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KR-102962117-B1 - Pig transportation method and seasonal pig transportation system to improve pork quality

KR102962117B1KR 102962117 B1KR102962117 B1KR 102962117B1KR-102962117-B1

Abstract

The present invention relates to a transport method and a pig transport system for seasonal shipment that can improve the quality of pork by reducing stress on pigs at shipment. The pig transport method according to the present invention establishes a standard for the total accumulated vibration value of a vehicle that minimizes stress applied to pigs shipped before slaughter by quantifying the specific level of whole-body vibration that may be exposed in a transport vehicle depending on the driving method. When pigs are transported at shipment in accordance with this quantitative standard, aggressive behavior in pigs is reduced and the levels of lactic acid and cortisol in the blood are decreased, thereby minimizing the occurrence of abnormal meat and improving the quality of pork. In particular, the pig transport method according to the present invention can effectively reduce the occurrence of abnormal meat by optimizing various conditions at the time of pig shipment, such as external temperature, vehicle vibration frequency, and whether bedding is provided on the vehicle's interior floor. Furthermore, the pig transport system of the present invention establishes a standard for which factor plays the most important role in each season when transporting pigs at shipment with varying external temperatures. When pigs are transported at shipment in accordance with this quantitative standard, the occurrence of abnormal meat is minimized, thereby improving the quality of pork.

Inventors

  • 조진호
  • 송동철

Assignees

  • 충북대학교 산학협력단

Dates

Publication Date
20260507
Application Date
20231106

Claims (10)

  1. As a method for transporting pigs at shipment to improve the quality of pork, The above method has an average total vibration accumulation value (VDV total ) of the vehicle during pig transportation of 5.0 to 8.5 ms -1.75 , and A method for transporting pigs at shipment for improving the quality of pork, characterized in that the above total accumulated vibration value (VDV total ) is calculated using the following mathematical formula 1 based on the accumulated vibration values (VDV x,y,z) measured according to each of the x, y, and z axes of the transport vehicle. [Mathematical Formula 1] In the above equation, VDV x represents the accumulated vibration value measured along the x-axis, VDV y represents the accumulated vibration value measured along the y-axis, and VDV z represents the accumulated vibration value measured along the z-axis.
  2. delete
  3. In paragraph 1, A method for transporting pigs at shipment for improving the quality of pork, characterized in that the accumulated vibration values (VDV x,y,z ) measured according to each of the above x, y, and z axes are calculated using the following mathematical formula 2. [Mathematical Formula 2] In the above equation, T s represents the measurement period, N represents the number of measurement points, and a x,y,z represents frequency-weighted acceleration data in the x,y,z directions.
  4. In paragraph 1, The above method is a method for transporting pigs at shipment for improving the quality of pork, characterized by further providing bedding on the interior floor of the vehicle.
  5. In paragraph 1, The above method is a method for transporting pigs at shipment for improving the quality of pork, characterized by the temperature conditions during transport being 10 to 24℃.
  6. In paragraph 1, A method for transporting pigs at shipment to improve the quality of pork, characterized in that when transported by the above method, aggressive behavior of the pigs is reduced; and the content of lactic acid and cortisol in the blood is reduced.
  7. In paragraph 1, A method for transporting pigs at shipment to improve the quality of pork, characterized by a reduction in the occurrence of abnormal meat due to reduced stress on the pigs when transported by the above method.
  8. As a pig transportation system for seasonal shipment to improve pork quality, The above system has an average total vibration value (VDV total ) of 5.0 to 8.5 ms -1.75 when transporting pigs in winter when the temperature is below 10℃, and is equipped with bedding on the interior floor of the vehicle; it has bedding on the interior floor of the vehicle when transporting pigs in spring and autumn when the temperature is in the range of 10 to 24℃; and when transporting pigs in summer when the temperature exceeds 24℃, the average total vibration value (VDV total ) of the vehicle is 5.0 to 8.5 ms -1.75 , and A pig transport system for seasonal shipment to improve the quality of pork, characterized in that the above total vibration accumulation value (VDV total ) is calculated using the following mathematical formula 1 based on the vibration accumulation values (VDV x,y,z) measured according to each of the x, y, and z axes of the transport vehicle. [Mathematical Formula 1] In the above equation, VDV x represents the accumulated vibration value measured along the x-axis, VDV y represents the accumulated vibration value measured along the y-axis, and VDV z represents the accumulated vibration value measured along the z-axis.
  9. delete
  10. In paragraph 8, A pig transport system for seasonal shipment to improve the quality of pork, characterized in that the accumulated vibration values (VDV x,y,z ) measured according to each of the above x, y, and z axes are calculated using the following mathematical formula 2. [Mathematical Formula 2] In the above equation, T s represents the measurement period, N represents the number of measurement points, and a x,y,z represents frequency-weighted acceleration data in the x,y,z directions.

