Dynamics of changes in contents of organic and inorganic substances in sheep colostrum within the first 72 h after parturition

Kráčmar, Stanislav; Kuchtík, Jan; Baran, M.; Váradyová, Zora; Kráčmarová, E.; Gajdůšek, S.; Jelı́nek, P.

doi:10.1016/j.smallrumres.2004.06.012

Cited by 13 publications

(14 citation statements)

References 6 publications

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“…Contrary to our findings, they observed a transitional concentration increase ca 48 h after parturition. In another study, Kráčmar et al (2005) described the dynamism of Se concentration changes in the sheep colostrum, with a decrease starting 48 h after parturition.…”

Section: Resultsmentioning

confidence: 99%

Microelement Supplementation in Dairy Cows by Mineral Lick

et al. 2009

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The aim of this experiment was to verify the option of providing microelement supplementation to dairy cows in the dry period through supplemented mineral lick, and then to compare the content of microelements in the blood, colostrum and milk. The experiment was carried out on a farm with Czech Fleckvieh dairy cows. We formed an experimental group (E), supplied with mineral lick ad libitum enhanced with organic forms of microelements (Se, Zn, Cu, Mn) for four to five weeks before parturition and 1 week after parturition. The control group (C) did not receive any mineral lick. The use of mineral lick by cows was very uneven, its total consumption oscillated between 0 to 250 g of lick per animal per day. Lick feeding did not result in evidential increase of concentrations of monitored microelements in the cows' blood, colostrum and milk. Only a tendency to increased concentrations of Se and Cu in the blood of group E of cows was observed; the average Se concentration increased by 60 µg·l -1 (Cu by 9 µmol·l -1 ), whereas in group C, Se increased only by 30 µg·l -1 (Cu by 6 µmol·l -1). The concentration of microelements in colostrum after parturition dropped quickly. Significant drops were determined for Se, Cu and Zn on the first (for Mn on the second) day after parturition. Selenium concentration in the first colostrum was 5 times higher than in milk, Cu concentration 3 times higher, Zn concentration 4 times higher and Mn concentration 1.3 times higher.

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Section: Resultsmentioning

confidence: 99%

Microelement Supplementation in Dairy Cows by Mineral Lick

et al. 2009

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“…Thus these values could not be used for differentiating between colostrum and milk. Kracmar et al (2005) and Hadjipanayiotou (1995) reported that in the first hours and day post partum the colostrum contains high amounts of TS and other constituents. Within 24 h after parturition, the levels of the major part of the colostrum components significantly decreased.…”

Section: Resultsmentioning

confidence: 99%

Changes in Gross Chemical Compositions of Ewe and Goat Colostrum During Ten Days Postpartum

Keskin

Güler

Gül

et al. 2007

Journal of Applied Animal Research

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“…A comparison of concentrations of amino acids in sheep colostrum estimated by NIRS with reference values (i.e. estimation of amino acids a�er acid hydrolysis, elution of the sample with sodium-citrate buffers and detection with ninhydrin using the apparatus AAA 400; Kráčmar et al, 2004) revealed that when using NIRS (Table 3), contents of Phe and ∑AA were lower 0.03 and 0.36 mg/100 ml of colostrum, resp., while levels of Thr and Tyr were slightly higher (0.01 mg/100 ml). For ∑NEAA, His and Glu the corresponding levels were 0.04; 0.06 and 0.13 mg/100 ml, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Kráčmar et al (2004) followed dynamics of changes in the content of amino acids in the same samples of sheep colostrum within the first 72 h post partum.…”

Section: Analysis Of Amino Acid Composition Of Sheep Colostrum By Neamentioning

confidence: 99%

Analysis of amino acid composition of sheep colostrum by near-infrared spectroscopy

Kráčmar¹,

Jankovská²,

Šustová³

et al. 2004

Czech J. Anim. Sci.

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This paper deals with changes in the basic composition of sheep colostrum within the first 72 hours a�er parturition on the one hand and with the possibility of determining the major components of sheep colostrum by near-infrared spectroscopy on the other. Levels of essential, nonessential and total amino acids in sheep colostrum were determined by near-infrared reflectance spectroscopy (NIRS). Calibration was tested using the same set of samples. NIRS results were compared with reference data and no significant differences between them were found (P = 0.05). Calibration and validation models were constructed in the same way. Results of this study indicate that NIR spectroscopy can be used for a rapid analysis of amino acid contents in sheep colostrum.

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Dynamics of changes in contents of organic and inorganic substances in sheep colostrum within the first 72 h after parturition

Cited by 13 publications

References 6 publications

Microelement Supplementation in Dairy Cows by Mineral Lick

Microelement Supplementation in Dairy Cows by Mineral Lick

Changes in Gross Chemical Compositions of Ewe and Goat Colostrum During Ten Days Postpartum

Analysis of amino acid composition of sheep colostrum by near-infrared spectroscopy

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