Wyniki wyszukiwania - AGRO

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Preparation of mare's colostrum and milk sample for 2-DE separation without acetone precipitation

100%

Cichy A., Dratwa-Chalupnik A., Medenska W., Ozgo M., Pikula R.

Acta Scientiarum Polonorum. Zootechnica

|

2020

|

tom 19

|

nr 3

2

The influence of selected factors on the yield and quality of colostrum produced by Polish Holstein-Friesian cows

100%

Gulinski P., Gago V.

Acta Scientiarum Polonorum. Zootechnica

|

2019

|

tom 18

|

nr 1

3

Effect of the backfat thickness at point P2 during insemination on the selected parameters of colostrum and milk of the sows

100%

Rekiel A., Wiecek J., Kuczynska B., Bartosik J., Warda A., Furman K.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

|

2015

|

tom 54[2]

Effect of the backfat thickness at point P2 during insemination on the selected parameters of colostrum and milk of the sows. The studies included 32 females F1 (PL x PLW), inseminated with the semen from Duroc boars. The females were assigned to two groups: L – “lean” sows: P2 ≤18 mm at mating (n=16 heads) and F – “fat” sows: P2 >18 mm (n=16 heads). The observations were carried on from the day of effective mating /insemination throughout the period of gestation and nutrition until weaning (35 day of lactation). Fatness of the sows (measurements of backfat thickness at points P2 and P4) and their muscling (height of M. longissimus dorsi at point P4M) at mating and in high pregnancy (104±1-2 day of gestation) were controlled. The samples of colostrum and milk were collected from all sows (64 samples in total). Basic chemical compositions, somatic cell count – SCC and active acidity – pH, were determined. Thickness of backfat at point P2 did not have any influence on chemical composition of colostrum and milk, SCC and pH; in spite of it. The control of the sows’ condition is justified as there was indicated a significant difference (P≤0.05) in the content of lactose (21. day) in favour of group F vs. L (0.56 pp). The mentioned result indicates the need of continuing the studies because lactose is a valuable, easily assimilated component of mother feed for the newborns.

4

Flow cytometric analysis of leukocytes in porcine mammary secretions

84%

Pomorska-Mol M., Markowska-Daniel I., Bednarek D.

Bulletin of the Veterinary Institute in Puławy

|

2010

|

tom 54

|

nr 2

188-192

Nine sows were monitored for leukocyte subsets in mammary secretions during lactation. Using flow cytometry, percentages of monocytes/macrophages (CD45⁺CD14⁺), T cells (CD3⁺), and their subpopulations (CD4⁺, CD8⁺ and double positive (DP) CD4⁺CD8⁺), and B cells (CD21⁺) in colostrum and milk were determined. The mean percentage of CD3⁺cells was relatively stable throughout lactation. About 40% of colostral lymphocytes were identified as CD3⁺, while in milk they comprised from 24% to 39%. The percentage of both CD8⁺ and CD4⁺ cells were relatively stable during lactation, beside significant decrease at the last day of lactation. Double positive cells comprised a small percentage of cells and did not exceed 7.5%. The frequency of DP lymphocytes increased significantly 6 h after parturition, and then remained relatively stable until 20th d of lactation, followed by a significant decrease at day 28 postpartum. The CD8⁺ cells prevailed over CD4⁺ cells throughout whole lactation. The CD4/CD8 ratio was similar during lactation period and ranged from 0.50 to 0.53 at the beginning and the end of lactation, respectively. Lymphocytes B represented about 20% of all lymphocytes of mammary secretions. CD45⁺CD14⁺ cells ranged between 5.01 and 10.14% of all leukocytes.

5

Chemical composition of the colostrum and milk of sows fed diets containing naked oats

84%

Szostak B., Stasiak A.

Polish Journal of Natural Sciences

|

2017

|

tom 32

|

nr 4

The aim of the study was to determine the chemical composition of the colostrum and milk of sows fed diets containing naked oats. The study was carried out on 45 Polish Landrace sows assigned to three groups, 2 experimental and one control, with 15 individuals in each group. In the late gestation period the sows were also fed a diet including naked oats. The ration fed to the experimental groups contained 20% (D₁) and 40% (D₂) naked oats of the Akt variety. The chemical composition of the colostrum and milk of the sows was tested during the first, second and third lactation. Colostrum and milk for chemical analysis were collected on days 1, 7 and 21 of lactation (basic composition) following prior administration of 2 ml of oxytocin. The level of lactoglobulins in the colostrum and milk was determined on days 1 and 7 of lactation, and the fatty acid profile on day 7. On both days 7 and 21 of lactation the milk of the sows in the experimental groups had a higher percentage of fat than in the control. The milk of the experimental sows also contained higher percentages of linoleic and linolenic acids. Statistically significant differences (P < 0.01) were shown in the percentages of these acids in the milk of sows during each lactation between the D₂ groups and the control groups.

