Sow Prolificacy Depending on Milking Duration
Keywords:
sows, milking, piglet, prolificacyAbstract
The moment heat appears after farrowing depending on milking duration also depends on farrowing parity: the longer the milking duration, the shorter the anoestrus is. In females with oestrum during lactation, we could see that, in primiparous females heat appeared 14.8±1.2 days post partum; the shortest interval between farrowing and heat appearance in milking females was 8.5±0.2 days in primiparous females, while the longest interval was 26.5±1.7 days in pluriparous females. No matter the age category, the highest prolificacy was in females weaned after 28 days of milking, i.e. a mean value of 11.10±2.11 piglets/farrowing.
References
Deckert, Anne E., Dewez, Catherine E., Joe Ford, J. & Straw, Barbara E. The influence of the weaning-to-breeding interval on ovulation rate in parity-two sows. Swine Health and Production 1997, 5 (3): 89-93
Belstra, B. A., Flowers, W. L., Rozeboom, K. J. & See, M. T. Factors Contributing to Variation of Duration of Oestrus and Time of Ovulation in a Commercial Sow Herd. North Carolina State University, A & T State University, Cooperative Extension 2001.
Petroman Cornelia, Lozici Ana, Ispravnic Liana, Petroman I., Marin Diana, Ciolac Ramona, Văduva Loredana, Effective management of underground waters in areas fertilised with wastes from pig farms, International Scientific Conference ”Economy and society in the global space”, Tomori Pal College, Kallocsa, 26 november, 2013
Marin Diana, Pacala N., Petroman I., Petroman Cornelia, Fraiu Gianina, Untaru Ramona, Ciolac Ramona, Nursing management and its impact on weaned piglet weight, Porcine Research, Bioflux 2012,Volume 2(1), June, 30, ISSN-L 2248-311X, pg. 23-26
Cook, Christa M., Easter, R. A. & Bahr, Janice M. Leptin - Endocrine Signal Regulating the Onset of Post-weaning Oestrus in Pigs 1998.
Petroman, Cornelia; Petroman, I.; Marin, Diana; Benk, A.; Bela, Anegela.; Untaru, Ramona; St. Munteanu, Prolificacy and loss of piglets in sows exploited on pasture, Lucrari Stiintifice Management Agricol, Universitatea de Stiinte Agricole şi Medicina Veterinara a Banatului, Timisoara, Seria I, Management Agricol 2012 Vol. 14 No. 2 pp. 473-478
Mabry, J. W., Culbertson, M. S. & Reeves, D. Effects of lactation length on weaning-to-first-service interval, first-service farrowing rate, and subsequent litter size. Swine Health and Production 1996, 4 (4): 185-18
Marin Diana, N. Păcală, I. Petroman, Cornelia Petroman, Ramona Untaru, O. Şandru, E. Zappe, The role of endogenous factors upon swine productivity, Lucrări Științifice Management Agricol, Facultatea de Management Agricol, USAMVB Timişoara, 2011 , Vol XIII (2), seria I, pg 223-228;
Untaru Ramona Caliopi, Păcală N., Petroman I., Impact of environmental temperature on oestrus induction in gilts, Journal of Food Agriculture and Environment, Vol. 9, Issue 2, Pages 219-221, Part 1, Published January, ISSN: 1459-0255. ISSN (electronic): 1459-0263
Petroman I., Untaru Ramona Caliopi, Petroman Cornelia, Orboi Dora, Băneş A., Marin Diana, Bălan Ioana, Negruţ V, The influence of differentiated feeding during the early gestation status on sows prolificacy and stillborns, Journal of Food Agriculture and Environment, 2011, Vol. 9, Issue 2, Pages 223-224, Part 1, Published April, ISSN: 1459-0255. ISSN (electronic): 1459-0263
Petroman I., Avramescu Daniela, Petroman Cornelia, Marin Diana, Ciolac Ramona, Turc Bogdan, Lozici Ana, Habitat as environment in swine, Lucrări ştiinţifice Management Agricol, Seria 1, vol. XV (4) „Dezvoltarea rurală durabilă”, Facultatea de Management Agricol, Timişoara, 20 mai 2013
Petroman, I., Culea C, Sisteme de creştere şi exploatare a animalelor, Editura Mirton, Timişoara, 1998
Petroman I., Reproducţia suinelor, Editura Mirton , Timişoara 1997
Petroman, I., Stoica, Maria-Angela & Petroman, Cornelia. Perioada puerperală la scroafă. Timişoara: Editura Mirton 1998.
Škorjanc, D., Hohler, M. & Brus, M. Effect of Backfat Loss during Lactation on Weaning-to-Oestrus Interval of Sows at Gonadotropin Application. Animal Breeding 2008, 51 (6): 560-571
Untaru Ramona Caliopi, Păcală N., Petroman I., Heat induction in gilts and primiparous weaned sows, Journal of Food Agriculture and Environment, Vol. 9, Issue 2, Pages 230-231, Part 1, Published April, ISSN: 1459-0255. ISSN (electronic): 1459-0263
Willis, H. J., Zak, L. J. & Foxcroft, G. R. Duration of Lactation, Endocrine and Metabolic State, and Fertility of Primiparous Sows. Journal of Animal Science 2003, 81: 2088-2102
Şandru O., Petroman, I., Petroman Cornelia, Marin Diana, Peţ I., Untaru, Ramona Season influence upon sow’s pregnancy loss through abortions, Lucrări Științifice Management Agricol, Facultatea de Management Agricol, USAMVB Timişoara, USAMVB Timişoara, 20 May 2011, Vol XIII (2), seria I, pg. 281-286
Petroman I., Culea C., Mircea N., Petroman Cornelia, - Creşterea porcinelor, EdituraMirton, Timişoara 2002.
