Genetic Trend for Milk Production and Longevity Traits of Egyptian Buffalo

GENETIC ASSESSMENT AND TRENDS FOR MILK PRODUCTION TRAITS IN A HERD OF EGYPTIAN BUFFALOES (Bubalus bubalis)

“…The data presented in Table 5 and Figures 1:5 reveal a positive genetic trend for each of TMY, FY, PY, LY, TSY, and SNFY. The genetic trend for TMY was of 8.154 kg/year (R 2 =0.6893), and 0.058 /year (R 2 =0.9351) for FY, 0.177 /year (R 2 =0.8475) for PY, 1.899 /year (R 2 =0.9109) for TSY, -2.063/year (R 2 = 0.7799) for SNFY Similar results as a positive genetic trend for milk traits were noted in Egyptian buffalo by Mohamed et al, (2010), EL-Hedainy et al (2020) and in Nili-Ravi buffalo by (Ahmad, 2007). In Egyptian buffalo, genetic trend for TMY was +12.55kg/ year of calving and the regression coefficient was +67 kg / year of calving (Mohamed et al, 2010).…”