The Evolution of Holstein Breed Cows´ Health Udder of Different Provenance According to Somatic Cell Count in Milk

A high quality milk production requires a constant health udder observation. The somatic cell count is used as a reliable and internationally recognized method. The former research showed a jeopardized udder health condition of high productive milk cows. An insufficient milk production in the last few years caused Croatia to import a large number of Holstein cows. We wanted to compare a possible distinction of health udder in imported and domestic cows. Research was conducted on 257 Holstein cows out of which 155 were domestic and 102 imported. During the research period, domestic cows had a lower medium rate for LSCC (3,77) than the imported cows (3,94). Better results in domestic cows were also found in percentage share to 400.000 SCC/ml of milk (72,90% in domestic cows and 65,69% in imported cows). Results were compared according to lactations, lactation stages and farms, but statistically significant differences were not found. Health udder as the most important factor of quality milk production should be included into cattle-breeding program of Croatia as soon as possible. According to research results, domestic cows have good predispositions for maintaining a healthy udder and quality milk

The Evolution of Holstein Breed Cows´ Health Udder of Different Provenance According to Somatic Cell Count in Milk

A high quality milk production requires a constant health udder observation. The somatic cell count is used as a reliable and internationally recognized method. The former research showed a jeopardized udder health condition of high productive milk cows. An insufficient milk production in the last few years caused Croatia to import a large number of Holstein cows. We wanted to compare a possible distinction of health udder in imported and domestic cows. Research was conducted on 257 Holstein cows out of which 155 were domestic and 102 imported. During the research period, domestic cows had a lower medium rate for LSCC (3,77) than the imported cows (3,94). Better results in domestic cows were also found in percentage share to 400.000 SCC/ml of milk (72,90% in domestic cows and 65,69% in imported cows). Results were compared according to lactations, lactation stages and farms, but statistically significant differences were not found. Health udder as the most important factor of quality milk production should be included into cattle-breeding program of Croatia as soon as possible. According to research results, domestic cows have good predispositions for maintaining a healthy udder and quality milk

Meat Quality Indicators and their Correlation in Two Crosses of Pigs

The study was performed on 53 carcasses of three way crossed castrated pigs divided into two groups regarding the breed of the terminal sire (1st group; Pietrain, n=25 and 2nd group; Large White, n=28). After the slaughter at approximately 100 kg, following measurements were taken from MLD samples: pH45, pH24, water holding capacity (w.h.c.), consistency and Minolta L*a*b* values. Significant differences between the groups were found for pH45 (p<0.01) values and Minolta L* (p<0.01), a* (p<0.05) and b* (p<0.01) values, while no significant differences were found for pH24, w.h.c. and consistency. The classification of meat from both groups according to quality (PSE, suspicious, .normal.) by different criteria (pH45, pH24, Minolta L*) showed obvious discrepancies which may have occurred due to recently determined additional quality classes such as RSE, RFN and PFN which points out the need of further investigations in that direction. In the 1st group pH45 was not correlated with any other meat qulity traits, while in 2nd group significant correlations for this trait were found with pH24 (r=0.43) and w.h.c. (r=-0.51). Ultimate pH values measured on the pig carcasses of the 1st group were correlated with w.h.c (r=-0.46) and Minolta L* value (r=- 0.43), while in 2nd group this trait was significantly correlated with all other indicators of meat quality (p<0.01). In the 1st group of samples minolta L* values were significantly correlated also with w.h.c. (r=0.40), while in the 2nd group this indicator was in significant correlation with all other indicators with exception of pH45

Meat Quality Indicators and their Correlation in Two Crosses of Pigs

The study was performed on 53 carcasses of three way crossed castrated pigs divided into two groups regarding the breed of the terminal sire (1st group; Pietrain, n=25 and 2nd group; Large White, n=28). After the slaughter at approximately 100 kg, following measurements were taken from MLD samples: pH45, pH24, water holding capacity (w.h.c.), consistency and Minolta L*a*b* values. Significant differences between the groups were found for pH45 (p<0.01) values and Minolta L* (p<0.01), a* (p<0.05) and b* (p<0.01) values, while no significant differences were found for pH24, w.h.c. and consistency. The classification of meat from both groups according to quality (PSE, suspicious, .normal.) by different criteria (pH45, pH24, Minolta L*) showed obvious discrepancies which may have occurred due to recently determined additional quality classes such as RSE, RFN and PFN which points out the need of further investigations in that direction. In the 1st group pH45 was not correlated with any other meat qulity traits, while in 2nd group significant correlations for this trait were found with pH24 (r=0.43) and w.h.c. (r=-0.51). Ultimate pH values measured on the pig carcasses of the 1st group were correlated with w.h.c (r=-0.46) and Minolta L* value (r=- 0.43), while in 2nd group this trait was significantly correlated with all other indicators of meat quality (p<0.01). In the 1st group of samples minolta L* values were significantly correlated also with w.h.c. (r=0.40), while in the 2nd group this indicator was in significant correlation with all other indicators with exception of pH45