators in blood samples from poultry is now a routine part of experimental papers in the area of veterinary medicine and animal husbandry. However, there is still a lack of information on the biochemical profile in feathered game reared in European conditions. Sporadic papers report on the assay of biochemical indicators in domesticated birds, particularly in layers and broilers, to show potential metabolic changes of different origin in a variety of experiments that focus on different objectives. The values of blood indicators are affected by many factors such as genotype, age, physiological condition, gender, diet, micro-and macro-climatic conditions, the method of rearing, season, and pathological factors. In addition, the collection samples of biological material and the methods of laboratory analysis also play an important role (Meluzzi et al. 1992). Partial results of biochemical screening in gallinaceous poultry (the order Galliformes), namely hens, are reported in papers by

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confidence: 51%

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Values of Selected Biochemical and Mineral Metabolism Indicators in Feathered Game

et al. 2010

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“…The lowest concentration of cholesterol, which is an indispensable precursor for synthesis of many important steroid hormones, was 2.67 mmol/l in BPR line. Higher values of plasmatic cholesterol were observed by Tůmová et al (2004) in laying hens. The level of creatinine in blood plasma was another parameter involved in our study because in poultry it reflects the supply of N-compounds.…”

Section: Resultsmentioning

confidence: 85%

Relationship of ejaculate quality and selected biochemical parameters of blood in cockerels of three laying lines

Jarinkovičová¹,

Máchal²,

Máchal³

et al. 2012

Czech J. Anim. Sci.

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In domestic fowl (Gallus gallus f. domestica), monitoring of both quantitative and qualitative parameters of ejaculates is an indispensable precondition of successful artificial insemination; on the basis of the obtained results it is then possible to select the individuals that produce sufficient amounts AbstRAct: Ejaculates and blood plasma were sampled from cocks of three laying lines: Barred Plymouth Rock (BPR), Sussex Light (SU), and Rhode Island Red (RIR). Ejaculates and blood plasma were sampled four times during the laying period of hens. The following ejaculate parameters were determined: sperm motility, concentrations of sperm cells, ejaculate volume. Sperm morphology was examined. In the blood samples, concentrations of glucose, cholesterol, creatinine, calcium, phosphorus, and magnesium were analysed. The motility of spermatozoa of the cocks was 47.0% (BPR), 47.7% (RIR), and 48.3% (SU), respectively. The highest volume of ejaculate was found in BPR line (0.66 cm 3 ), the lowest one in SU line (0.46 cm 3 , P ≤ 0.01); the highest sperm concentration was in SU line (2.46 × 10 6 /mm 3 ), the lowest one in RIR line (1.96 × 10 6 /mm 3 , P ≤ 0.01). The number of morphologically abnormal sperm cells was similar in all lines − 47.0% BPR, 47.7% RIR, and 48.3% SU, respectively. In general, the occurrence of defective spermatozoa was high in all three lines; the most frequent were tail defects (from 20.3 to 29.7%), while sperm cells with developmental anomalies were less frequent (only 0.3 to 0.4%). Calculated phenotypic correlation between sperm motility on the one hand and the occurrence of defective sperm cells on the other was negative (r p = −0.28, P ≤ 0.01), as well as the correlation between sperm motility and sperm numbers, and between sperm motility and ejaculate volume (r p = −0.28, P ≤ 0.01 and r p = −0.31, P ≤ 0.01, respectively). Negative correlations were found between the level of magnesium in blood plasma and numbers of morphologically defective spermatozoa in the ejaculate, defective heads and defective connecting pieces (r p = −0.33, P ≤ 0.01; r p = −0.23, P ≤ 0.05; and r p = −0.26, P ≤ 0.05). Level of magnesium was positively correlated to sperm motility (r p = 0.26, P ≤ 0.05). However, positive correlations existed between concentration of glucose in blood plasma of cocks and numbers of morphologically defective spermatozoa in sampled ejaculates (r p = 0.27, P ≤ 0.01). Our finding is in accordance with the results found in mammals and other animals, and it shows an important role of magnesium as a key contributor to the quality of ejaculate in aviary species, in our case in laying lines of domestic fowl (Gallus domesticus).

