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The aim of the study was to evaluate the effects of gamma irradiation and vacuum packaging as combined process for improvement of ostrich meat shelf life. Ostrich meat was vacuum-packaged and irradiated at 0, 1 and 3.0 kGy. Bacterial growth and sensory quality were determined at 1,7, 14 and 21 days. Microbial analysis indicated that the combined use of vacuum packaging and irradiation had a significant...
The aim of the study was to evaluate the impact of diet supplementation with active yeast culture (Saccharomyces cerevisiae) on the expression of selected immune system genes in goat milk somatic cells (MSC) and on milk production traits. Eighteen dairy goats were divided by breed and parity into two groups: control (n = 9) and supplemented (n = 9). Each group consisted of 5 Polish White Improved...
The aim of the study was to determine the average length of gestation and its variation in a population of Silesian mares bred during a period of 55 years (1945-2000) in national studs and private farms in southern Poland. Considered was the sex of foals, season, month and year of birth,environmental conditions (national or private breeding centres), breeding history of a mare (number of foals born)and...
The effects of diets containing different levels of humic acid (HA) were determined on several blood and milk parameters in dairy goats. Eighteen Saanen goats (2 years old, 52 kg body weight) were fed three diets containing: 0 g HA/kg body weight (T1), 1 g HA/kg – (T2) or 3 g HA/kg – (T3) in a 3x3 latin square experimental design. Each period consisted of 21 days preliminary period and 7 days collection...
Melanophilin (MLPH) gene has been characterized as one of the candidate genes for coat colour dilution in human, mice and dog, but little is known about it in goat. Part of the 5’UTR (650bp,JQ743911) was sequenced leading to identify four polymorphic loci (g.G426A, g.A570G, g.G592T and g.612-614insCTC). The genetic diversity was analysed in 120 individuals of four breeds of goat. The possible transcription...
Ejaculates of four crossbred boars were frozen with or without 200 μg/mL of α-tocopherol. Frozen samples were then thawed in the extender containing either ascorbic acid (2.5, 5 or 10 mM) or pyruvate (1 or 5 mM) to obtain the samples in which sperm quality parameters and lipid peroxidation level were evaluated. Ascorbic acid decreased lipid peroxidation in a dose-dependent manner and increased post-thaw...
Three separate experiments were performed on fifty pregnant gilts (Experiment 1 and 2) and forty primiparous sows (Experiment 3) to examine the effect of human chorionic gonadotropin (hCG) administration on day 12 (Experiments 1 and 2) or 20 (Experiments 2 and 3) of pregnancy and intravaginal application of estradiol alone or estradiol + prostaglandin E2 (PGE2) on days 17-23 (Experiment 3) of pregnancy...
Forty five chickens (15 days old) were assigned to three groups: (1) control group fed a basal diet;group (2) fed the basal diet supplemented with 0.05% Aspergillus awamori and group (3) fed mixture of A. awamori 0.05% + selenium nano-particles 0.3%. Chickens were allowed free access to feed and raised for 12 days. Body weight gain and breast muscle weight increased in group 2 and 3 when compared...
In 765 Holstein-Friesian cows, the following ratios of β-lactoglobulin genotypes were found: 0.23 AA, 0.58 AB and 0.19 BB. The cows of AA genotype yielded more milk and milk fat than cows of genotype AB and BB. Cows with β-lactoglobulin AA and AB genotypes yielded respectively 224 and 190 kg more milk per lactation when compared to cows of BB genotype but the differences were not significant. There...
The present study aimed at assessing the genetic position of the Hungarian Gray population. Hungarian Grey cattle kept at different farms in Hungary have been sampled (34 herds, n=3,187 in the period of 2009-2011) to investigate their genetic relationship based on analysis of allelic variation at eleven microsatellite loci. The mean observed heterozygosities per herd were above a moderate degree (0...
Live performance, carcass traits and hind leg bone characteristics of crossbred rabbits of both sexes (Sx) of two sire breeds (SB): Vienna Blue – (VB) and Burgundy Fawn – (BF) born with different parity orders (P: 1, 2, ≥3), reared organically and slaughtered in the spring and summer, when they reached 2.8 kg, were evaluated. The slaughter age of VB crossbreds increased between P1 and P2 (P<0.05)...
The study covered 89 Polish warm-blooded half-bred mares (51 representing Polish Noble Half-Breds, 23 Wielkopolski and 15 Małopolski horses) which went through a 60-day training (terminated with a performance test) at the Biały Bór training centre. Assessed was motion and jump parameters of individual mares (recorded with a digital video camera) and the heart rate (HR) index – based on ongoing telemetric...
Ostrich meat samples were irradiated with 0.0, 1.0 and 3.0 kGy of gamma rays, packaged under vacuum and held refrigerated for 21 days. Lipid oxidation, shear force, colour and sensory quality were determined on day 0, 7, 14 and 21. Irradiated meat showed higher values (P<0.05) for a* (redness) than the non-irradiated samples as from day 21 under refrigeration. Irradiation increased (P<0.05)...
Fatty Acids (FAs) are a group of compounds with complex structure and different effects on the human organism. There are over 400 FAs in cows milk, many of them as trace amounts. In well fed cows, 95% of milk fat originate from feed and from synthesis in mammary gland, while about 5% come from body fat reserves. There are two ways of FAs formation within the mammary gland. Long-chain FAs originate...
The aim of the study was to investigate the relationship between colour, final pH and drip loss and to determine the incidence of PSE and DFD meat in Cobb 500 and Hubbard Classic broiler chickens. The carcass weight, breast meat weight and its share (%) of broiler carcass, pHu, breast meat colour (CIE-L*a*b*) and drip loss (%) were measured. On the basis of paleness (L*) breast meat was classified...
High populations of various insect species, especially common in the summer, may adversely affect farm animal health because of the transmission of contagious and parasitic diseases and the induction of insect allergies. Blood-sucking insects may compromise animal welfare and cause economic losses due to the annoyance and distress suffered by the animals, feeding interruptions and energy requirements...
Buffalo (Bubalus bubalis and Bubalus carabanesis) are important animals in livestock and agricultural economy of many countries, providing milk, meat and hides along with draught power.But, despite of immense advantages buffalo is a heavily neglected animal. The real potential of buffalo has never been realized and challenges such as reduced reproductive efficiency still needed to be addressed. At...
Changes in selected FAs level as influenced by inclusion of fresh lucerne (Medicago sativa L.) into a feeding ration were assesed in Czech Fleckvieh (dual purpose) and Holstein cows. Each of the balanced groups of 12 cows in mid-lactation was fed with a ration containing 12.7 kg (11.7% of dry matter) of fresh lucerne and then with a ration with preserved forage (maize and grass silages) only. Total...
The single-step method of genomic evaluation using both a uni-trait and a multi-trait animal model was applied for 20 linear type traits of Holstein cows in the Czech Republic. Phenotypic data on linear scoring were available for 143,208 Holstein cows first calved between years 2005 to 2010. Single nucleotide polymorphism (SNP) markers from the Illumina BovineSNP50 BeadChipV2 (Illumina Inc., San Diego,...
There is not much research done on the influence of sympathetic training on the emotional reaction of horses. The aim of the present study was to evaluate the emotional response and the stress level in horses to two sympathetic training methods: (1) with the use of the “round pen technique” (RP),and (2) in which the RP was not applied (SH). Twenty two naive half-bred Anglo-Arab horses (2.5 years ±3...
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