6

The impact of cow nutrition in the dry period on colostrum quality and immune status of calves

84%

Nowak W., Mikula R., Zachwieja A., Paczynska K., Pecka E., Drzazga K., Slosarz P.

Polish Journal of Veterinary Sciences

|

2012

|

tom 15

|

nr 1

The objective of the study was to evaluate the effect of energy contents in a dry period diets in “7+1” feeding strategy of dry cow including 7 weeks of the dry period (far-off) and 1 week of a close-up period, on colostrum quality and the immune status of calves. Forty Holstein multiparous cows were dried at 56d before the expected date of calving and were assigned to the higher energy diet group (HE; 0.69 UFL/kg DM, NDF 52% DM), or the lower energy diet group (LE; 0.61 UFL/1kg DM, NDF 56% DM). From -7d to the expected calving date up to 21 d of lactation, all cows were fed the same fresh, lactation diet. Samples of colostrum were collected within 2h after parturition and its density, dry matter content and concentrations of immunoglobulins, fat, protein, lactose, urea and somatic cell counts were measured. Calves were weighed 2 h after calving and on the 21d of life. On 3d and 21d of calves’ life blood samples were collected and the concentration of IgG, IgA, IgM, insulin-like growth factor 1 (IGF-1) as well as total protein and albumin concentrations were determined. Treatments had no significant effect on composition of colostrum and serum immunoglobulins and IGF-1 concentration. In both groups the weight of calves at birth was similar, still daily body weight gain during 21 day of rearing period in HE group was higher than in the LE group (P=0.05).

7

Mammalian post-natal test of vitality presented on a Bos taurus calves model

84%

Mayntz M., Sender G.

Animal Science Papers and Reports

|

2006

|

tom 24

|

nr 3

8

The relationship between concentrations of vitamin D-binding protein (DBD) in serum and colostrum of mares and in serum of their foals in the neonatal period

84%

Madej J. P., Nowacki W., Boratynski J., Borkowski J., Wlodarczyk-Szydlowska A., Musial E.

Polish Journal of Veterinary Sciences

|

2009

|

tom 12

|

nr 4

Vitamin D-binding protein (DBP) participates in the actin scavenger system, it is a carrier of vitamin D and its derivatives, it manifests the capacity to bind mainly monounsaturated and saturated fatty acids, it binds to the surface of several cells and enhances chemotactic activity of C5a of the complement. The present study was aimed at answering the question whether serum DBP level in mares is related to levels of this protein in colostrum and in serum of its progeny. For this purpose, sera from 77 mares, colostra from 72 mares and sera from 69 Thoroughbred foals were collected. Mother’s age, number of deliveries experienced in the past, month of delivery, feeding of foals with colostra were recorded. Blood of the foals was sampled from the umbilical vein during delivery (0h) and 36-48 h after delivery from the external jugular vein, colostra of the mares were obtained after delivery and blood of the mares was sampled 36-48 h after delivery. Concentration of DBP was estimated by a self-designed ELISA. In the present study, DBP concentrations in newborn’s serum were found independent of their concentrations in mother’s serum, her age and number of parities experienced in the past. Colostrum DBP level was found to be lower than that in the mare’s serum and was not correlated to the concentration of this protein in mare’s serum. There was no effect of colostrum feeding on DBP level in the foal serum. These results indicate that serum DBP concentration in newborn foals depends on factors which act directly on the foal. Because of the lack of correlation between plasma and colostrum concentrations of DBP, it can be assumed that DBP is synthesised in the mammary gland and/or specific transport mechanisms exist in the mammary gland.

9

Insulin and glucose concentration changes in newborn piglets after suckling the colostrum from insulin administered sows

84%

Nowak J.

Acta Physiologica Polonica

|

1990

|

tom 41

|

nr 7

Nowak J.: Insulin and glucose concentration changes in newborn piglets after sucking the colostrum from insulin administered sows. Acta Physiol. Pol. Immuno reactive insulin (IRI) concentration in sows colostrum has been previously proven to be much higher than that in blood. The experiment was carried out to show the influence of endogenous and added insulin in sows colostrum on insulinaemia and glycaemia of newborn piglets. In colostrum collected from 3 control and 5 experimental sows before loading, basal insulin concentration were 1.595 and 1.365 nM⁻¹ , respectively, and calculated for all 8 sows together were 1.451 nM⁻¹ (SEM ± 0.289). Basal plasma insulin concentrations calculated for 68 healthy piglets before sucking were little differentiated (mean 0.318 ± 0.044 nM I⁻¹ ), whereas glucose initial concentrations for those piglets (mean 3.581 ± 0.275 nM I⁻¹ ) were highly differentiated. Intramuscular loading of 5 experimental sows with insulin (80 I.U. per animal) caused an increase in the concentration of insulin in colostrum from 1.365 to 3.449 nM I⁻¹ (0.01, P < 0.02). The mean insulin level (0.313 + 0.04 nM I⁻¹ ) in experimental piglets blood plasma (n = 42) increased significantly to 1.234 + 0.07 (P < 0.001) after suckling by sows loaded with exogenous insulin. Glycaemic response of those two piglets litters was poor but showed a statistically significant increase (P < 0.001). The glucose concentrations in blood plasma samples of the other three litters did not changes after sucking. The experiment excluded the hypothesis that high level of insulin in colostrum could be the cause of hypoglycaemia in healthy piglets after sucking.