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“…The dynamics of selected biochemical parameters in the blood plasma of layers was studied by a number of authors. Molar concentrations of plasma cholesterol were reported for example by Máchal (2000), who found that mean levels of cholesterol during egg laying ranged from 2.52 to 4.12 mmol/l, while Tůmová et al (2004) reported the range of 3.40-7.53 mmol/l, Suchý et al (1999) the range of 2.73-6.18 mmol/l, and Lichovníková et al (2002) the range of 3.56-3.57 mmol/l. Some authors, for example Puvadolpirod and Thaxton (2000), related the level of plasma cholesterol in layers to stress as Pavlík et al (2004) did in the case of plasma glucose.…”

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confidence: 84%

“…These results are in good agreement with haematological findings by Straková et al (2001), who showed that during egg laying the count of erythrocytes dropped from 2.51 T/l to 2.16 T/l, haematocrit levels from 0.29 l/l to 0.26 l/l and the content of haemoglobin from 92.52 g/l to 75.29 g/l. Tůmová et al (2004) reported increased levels of total erythrocyte count in the blood of control layers (3.15 T/l) in comparison with experimental layers (2.88 T/l and 2.83 T/l) which were administered digitonin. Mean leukocyte counts ranged according to the above authors as follows: 17.65 G/l, 18.41 G/l, and 16.59 G/l.…”

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confidence: 88%

Differences between metabolic profiles of egg-type and meat-type hybrid hens

Suchý¹,

Straková²,

Jarka³

et al. 2004

CZECH J ANIM SCI

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The study focuses on a comparison of haematological and biochemical parameters in the blood of two types of production hybrid hens (egg-type hens, meat-type hens) in order to gain insight into the dynamics of changes in these parameters during the laying period. With respect to animal welfare and quality production over the whole egg-laying period it is necessary to maintain the metabolic profile of layers within physiological ranges characteristic of particular hybrid combination, age and production type. Objective assessment of health is based on both haematological and biochemical tests performed with blood. The authors have attempted to address issues raised by both experts and veterinary practitioners concerning the lack of data on exact haematological and biochemical blood parameters in clinically healthy egg-type and meat-type hens. Until now no detailed studies have been published in scientific literature which would deal with dynamic changes in individual haematological and biochemical parameters of blood in layers during egg laying. Haematological and biochemical examinations in scientific papers are mostly reported only as supplementary informa- ABSTRACT:The main objective of this study was to compare the metabolic profile (i.e. selected haematological and biochemical parameters in blood plasma) of production egg-type hybrid hens (E, MORAVIA BSL) with that of meat-type hybrid hens (M, COBB 500), and to evaluate dynamic changes occurring during the laying period from the 25th to 50th week of age. The study was prompted by both poultry farmers and veterinary practitioners since parameters defining the health of layers are absent. Selected parameters of the metabolic profile of layers were monitored regularly in 5-week intervals during egg laying. Samples of blood for haematological and biochemical examination were obtained by puncture of the vena basilica and stabilized by heparin. The study has revealed that monitored parameters of the metabolic profile significantly vary with factors such as production type, nutrition, and egg-laying intensity. Enhanced metabolism in egg-type hens was reflected in erythropoiesis which increased (in comparison with meat-type hens) highly significantly (P ≤ 0.01), particularly for erythrocyte count 2.36 T/l (2.14 T/l), haematocrit level 0.32 l/l (0.30 l/l), content of haemoglobin 94.48 g/l (84.18 g/l) and leukocyte count 17.06 G/l (13.22 G/l). Similarly, enhanced metabolism in egg-type hens also led to a highly significant increase (P ≤ 0.01) in the levels of biochemical parameters in blood plasma, particularly the total level of protein was 57.62 g/l (50.98) g/l), glucose 14.03 mmol/l (13.36 mmol/l), cholesterol 5.34 mmol/l (3.73 mmol/l) and calcium 6.52 mmol/l (5.52 mmol/l). ) In the case of the plasma level of phosphorus, no significant difference was found between egg-type hens (1.58 mmol/l) and meat-type hens (1.59 mmol/l). The reported results are based on the total of 180 haematological and biochemical analyses performed during the laying period. The results are...

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The effect of digitonin on egg quality, cholesterol content in eggs, biochemical and haematological parameters in laying hens

Cited by 9 publications

References 13 publications

Values of Selected Biochemical and Mineral Metabolism Indicators in Feathered Game

Values of Selected Biochemical and Mineral Metabolism Indicators in Feathered Game

Relationship of ejaculate quality and selected biochemical parameters of blood in cockerels of three laying lines

Differences between metabolic profiles of egg-type and meat-type hybrid hens

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