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Comparison of growth performance of Berkshire purebreds and crossbreds sired by Hereford and Tamworth breeds raised in alternative production system

  • Park, Hyeon-Suk (Department of Animal Sciences, College of Agriculture and Environmental Sciences, North Carolina Agricultural and Technical State University) ;
  • Spann, Kristal (Department of Animal Sciences, College of Agriculture and Environmental Sciences, North Carolina Agricultural and Technical State University) ;
  • Whitley, Niki (Department of Agricultural Sciences, Fort Valley State University) ;
  • Oh, Sang-Hyon (Department of Animal Sciences, College of Agriculture and Environmental Sciences, North Carolina Agricultural and Technical State University)
  • Received : 2016.12.27
  • Accepted : 2017.03.21
  • Published : 2017.09.01

Abstract

Objective: The objective of the present study was to compare growth performance of Berkshire purebred pigs (BB), Hereford (HB) and/or Tamworth (TB) sired Berkshire crossbred pigs reared in a hoop structure in two experiments. Methods: In the first experiment, BB was compared to TB while HB and TB were compared in the second. Body weights (BW) were recorded at 3 days of age and every 28 days from birth until 140 days of age. There was no significant difference between the BW of BB and TB, but HB was heavier than TB by 84 days of age. Least square means of average daily gain (ADG) were evaluated using one-way analysis of variance. Results: The mean parity (${\pm}$standard deviation) of the sows was $3.42{\pm}2.14$ and a total of 45 farrowing occurred from year 2012 to 2014. The mean number of total born, number born alive, number of mummies, and number weaned were $9.23{\pm}2.52$, $7.87{\pm}2.53$, $0.04{\pm}0.21$, and $5.94{\pm}2.74$, respectively. Parity did not have a significant effect on the growth performance of the pigs. For BB and TB, there was only one time frame in which there was a significant difference in the ADG: between 28 and 56 days of age. For HB and TB, the overall ADG of HB was significantly greater than the total ADG of TB. Conclusion: The breed of the sire did not affect the growth performance of the progeny between Berkshire purebreds and Tamworth${\times}$Berkshire crossbreds. The breed of the sire did have an effect between Hereford and Tamworth sired Berkshire crossbreds (p<0.05). The Hereford sired pigs were found to have increased growth performance compared to Tamworth sired.

Keywords

Berkshire;Pigs;Crossbreds;Growth;Alternative Production System

Acknowledgement

Grant : Outdoor Swine Production Management

Supported by : USDA National Institute of Food and Agriculture

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