Publications by authors named "A Soufleri"
The objective of this study was to derive the estimated breeding values (EBVs) of Holstein sires for colostrum and passive transfer of immunity traits to (1) estimate the genetic association between these new traits and established production, conformation, and function, and (2) explore whether sires can be classified in specific profiles regarding the new traits. For cow colostrum traits, the study included 699 daughters of 67 sires from 6 commercial dairy herds. The number of daughters per sire ranged from 5 to 49.
View Article and Find Full Text PDFA retrospective study was conducted to evaluate temporal patterns of environmental heat stress during the in-uterus period of development (IUP) and the 3-month post-natal (PN) period of dairy heifers, and to estimate their association with the age at first calving (AFC). Data from 30 dairy herds in Northern Greece including 9098 heifers were extracted from National Cattle Database. Data (2005-2019) regarding 230,100 farm-specific ambient daily temperature and relative humidity records, were obtained from ERA5-Land.
View Article and Find Full Text PDFThe objective was to estimate the genetic parameters of serum total protein concentration in newborn calves (calfSTP) and post parturient dairy cows (cowSTP). The study included 1013 calves and 989 cows from 10 dairy farms. Calf blood samples were collected 24-48 h after parturition while cow blood and colostrum samples were collected in the first 24 h after calving.
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- The study examined colostrum composition and yield in 1,017 healthy Holstein cows across 10 farms, focusing on factors that influence these characteristics.
- The average colostrum content for fat, protein, lactose, and total solids (TS) was found to be 6.37%, 17.83%, 2.15%, and 25.80%, respectively, with parity affecting protein and TS positively while reducing fat content.
- Additionally, the timing of colostrum collection post-calving and overall yield negatively impacted protein and TS content, emphasizing the importance of fat assessment for meeting the energy needs of newborns.
The main objective of this study was to assess the genetic background of colostrum yield and quality traits after calving in Holstein dairy cows. The secondary objective was to investigate genetic and phenotypic correlations among laboratory-based and on-farm-measured colostrum traits. The study was conducted in 10 commercial dairy herds located in northern Greece.
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