Skip to main content
×
×
Home

Management factors affecting mortality, feed intake and feed conversion ratio of grow-finishing pigs

  • P. S. Agostini (a1), A. G. Fahey (a2), E. G. Manzanilla (a1), J. V. O’Doherty (a2), C. de Blas (a3) and J. Gasa (a1)...
Abstract

The aim of this study was to determine the effect of animal management and farm facilities on total feed intake (TFI), feed conversion ratio (FCR) and mortality rate (MORT) of grower-finishing pigs. In total, 310 batches from 244 grower-finishing farms, consisting of 454 855 Pietrain sired pigs in six Spanish pig companies were used. Data collection consisted of a survey on management practices (season of placement, split-sex by pens, number of pig origins, water source in the farm, initial or final BW) and facilities (floor, feeder, ventilation or number of animals placed) during 2008 and 2009. Results indicated that batches of pigs placed between January and March had higher TFI (P=0.006), FCR (P=0.005) and MORT (P=0.03) than those placed between July and September. Moreover, batches of pigs placed between April and June had lower MORT (P=0.003) than those placed between January and March. Batches which had split-sex pens had lower TFI (P=0.001) and better FCR (P<0.001) than those with mixed-sex in pens; pigs fed with a single-space feeder with incorporated drinker also had the lowest TFI (P<0.001) and best FCR (P<0.001) in comparison to single and multi-space feeders without a drinker. Pigs placed in pens with <50% slatted floors presented an improvement in FCR (P<0.05) than pens with 50% or more slatted floors. Batches filled with pigs from multiple origins had higher MORT (P<0.001) than those from a single origin. Pigs housed in barns that performed manual ventilation control presented higher MORT (P<0.001) in comparison to automatic ventilation. The regression analysis also indicated that pigs which entered to grower-finisher facilities with higher initial BW had lower MORT (P<0.05) and finally pigs which were sent to slaughterhouse with a higher final BW presented higher TFI (P<0.001). The variables selected for each dependent variable explained 61.9%, 24.8% and 20.4% of the total variability for TFI, FCR and MORT, respectively. This study indicates that farms can increase growth performance and reduce mortality by improving farm facilities and/or modifying management practices.

