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Abstract Profitability is a principle goal of any enterprise. To increase profitability of beef production farms we should optimize production efficiency and marketing time. One way of increasing production efficiency is to take initial weight into consideration because initial weight is one of the important factors affecting feedlot cattle performance and profitability. Data for the present study were obtained from 852 beef records of Balady breed cattle (Native breed), Crossbred cattle (balady× Friesian) and buffaloes during the period from 2010 to 2012 on random sample of beef production sectors and localities. Data were collected from accurate records which were available in beef production farms and structured questionnaire method during field survey and the collected data arranged, summarized and then analyzed statistically using the computer programs SPSS/PC+ ”version 16” (SPSS, 2004). The collected data were introduced on the computer firstly introduced to Microsoft office excel and then through SPSS/PC+ program by the researcher. All the productive and managerial parameters affecting the beef production as well as their costs and returns were calculated and statistically analyzed for each animal according to fixed factors (types of fattening animals, locality and season). The current results are summarized as the following:- The main factors affecting beef production and profitability of beef production farms were feeding types and costs, veterinary management and its costs, fattening period, price of fattening animal, as well as other fixed and variable costs. I. Effect of types of fattening animals among different localities on variable resources affecting beef production: A-The value feed costs, total veterinary management cost, fattening period, weight gain, animal sale, total return, total costs and net return which differed significantly at among fattening animals of different localities on beef cattle. 1. The higher value of feed cost was found in crossbred cattle in Menofyia (4558.88 LE per cycle) while lower value of feed cost was found in balady breed cattle in Giza (2823.62 LE per cycle). 2. The higher value of total veterinary management cost was found inbuffaloes in Kaliobyia (92.29LE per cycle) while lower value of total veterinary management cost was found in balady breed cattle in Giza (73.97 LE per cycle). 3. The longest fattening period for animal was found in crossbred cattle in Menofyia (269.62 day) while lowest fattening period for animal was found in Balady breed cattle in Giza (206.94 day). 4. The highest absolute weight gain for animal was found in crossbred cattle in Giza (262.11Kg per cycle) while lowest absolute weight gain for animal was found in balady breed cattle in Kaliobyia (178.93 Kg per cycle). 5. The highest value for animal sale price was found in crossbred cattle in Kaliobyia (12054.16 LE) while lowest value for animal sale was found in buffaloes in Giza (9203.97 LE). 6. The highest value for total return was found in crossbred cattle in Menofyia (12079.66 LE) while the lowest value for total return was found in buffaloes in Giza (9244.00 LE). 7. The highest value for total costs was found in crossbred cattle in Menofyia (11055.58LE) while the lowest value for total costs was found in buffaloes in Giza (8022.20 LE). 8.The highest value for net return was found in crossbred cattle in Kaliobyia (2171.16LE) while lowest value for net return was found in balady breed cattle in Menofyia (490.20 LE). B-The collective and partial measures differed significantly at among types of fattening animals among different localities on beef cattle. 1. The highest percentage for net return/total costs was found in crossbred cattle in Kaliobyia (21.35 %) while the lowest percentage for net return/total costs was found in balady breed cattle in Menofyia (5.50 %). 2. The highest percentage for total return/total cost was found in crossbred cattle in Kaliobyia (121.35%) while lowest percentage for total return/total cost was found in balady breed cattle in Menofyia (105.50 %). 3. The highest value for costs of kilogram beef from total veterinary management costs was found in balady breed cattle in Kaliobyia (22.30Piaster) while the lowest value for cost of kilogram beef from total veterinary management costs was found crossbred cattle in Menofyia (14.45Piaster). II.Season and types of fattening animals effect on variable resources affecting beef production: A-The value feed costs, total veterinary management cost, fattening period, weight gain, animal sale, total return , total costs and net return. whichdiffered significantly at (P<0.05) among types of fattening animals of different seasons on beef cattle. 