10

The effects of genotype and selected environmental factors on colostrum production and intake in cattle

84%

Antkowiak I., Pytlewski J., Jakubowski M., Skrzypek R.

Polish Journal of Veterinary Sciences

|

2010

|

tom 13

|

nr 1

137-141

The aim of this study was to determine effects of genotype and selected environmental factors on colostrum production, intake, and efficiency in the cattle. The investigations were conducted on 67 dam-calf pairs. All cows were of Polish Holstein-Friesian breed, the Black-and-White variety (PHF-HO), whereas calves were sired by bulls of the following breeds: PHF-HO, Polish Holstein-Friesian of the Red-and-White variety (PHF-RW), Jersey (JE), Montbéliarde (MB) and Limousine (LI). The colostrum was collected from cows and offered to calves "from bucket" thrice a day. The amount of produced colostrum considerably exceeded the ability of its consumption by calves. Low share of HF genes in the cow, older cow's age and calving in the period from January to April appeared to be favorable factors for colostrum production. Calves born to cows with low HF gene share drank more colostrum than calves originating from cows with higher gene share of this breed. Crosses with JE drank the highest amount of the colostrum in relation to body weight, while MB-sired calves drank the highest amount in absolute terms. Colostrum intake was positively correlated with the dam's age. Furthermore, it was shown that in case of the first colostrum intake the most favorable period was from May to September, while in cases of total intake in the first day of life and mean intake in the first 5 days of life it was the period from January to April. Crosses with JE were characterized by extremely high use of colostrum per unit of body weight gain.

11

Transfer of maternal passive immunity to kids in goat herd

84%

Pisarska A., Stefaniak T., Poplawski M., Przewozny M., Ratajski R., Polak A., Nowacki W.

Polish Journal of Veterinary Sciences

|

2002

|

tom 05

|

nr 4

The efficiency of tranfer of maternal immunity and its infuence on the kids' health was observed in a herd in which kids (n=20) had whole contact with the dam (n=13). The factors associated with dam, kid and human, which influence the efficiency of passive transfer were observed. It was estimated that the single-born kids reached higher serum y-globulin level (mean 23.14 g/dm3) than twin kids (mean 18.2 g/ dm3) (p < 0.05). The y-globulin level was the highest in single-born kids at 48 h, and in twin kids in 24 h of life. The IgG class antibodies to herd-homologous strains of Pasteurella multocida and Escherichia coli were estimated using ELISA in sera, colostrum and milk whey samples of dams and sera of kids. It was found that maternal antibodies specific to these two facultative pathogens decreased in kids sera rapidly and the self humoral immune response occurred within the period of observation. Two kids delivered by goats with lowest hierarchic position in the herd showed failure of passive transfer, and died at the 10th and 12th weeks of life due to chronic infections induced by both above mentioned bacterial strains.

12

Chemical composition of colostrum and milk from Polish Landrace and Polish Large White sows

84%

Migdal W., Koczanowski J., Klocek C., Tuz R., Pasciak P., Wojtysiak D., Orlicki S.

Annals of Animal Science. Supplement

|

2005

|

nr 1

13

The energetic, immunology and amino acids quality of sow's colostrum - a review

84%

Rolinec M., Galik B., Biro D., Simko M., Juracek M., Hanusovsky O., Kaluzova M., Mixtajova E.

Acta Scientiarum Polonorum. Zootechnica

|

2021

|

tom 20

|

nr 3

14

Pro-cognitive properties of the immunomodulatory polypeptide complex, yolkin, from chicken egg yolk and colostrum-derived substances: analyses based on animal model of age-related cognitive deficits

84%

Lemieszewska M., Jakubik-Witkowska M., Stanczykiewicz B., Zambrowicz A., Zablocka A., Polanowski A., Trziszka T., Rymaszewska J.

Archivum Immunologiae et Therapiae Experimentalis

|

2016

|

tom 64

|

nr 5

15

Analysis of the relationship between fatness of late pregnant and lactating sows and selected lipid parameters of blood, colostrum and milk

84%

Rekiel A., Wiecek J., Beyga K.