Copyright
Corresponding author
E-mail: alan.fahey@ucd.ie
References
Hide All
Anderson, DM, VanLunen, TA and Sproule, D 1990. Performance of grower finisher pigs obtaining feed from dry feeders or wet/dry feeders with different feeding spaces. Canadian Journal of Animal Science 70, 11971198.
Björklund, L and Boyle, LA 2006. Effects of finishing boars in mixed and single sex groups and split marketing on pig welfare. Acta Veterinaria Scandinavica 48 (suppl. 1), 2.
Choi, HL, Song, JI, Lee, JH and Albright, LD 2010. Comparison of natural and forced ventilation systems in nursery pig houses. Applied Engineering in Agriculture 26, 10231033.
Giersing, M and Andersson, A 1998. How does former acquaintance affect aggressive behaviour in repeatedly mixed male and female pigs? Applied Animal Behavior Science 59, 297306.
Gonyou, HW and Lou, W 2000. Effects of eating space and availability of water in feeders on productivity and eating behavior of grower/finisher pigs. Journal of Animal Science 78, 865870.
Hacker, RR, Ogilvie, JR, Morrison, WD and Kains, F 1994. Factors affecting excretory behavior of pigs. Journal of Animal Science 72, 14551460.
Harris, DL and Alexander, TJ 1999. Methods of disease control. In Diseases of swine, 8th edition (ed. BE, Straw, S, D’Allaire, WL, Mengling and DJ, Taylor), pp. 10771110. Iowa State University Press, Ames.
Hill, GM, Baido, SK, Cromwell, GL, Mahan, DC, Nelssen, JL and Stein, HH 2007. Evaluation of sex and lysine during the nursery period. Journal of Animal Science 85, 14531458.
Jensen, TB, Toft, N, Bonde, MK, Kongsted, AG, Kristensen, AR and Sørensen, JT 2012. Herd and sow-related risk factors for mortality in sows in group-housed systems. Preventive Veterinary Medicine 103, 3137.
Larriestra, AJ, Maes, DG, Deen, J and Morrison, RB 2005. Mixed models applied to the study of variation of grower-finisher mortality and culling rates of a large swine production system. Canadian Journal of Veterinary Research 69, 2631.
Latorre, MA, Iguácel, F, Sanjoaquín, L and Revilla, R 2009. Effect of sire breed on carcass characteristics and meat and fat quality of heavy pigs reared outdoor and intended for dry cured meat production. Animal 3, 461467.
Losinger, WC, Bush, EJ, Smith, MA and Corso, BA 1998. An analysis of mortality in the grower/finisher phase of swine production in the United States. Preventive Veterinary Medicine 33, 121145.
Maes, D, Duchateau, L, Larriestra, AJ, Deen, J, Morrison, RB and de Kruif, A 2004. Risk factors for mortality in grow-finishing pigs in Belgium. Journal of Veterinary Medicine Series B Infections Diseases and Veterinary Public Health 51, 321326.
Maes, D, Deluyker, H, Verdonck, M, Castryck, F, Miry, C, Vrijens, B and de Kruif, A 2000. Herd factors associated with the seroprevalences of four major respiratory pathogens in slaughter pigs from farrow-to-finish pig herds. Veterinary Research 31, 313327.
Myers, AJ, Goodband, RD, Tokach, MD, Dritz, SS, Bergstrom, JR, DeRouchey, JM and Nelssen, JL 2010. The effects of feeder-trough space and gap setting on growth performance of finishing pigs. Journal of Animal Science 93 (suppl. 1), 562563.
Oliveira, J, Guitián, J and Yus, E 2007. Effect of introducing piglets from farrow-to-finish breeding farms into all-in all-out fattening batches in Spain on productive parameters and economic profit. Preventive Veterinary Medicine 80, 243256.
Oliveira, J, Yus, E and Guitián, J 2009. Effects of management, environmental and temporal factors on mortality and feed consumptions in integrated swine fattening farms. Livestock Production Science 123, 221229.
Patterson, DC 1991. A comparison of offering meal and pellets to finishing pigs from self-feed hoppers with and without built-in watering. Animal Feed Science and Technology 34, 2936.
Payne, HG 1991. The evaluation of single-space and wet-and-dry feeders for the Australian environment. In Manipulating Pig Production III (ed. ES, Batterham), pp. 158161. Australasian Pig Science Association, Albury, NSW, Australia.
Rodríguez, SV, Jensen, TB, Plà, LM and Kristensen, AR 2011. Optimal replacement policies and economic value of clinical observations in sow herds. Livestock Production Science 138, 207219.
Rose, N, Eveno, E, Grasland, B, Nignol, AC, Oger, A, Jestin, A and Madec, F 2009. Individual risk factors for Post-weaning Multisystemic Wasting Syndrome (PMWS) in pigs: a hierarchical Bayesian survival analysis. Preventive Veterinary Medicine 90, 168179.
Saha, CK, Zhang, G, Kai, P and Bjerg, B 2010. Effects of a partial pit ventilation system on indoor air quality and ammonia emission from a fattening pig room. Biosystems Engineering 105, 279287.
Sasaki, Y and Koketsu, Y 2008. Mortality, death interval, survivals, and herd factors for death in gilts and sows in commercial breeding herds. Journal of Animal Science 86, 31593165.
van der Fels-Klerx, HJ, Puister-Jansen, LF, van Asselt, ED and Burgers, SLGE 2011. Farm factors associated with the use of antibiotics in pig production. Journal of Animal Science 89, 19221929.
van Heugten, E 2010. Growing-finishing swine nutrient recommendations and feeding management. In National Swine Nutrition Guide (ed. DJ, Meisinger), pp. 8095. Iowa State University Press, Ames.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

animal
  • ISSN: 1751-7311
  • EISSN: 1751-732X
  • URL: /core/journals/animal
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed