Abstract
The buffalo and cattle population in Egypt reached about 4.898,893 and 3,476,396 heads, respectively, in 2019. The buffalo and cattle meat production represented around 43% and 45% of the total meat production in Egypt, respectively, and the average carcass weight of buffalo and cattle reached 318 kg and 336Kg in 2019. About 50% of livestock numbers are slaughtered off-slaughter houses due to a shortage in the capacity of slaughterhouses and other financial and administrative reasons. The conducted field survey of this study showed that the majority of Egyptian livestock markets lack live weight scales, and if available, they are expensive and frightening for the animals. Therefore, numerous feedlot enterprises hire an agent who can visually forecast the expected live weight of the exhibited feeder calves for sale in the market at a high charge. Most of the models to predict the weight of live cattle-bulls knowing the chest circumference were lacking such models for buffalo-bulls and were linear models that fit only limited periods of cattle-fattening. The sample survey included 500 buffalo males and 340 cattle males of different live weights from 14 villages in 4 provinces in the Nile Delta. The data were used to estimate the best-fitted model for Egyptian livestock. This study showed that the best-fitted model was curved linear. It was a quadratic form. For empirical application, the study designed a table to predict the live weight of buffalo and cattle males at a range of 100-200 cm chest circumference. The results showed that a 1% increase in the chest circumference was associated with a 2.4% and 2.8% increase in the buffalo and cattle male's circumference, which implicitly reflects higher live weight gain of cattle than buffalo males and better meat quality. Therefore, the farm price of cattle feeder males surpassed the buffalo by $1000.
Highlights
The buffalo and cattle population in Egypt reached about 4.898,893 and 3,476,396 heads, respectively, in 2019
The buffalo and cattle meat production represented around 43% and 45% of the total meat production in Egypt, respectively, which was measured as carcass weight in that year
About 50% of livestock are slaughtered off-slaughter houses due to a shortage in the capacity of existing slaughterhouses and high fees that should be paid for such marketing function [2]
Summary
The buffalo and cattle population in Egypt reached about 4.898,893 and 3,476,396 heads, respectively, in 2019. Therefrom, numerous feedlot enterprises hire agents at relatively high charge who have experience in guessing the body live-weight of the exhibited calves visually for sale in the livestock market. Numerous feedlot enterprises hire agents at relatively high charge rates to judge or forecast the liveweight of the exhibited salable calves in the market sites Such a fundamental problem was displayed by most of the respondents who were interviewed at the livestock markets. The exhibited buffalo and cattle calves and bulls for sale in livestock markets in Egypt are purchased either as feeder calves for feedlot system or finished fed calves for slaughtering. This study aimed to estimate mathematical models for buffalo bulls and beef bulls in Egypt's livestock markets that fit all-male classes, either by age or body weight. Even if a scale were available in the market, it would be much easier to measure the chest's perimeter than loading the animal on a scale, if it has not passed through such an operation before
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