Indicators of milk and beef quality
نویسنده
چکیده
All the review papers and the short communications presented in this session are in this EAAP publication entitled “Indicators of milk and beef quality”. Additional papers from invited authors were written in 2004 and then added to complete the publication although not all topics related to quality indicators are covered in the present publication. Review papers aim to describe the state of the art in different disciplines including genetics, physiology, nutrition, biochemistry as well as social and economic aspects. Short communications are recent and new results given as examples of the research done in these different areas. All the papers were peer-reviewed by international experts.
منابع مشابه
Milk and Beef Production in Temperate Climates
Milk production in the temperate climates accounts for 66% of the world milk output. In North America only about 20% of beef originates from dairy herds, while in Europe beef production is a by-product of dairying. Several studies showed small genetic correlations between milk and beef traits, thus suggesting the possibility of simultaneous selection for both .characteristics. European breeding...
متن کاملYield and Quality of Holstein Beef
Beef derived from Holstein steers is a significant source of the U.S. beef supply. The nation’s 9.1 million dairy cows in 2003 were 22% of the U.S. cow herd (NASS, 2005). Given the typical breed distribution of dairy cows, calving interval, full-term pregnancy rate, peri-natal calf death loss (NAHMS, 2002), gender distribution, dairy beef placement (80%) and survival to market (94%), it can be ...
متن کاملPreservative effects of sumac hydro-alcoholic extract and chitosan coating enriched along with Zataria multiflora Boiss essential oil on the quality of beef during storage
Beef is susceptible to rapid spoilage due to its high amount of protein (18.00%) and moisture (72.00%). Food industries have recently found methods to extend beef shelf-life. The influence of beef dipping in hydro-alcoholic extract of sumac (SE) and chitosan (CH) coating incorporated with Zataria multiflora essential oil (ZEO) on microbial, chemical and sensory quality of beef was eval...
متن کاملGenetic Improvement of Heifer Pregnancy and Performance in Beef Cattle
Current genetic improvement programs should place more emphasis on improving profitability than on one or a small group of traits, under the framework of economic relevance (Golden et al., 2000). When profit is defined generally as revenue minus cost, true economically relevant traits (ERT) have a direct impact on either income or expenses, whereas indicator traits provide a means to increase a...
متن کاملMilk production traits of beef cows as affected by horn fly count and sire breed type.
Horn fly infestations negatively impact economic traits of beef cattle. Our objective was to determine the impact of horn flies on beef cattle milk yield and quality. Cows (n = 53) were derived from Brangus dams and sired by Bonsmara (n = 7), Brangus (n = 13), Charolais (n = 8), Gelbvieh (n = 5), Hereford (n = 12), and Romosinuano (n = 8) bulls. Horn fly counts and estimates of milk yield and q...
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