Description

Pig transportation method and seasonal pig transportation system to improve pork quality The present invention relates to a transport method capable of improving the quality of pork by reducing stress on pigs at shipment, and a pig transport system for seasonal shipment. With the spread of ethical consumption trends, animal welfare is recognized as a crucial aspect of modern livestock farming; accordingly, poultry and pig farms and the government, both domestically and internationally, have established their own animal welfare standards to keep pace with this trend. While overseas standards for animal welfare are established based on scientific evidence, domestic animal welfare certification standards are lacking in comparison. In particular, regulations regarding various factors in the transportation and slaughtering processes that can cause direct stress to poultry and pigs and affect quality degradation are currently insufficient. In addition, as pig farms become larger in scale, the number of pigs shipped from a single farm has also increased, and in order to save on transportation costs, a situation has arisen where more pigs are shipped than the recommended transport density (0.45 m² per head). Meanwhile, due to the distinct four seasons in Korea, the occurrence of PSE meat increases when pigs are shipped in the summer and winter when the external environment temperature is high or the daily temperature range is large, and there is a significant decrease in meat quality in pigs that have experienced severe temperature changes while being held before slaughter. The biggest factor in the deterioration of pork quality is pre-slaughter stress, and the handling methods of pigs before slaughter—namely, shipping handling, transport time, density, external temperature, vibration frequency, holding, and fasting—play a very important role, and it is reported that the incidence of PSE meat increases as a result. Under these circumstances, there are no established criteria for appropriately reducing pain and stress in pigs during transportation, so it is necessary to establish standards for appropriate transportation methods that consider domestic animal welfare. Against this backdrop, the inventors studied the effects of these factors on the quality of pork by varying various conditions, such as the external temperature at the time of pig shipment, the vibration frequency of the vehicle, and whether bedding is provided on the interior floor of the vehicle. As a result, the present invention was completed by establishing a standard that can reduce the occurrence of PSE meat by season. The present invention relates to a method for transporting pigs at shipment for improving the quality of pork, characterized in that the average of the total vibration value (VDV total ) of the vehicle during pig transport is 5.0 to 8.5 ms - 1.75. The above total vibration accumulation value (VDV total ) can be calculated using the following mathematical formula 1 based on the vibration accumulation values (VDV x,y,z ) measured according to each of the x, y, and z axes of the transport vehicle. [Mathematical Formula 1] In the above equation, VDV x represents the accumulated vibration value measured along the x-axis, VDV y represents the accumulated vibration value measured along the y-axis, and VDV z represents the accumulated vibration value measured along the z-axis, and the unit of VDV is m· s⁻¹.75 . The accumulated vibration value (VDV x,y,z ) measured according to each of the above x, y, and z axes can be calculated using the following mathematical formula 2. [Mathematical Formula 2] In the above equation, T s represents the measurement period, N represents the number of measurement points, and a x,y,z represents frequency-weighted acceleration data in the x,y,z directions. In one embodiment of the present invention, the method may further provide bedding on the interior floor of the vehicle, and the bedding may be made of rubber material. The above bedding can maintain a sense of stability by preventing the pig from slipping during vehicle transport, and can prevent heat loss when the pig sits or lies down during the winter when the outside temperature is low. In another embodiment of the present invention, the temperature condition during transport in the method may be 10 to 24°C. One of the various stress factors prior to slaughter is changes in ambient temperature. High or severely fluctuating ambient temperatures increase the occurrence of abnormal meat, and meat quality deterioration may occur in pigs subjected to significant temperature changes during the holding period before slaughter. In particular, high external temperatures can make thermoregulation difficult, potentially increasing the incidence of low-quality pork, while excessively low external temperatures can cause pigs to suffer from frostbite, which can be detrimental to pork quality. When transporting pigs using the pig transport method of the present invent