EVALUATION OF SOW BODY DEVELOPMENT THROUGHOUT THE REPRODUCTION CYCLE AND ITS INFLUENCE ON REPRODUCTIVE PERFORMANCE IN THE DANUBE WHITE BREED
Keywords:
sow, backfat, weight, born alive, litter weghtAbstract
The dynamics of body development have been estimated in 757 Danube White sows in four periods of their reproduction cycle: at 90 kg of live weight; at mating; at 30-day gestation; and at 110-day gestation. Subject of control were the sow productivity traits: live weight; backfat thickness at points X1 and X2; depth of m. longisimus dorsi; and lean meat percentage. Subject of analysis were the reproductive ability of sows from first to seventh and more litters. The controlled sow’s reproduction traits were litter size at birth and at 21-st day, as well litter weight at birth and at 21-st day. The results representing reproduction capacity in relation to body development during gestation indicated that the sows with thicker backfat have litters with larger size (P ≤ 0.001) and weight (P≤0.01) at farrowing. Maintaining backfat of appropriate and constant thickness (18-20 mm) throughout the reproduction cycle of the Danube White sows is more essential for their reproductive efficiency and welfare than controlling it by standard testing or at the time of mating.
References
Apostolov, A., B. Szostak and M. Stefanova, 2014. Evaluation of the influence of some genetic, environmental factors and genetic relationships between growth performance and sow reproduction in the Danube White breed. Bothalia Journal, 44: 4.
Clowes, E. J., F. X. Aherne, A. L. Schaefer, G. R. Foxcroft and V. E. Baracos, 2003. Parturition body size and body protein loss during lactation influence performance during lactation and ovarian function at weaning in first-parity sows. J. Anim. Sci., 81: 1517-1528.
De Rensis, F., M. Gherpelli, P. Superchi and R. N. Kirkwood, 2005. Relationships between backfat depth and plasma leptin during lactation and sow reproductive performance after weaning. Anim. Reprod. Sci., 90: 95-100.
Dourmand, J. Y., M. Etienne, A. Prunier and J. Noblet, 1994. The effect of energy and protein intake of sows on their long longevity: a review. Livest. Prod. Sci., 40: 87-97.
Everaert, N., B. Vanderhaeghe, J. Mateusen, A. Dewulf, A. Van Soom, De Kruif and D. Maes, 2007. Effects of postweaning altrenogest treatment in primiparous sows. Vlaams Diergeneeskundig Tijdschrift, 76: 293-299.
Harvey, W., 1990. Users Guide for LSMLMW & MIXMDL PC-2 version. Mimeo, Ohio, 90 pp.
Hayter, A., 1984. Proof of the conjecture that the Tukey-Kramer method is conservative. Ann. Statist., 12: 61-75.
Kongsted, A. G., 2006. Relation between reproduction performance and indicators of feed intake, fear and social stress in commercial herds with group-housed non-lactating sows. Livest. Sci., 101: 46-56.
Maes, D. G. D., G. P. J. Janssens, P. Delputte, A. Lammertyn, de Kruif A., 2004. Backfat measurements in sows from three commercial pig herds: relationship with reproductive efficiency and correlation with visual body condition scores. Livest. Prod. Sci., 91: 57-67.
McKay, R. M., 1993. Preweaning losses of piglets as a result of index selection for reduced backfat thickness and increased growth rate. Can. J. Anim. Sci., 73: 437-442.
Serenius, T., K. J. Stalder, T. J. Baas, J. W. Mabry, R. N. Goodwin, R. K. Johnson, O. W. Robinson, M. Tokach and R. K. Miller, 2006. National Pork Producers’ Council Maternal Line National Genetic Evaluation Program: A comparison of sow longevity and trait associations with sow longevity. J. Anim. Sci., 84: 2590-2595.
Sterling, M. and N. Lundeheim, 1995. Some factors influencing pregnancy rate and subsequent litter size in primiparous sows. Acta Vet. Scan., 36: 353-365.
Szulc, K., D. Knecht, A. J. Müakosa, E. Skrzypczak and S. Nowaczewski, 2013. The influence of fattening and slaughter traits on reproduction in Polish Large White sows. Ital. J. Anim. Sci., 12: 16-20.
Young, L. G., G. J. King, J. Shaw, M. Quinton, J. S. Walton and I. McMillan, 1991. Interrelationships among age, body weight, backfat and lactation feed intake with reproductive performance and longevity of sows. Can. J. Anim. Sci., 71: 567-575.
Young, L. G., G. J. King, S. Walton, I. McMillan, M. Klevorick and J. Shaw, 1990. Gestation energy and reproduction in sows over four parities. Can. J. Anim. Sci., 70: 493–506.
Zaleski, H. M. and R. R. Hacker, 1993. Variables related to the progress of parturition and probability of stillbirth in swine. Can. Vet. J., 34: 109-113.
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