1. The higher value of feed cost was found in buffaloes in summer (4057.113 LE per cycle) while lower value of feed cost was found in balady breed cattle in summer (2940.80 LE per cycle). 2. The higher value of total veterinary management was found in crossbred in winter (85.96 LE per cycle) while lower value of total veterinary management was found in balady breed cattle in winter (80.31 LE per cycle). 3. The length of fattening period for fattening animal was higher in crossbred cattle in winter (271.39 day) while lower fattening period for animal was found in balady breed cattle in summer (211.25 day). 4. The higher weight gain for animal was found in crossbred cattle in winter (246.16 Kg per cycle) while lower weight gain for animal was found in balady breed cattle in summer (174.36 Kg per cycle). 5. The higher value for animal sale was found in crossbred cattle in summer (12273.57 LE) while lower value for animal sale was found in balady in winter (9238.27 LE). 6. The higher value for total return was found in crossbred cattle in summer (12313.57 LE) while lower value for total return was found in balady in winter (9277.81 LE). 7. The higher value for total costs was found in crossbred cattle in summer (10575.53 LE) while the lower value for total costs was found in buffaloes in winter (8943.80 LE). 8. The higher value for net return was found in crossbred cattle in summer (1738.04 LE) while lower value for net return was found in balady breed cattle in winter (165.9 LE).B-The collective and partial measures differed significantly at (P<0.05) among types of fattening animals of different seasons on beef cattle. 1. The highest percentage for net return/total costs was found in crossbred cattle in summer (18.11 %) while the lowest percentage for net return/total costs was found in balady breed cattle e in winter (6.40 %). 2. The highest percentage for total return/total cost was found in crossbred cattle in summer (118.11 %) while the lowest percentage for total return/total cost was found in balady breed cattle in winter (106.40 %). 3.The higher value for costs of kilogram beef from total veterinary management costs was found in balady cattle breed in winter (20.01 Piaster) while the lower value for cost of kilogram beef from total veterinary management costs was found in crossbred cattle in summer (16.18 Piaster). III- Locality and Season effect on variable resources affecting beef production. A-The value feed costs, total veterinary management cost, fattening period, weight gain, animal sale, total return , total costs and net return which differed significantly at mong different seasons of different localities on beef cattle 1. The higher value of feed cost was found in Menofyia in winter (4574.18 LE per cycle) while the lower value of feed cost was found in Giza in winter (3181.47 LE per cycle). 2. The higher value of total veterinary management was found in Kaliobyia in summer (92.47 LE per cycle) while the lower value of total veterinary management was found in Menofyia in summer (74.14 LE per cycle). 3. The higher weight gain for animal was found in Giza in winter (237.06 Kg per cycle) while the lower weight gain for animal was found in Menofyia in winter (221.84 Kg per cycle). 4. The longer fattening period for animal was found in Menofyia in winter (275.50 day) while the lower fattening period for animal was found in Giza in winter (222.65 day). 5. The higher value for animal sale was found in Menofyia in summer (11878.20 LE) while lower value for animal sale was found in Giza in summer (9498.16 LE). 6. The higher value for total return was found in Menofyia in summer (11918.18 LE) while lower value for total return was found in Giza in summer (9538.13 LE). 7. The higher value for total costs was found in Menofyia in summer (10703.08 LE) while the lower value for total costs was found in Giza in summer (8259.44 LE). 8. The higher value for net return was found in Kaliobyia in summer (1673.7 LE) while lower value for net return was found in Menofyia in winter (304.62 LE). B-The collective and partial measures differed significantly at among different seasons of different localities on beef cattle production. 1. The percentage of net return/total costs was found higher in Kaliobyia in summer (18.63 %) while percentage for net return/total costs was found lower in Menofyia in winter (10.65 %). 2. The higher percentage for total return/total cost was found in Kaliobyia in summer (118.63 %) while the lower percentage for total return/total cost was found in Menofyia in winter (110.65 %). 3.The higher value for costs of kilogram beef from total veterinary management costs was found in Kaliobyia in summer (19.41 Piaster) while lower value for cost of kilogram beef from total veterinary management costs was found in Menofyia in summer (14.82 Piaster). |