Annals of Animal Science

|

2011

|

tom 11

|

nr 4

16

Identification of mare colostrum proteins

84%

Medenska W., Dratwa-Chalupnik A., Ozgo M., Cichy A., Pikula R., Bobik J.

Acta Scientiarum Polonorum. Zootechnica

|

2020

|

tom 19

|

nr 4

17

Opredelenie parametrov impul'snogo transformatora dlja obluchenija molochnojj zhelezy zhivotnykh krupnogo rogatogo skota

84%

Torchuk M., Mikhajjlova L., Dubik V., Slobodjan S.

Motrol. Motoryzacja i Energetyka Rolnictwa

|

2015

|

tom 17

|

nr 5

18

Relationships between chemical composition of colostrum and milk and rearing performance of piglets during a 21-day lactation

84%

Szyndler-Nedza M., Rozycki M., Eckert R., Mucha A., Koska M., Szulc T.

Annals of Animal Science

|

2013

|

tom 13

|

nr 4

19

Dynamic changes of immunoglobulin concentrations in pig colostrum and serum around parturition

84%

Markowska-Daniel I., Pomorska-Mol M., Pejsak Z.

Polish Journal of Veterinary Sciences

|

2010

|

tom 13

|

nr 1

21-27

The aim of the study was the determination of IgA, IgM and IgG concentrations in porcine serum and colostrum, in order to evaluate their variations in the perinatal period, as well as to clarify whether there is a correlation between colostrum intake, initial level of immunoglobulins (Ig) in piglet serum and development of their own immunity. The mean IgA, IgM and IgG concentrations in sow serum 10 days before parturition were 1.58, 6.12 and 39.56 mg/ml, respectively. Seven days later only the IgG level was insignificantly lower (34.94 mg/ml, p=0.55), while concentrations of IgA and IgM increased to 2.25 and 7.25 mg/ml, respectively (p=0.23 and 0.62, respectively). The mean initial IgG concentration in colostrum at farrowing was 118.5 mg/ml and differed between sows. The average value of IgA in colostrum at birth was 23.8 mg/ml and decreased to 7.85 mg/ml at 6 hours (h) and to 4.59 mg/ml at 24 h after the onset of farrowing. IgM concentration at birth was 12.1 mg/ml and decreased to 4.23 mg/ml at 24 h postpartum. Positive relationships were found between concentrations of IgM and IgA in serum of piglets at 14 and 56 days of life (r = 0.41 and 0.80, respectively, p≤0.05) as well as for IgG concentration in the piglets serum at 7 days and 56 days of age (r = 0.48, p≤0.05). The above observations suggest that there is a correlation between the level of Ig in piglet serum in the first days of life and improvement of their own immunity.

20

Serum vitamin E and malondialdehyde concentrations in experimentally induced Mannheimia [Pasteurella] haemolytica infection in ewes fed dam milk or cow milk after birth

84%

Orbay A. E., Altiner A.

Bulletin of the Veterinary Institute in Puławy

|

2007

|

tom 51

|

nr 2

Twenty Chios newborn ewe lambs were used. Ten lambs were fed ad libitum colostrum and dam milk (group 1). The other ten lambs were separated from their dams immediately after birth and were not allowed to suckle normally, but were fed commercial cow's milk with a feeding bottle (group 2). When they were one year old, M. haemolytica serotype Al (10⁹ germs) was inoculated intratracheally to each ewe. Serum vitamin E and malondialdehyde (MDA) concentrations were determined in all the sheep before inoculation, and on days 1, 10, and 22 after inoculation, in addition to day 7 after antibiotic treatment. Serum vitamin E concentrations significantly decreased on day 1 after bacterial inoculation in group 1, rose on day 10 and continued to rise on day 22 after inoculation. The concentrations of the compounds did not significantly differ from the values observed on day 22 after antibiotic administration (on day 7 after treatment). Vitamin E concentration significantly decreased on day 1 after inoculation in group 2, and significantly rose on day 10 and then remained constant. Significant differences were observed between groups 1 and 2 before inoculation (P≤0.05). While serum vitamin E concentration of group 1 was higher than group 2 before inoculation, the concentrations in group 2 were significantly higher than in group 1 on days 10 and 22 after inoculation. Serum MDA concentrations gradually significantly increased in groups 1 and 2 after bacterial inoculation (P≤0.05), and then decreased to the pre-inoculation values after antibiotic treatment. No significant difference was observed between group 1 and group 2 on any sampling day. In conclusion, M. haemolytica infection induced lipid peroxidation associated with a rapid consumption of the antioxidant vitamin E (day 1), following by mobilisation of liver vitamin stores, probably more intense in ewes fed artificially after birth. The similar serum MDA concentrations in the two groups suggests that, a resistance against an infection can develop in sheep fed with artificially cow's milk within one year, but the effects of repeated infections on such animals still remains to be explored.

Ograniczanie wyników