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The purpose of the study was to investigate the effects of dietary hempseed or camelina cakes on the fatty acid profiles of intramuscular fat in quail. A total of 189 one-day-old quail were allocated to three dietary treatment groups. The diet of the control (C) group was supplemented with 10% rapeseed cake, whereas the rapeseed in experimental 1 (HE) and experimental 2 (CA) groups was replaced by, respectively, hempseed cake and camelina cake in the same proportions. The length of the study was 42 days. Dietary enrichment with camelina cake increased the α-linolenic fatty acid (ALA) content in the meat of CA group 2.5 times (p < 0.01). The muscle tissues of CA contained 3.4–3 times more eicosapentaenoic acid (p < 0.01), 1.2 times more docosapentaenoic acid (p < 0.05–p < 0.01) and 1.3 times more docosahexaenoic acid (p < 0.01) and, thus, demonstrated the increase in total long chain (LC) n-3 polyunsaturated fatty acids (PUFA) (p < 0.01) and total n-3 PUFA (p < 0.01) compared with the C group. The ALA and total n-3 PUFA content in the breast and leg meat of HE-treated quail were, respectively, 1.3 and 1.1 times higher (p < 0.01) than in the C group but the accumulation was lower compared to the CA group. The content of γ-linolenic acid was found to be 1.21–1.31 times higher in HE quail meat (p < 0.01). However, hempseed cake supplementation had a negative effect on growth performance. The supplementation of quail feed with camelina or hempseed cakes resulted in the production of healthy meat with an increased n-3 PUFA content. [ABSTRACT FROM AUTHOR]

The aim of the present study is to analyse the biometrical parameters of the testes and morphological characteristics of spermatozoa of different aged wild boars that are hunted outside of the mating season in order to evaluate the expediency of preservation and use of younger males for breeding in the next season. The study indicates that despite obvious biometric differences between the testes of young and mature boars (the weight is 2.6 and the volume is 3.4 times lower in juvenile than in mature specimens) and more effective spermatogenesis of mature boars (the amount of intact spermatozoa is from 2 to 3 times higher), young boars are able to perform reproductive function during the anoestrus period. During this period, the epididymis of both young and mature boars contains 31-35% of spermatozoa with cytoplasmic drops that indirectly indicates comparatively high sexual activity of both groups of boars even during the anoestrous period. Therefore, even the second-year boars can spread, e. g., African swine fever and have to be included into the extermination scheme of the prevention measures. [ABSTRACT FROM AUTHOR]

The purpose of the study was to investigate the effects of dietary hempseed or camelina cakes on the fatty acid profiles of intramuscular fat in quail. A total of 189 one-day-old quail were allocated to three dietary treatment groups. The diet of the control (C) group was supplemented with 10% rapeseed cake, whereas the rapeseed in experimental 1 (HE) and experimental 2 (CA) groups was replaced by, respectively, hempseed cake and camelina cake in the same proportions. The length of the study was 42 days. Dietary enrichment with camelina cake increased the α-linolenic fatty acid (ALA) content in the meat of CA group 2.5 times ( p < 0.01). The muscle tissues of CA contained 3.4-3 times more eicosapentaenoic acid ( p < 0.01), 1.2 times more docosapentaenoic acid ( p < 0.05- p < 0.01) and 1.3 times more docosahexaenoic acid ( p < 0.01) and, thus, demonstrated the increase in total long chain (LC) n-3 polyunsaturated fatty acids (PUFA) ( p < 0.01) and total n-3 PUFA ( p < 0.01) compared with the C group. The ALA and total n-3 PUFA content in the breast and leg meat of HE-treated quail were, respectively, 1.3 and 1.1 times higher ( p < 0.01) than in the C group but the accumulation was lower compared to the CA group. The content of γ-linolenic acid was found to be 1.21-1.31 times higher in HE quail meat ( p < 0.01). However, hempseed cake supplementation had a negative effect on growth performance. The supplementation of quail feed with camelina or hempseed cakes resulted in the production of healthy meat with an increased n-3 PUFA content.