EFFECT OF CALVING INTERVAL, DAYS OPEN AND DRY PERIOD ON DAIRY FARM PROFIT

Sosa, G.A.a; Atallah, S.Tb, Liza S. Redaa

Abstract


The present study aimed to determine the effect of calving interval, days open and dry period on the reproductive, productive and economic efficiency of dairy farms under Egyptian conditions. This study was carried out through field survey in different regions of Egypt include (Menofia, Kaliobeia and El Giza province) during the period extended from May 2009 to October 2011 on random samples of dairy production sectors. These sectors were individual Farmers (Fallah), Private farms and Governmental farms. The dairy breeds included in this study were Balady (local breed), Holstein- Friesian (exotic breed), and Cross-bred (Balady X Friesian). The reproductive, productive and economic data were collected from a cross-sectional and longitudinal and field survey. the value of total return and net profit differ significantly at (P<0.01) among different breeds the higher value found Holstein Friesian (35962.80 and 20968.40 LE respectively ) within days open range of ?80- 90 day and lower value found in Balady breed (7336.91 and 2697.54 LE, respectively) within days open range of ?80-90 day this due to Holstein high producing with days open ? 80-90 day lead to length of lactation to be( 305 day ) and dry period to be 60 day which is regarded as standard lactation length while in Balady breed low production per day and short lactation length. Also, the value of total return and net profit differ significantly at (P<0.01) among different breeds the higher value observed in Holstein Friesian (36882.30 and 19641.87 LE, respectively) within range of 61-90 day and lower value of net profit found in Balady breed ( 2109.63LE ) within range of 61-90 day and lower value of total return found in Balady breed (6449.57 LE) within range of ?30 -60 day, also this results indicated that the different breeds of cattle had significant (P<0.05) effect on average total return, as, higher net return found in Holstein and lower in Balady breed in Balady breed. The higher total return and net profit value observed in Holstein Friesian (36310.00 and 21459.14 LE, respectively) within range of ? 365-395 day while lower value of net profit found in cross breed (1348.32 LE) within range of calving interval (457-550 day). The obtained result concluded that, the breed, days open, dry period and calving interval of great economic effect on profitability of dairy farms and its economic efficiency. The longer dry period, more than 61 90 day; days open more than 80 90 days and the longer calving interval more than 365 395 days causes decreasing the total returns and increasing production costs with lowering the net profits

Key words


Calving, Cattle, Days Open, Dry period

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