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Academic literature on the topic 'Farrowing induction'
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Journal articles on the topic "Farrowing induction"
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Sharp, Katharine G., Kayla M. Mills, Larissa Shirley, Ricardo Garcia, and Kara R. Stewart. "PSVII-21 Impacts of various farrowing induction protocols on attended farrowings." Journal of Animal Science 98, Supplement_3 (2020): 215. http://dx.doi.org/10.1093/jas/skaa054.373.
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Abstract Genetic selection has resulted in increased number of piglets born accompanied by an increase in pre-weaning mortality. Attending farrowings to assist sows is effective at reducing mortality in piglets. Inducing sows to farrow may help to ensure that labor is present for the farrowing process. The purpose of this study was to evaluate farrowing induction protocols on the farrowing process. Primiparious and multiparious sows (n=58) were assigned to one of the following treatments: no induction (NO, n=24), 2cc of Lutalyse on d114 followed by 1cc Oxytocin 24 hours later (OXY24, n=13), 2cc of Lutalyse on d114 followed by 0.5cc Oxytocin 6 and 12 hours later (OXY6, n=21). Details of the farrowing process were recorded in addition to sow blood glucose and hemoglobin levels at four intervals: piglet 1, piglet 6, 2 hours after piglet 1, and end of farrowing. Seventy-seven percent (10/13) of the OXY24 sows farrowed within 36 hours of induction compared to 62% (13/21) of the OXY6 sows. The length of the farrowing process was not different among treatments (NO = 3.55 ± 0.3, OXY24 = 4.76 ± 1.13, OXY6 = 3.86 ± 0.5, P=0.22) or parity groups (P=0.58). Across all treatments, total born averaged 13.2 piglets with 5.5% stillborns and 4.5% mummies. Induction had no effect on piglets born alive (NO = 11.9, OXY24 = 12.4, OXY6 = 11.4, P=0.42), stillborns (NO = 0.71, OXY24 = 0.70, OXY6 =1.76, P=0.73) or mummies (NO = 0.54, OXY24 = 0.70, OXY6 = 0.71, P=0.84). Number of piglets that were pulled from the sow did not differ among treatments (P=0.89) or by parity (P=0.18). Blood glucose and hemoglobin at the end of the farrowing process was not different among treatments (P=0.75 and P=0.83, respectively). These current results indicate farrowing induction protocols have no negative impacts on attended farrowings.
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Shirley, Larissa K., Katie Brown, Caleb M. Shull, and Amanda Minton. "PSV-6 Effect of Farrowing Induction on the Farrowing Process and Piglet Survivability." Journal of Animal Science 99, Supplement_1 (2021): 209–10. http://dx.doi.org/10.1093/jas/skab054.343.
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Abstract The objective of this study was to determine the effect of farrowing induction on the farrowing process and piglet livability on a commercial sow farm. Sows (n=594) were blocked by parity (P0, P1, or P2+) and randomly allotted to one of three treatment groups; no induction (CON), or 1cc prostaglandin the morning of d115 followed by either 1cc prostaglandin 6 hours later (LUT) or 0.25cc oxytocin 6 hours later (LO). Sows that farrowed within 6 hours of their initial prostaglandin remained on the study as a separate treatment group (LUT1). Sows that did not farrow by d117 were induced and removed from study. A total of 279 farrowings, resulting in 3,996 piglets born, were attended and details of the farrowing process recorded. During farrowing a 5ml colostrum sample was collected for evaluation of total protein and fat. Sows were followed after weaning and subsequent reproductive performance was recorded. As expected, LUT1 farrowing date was earlier than the other three treatments (P< 0.0001). Farrowing duration was not different among treatments (P=0.2986, average 3.5–3.9 hours). Farrowing induction did not affect NBA (P=0.124), total born (P=0.187), percent mummies (P=0.925), or percent stillborns (P=0.687). Individual piglet birth weights were lower in LUT1 when compared to CON, LUT and LO (3.00 vs 3.07, 3.09 and 3.12 lbs, P=0.011). The number of piglets requiring assistance during farrowing was greater for LUT and LUT1 (21% and 21.3%) compared to CON and LO (15.1% and 17.5%, P=0.003). The number of piglets born with broken umbilical cords was higher in LUT (39.6%) compared to all other treatments (CON=33.3%, LO=33.5%, LUT1=32.8%, P=0.002). Pre-weaning survivability was not different among treatments (CON=82.3%, LUT=80.7%, LO=81.4%, LUT1=81.6%, P=0.738). Colostrum from CON tended to have higher fat compared to LUT, LO and LUT1 (9.2 vs 8.3, 8.1 and 8.6%, P=0.0168). No differences in wean-to-first service, total born, percent stillborns, or percent mummies were found in subsequent farrowings.
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Wähner, Martin, and U. Hühn. "Improving management for the benefit of people and pigs: Synchronized farrowing in the pig." Biotehnologija u stocarstvu 19, no. 1-2 (2003): 1–9. http://dx.doi.org/10.2298/bah0302001w.
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The induction of farrowing within a reproductive management framework already plays a considerable routine role in the husbandry of the sow herd. This issue increases the awareness of the effects that the various chosen farrowing synchronizing injections and treatment programs have in parturient sows and piglets. The application of biotechnologically derived methods to synchronize the commencement of the birth process and the management of farrowing can be traced back to the 1970?s. Following the availability of Prostaglandin F2? various treatment programs for synchronizing farrowings were developed. The injection to induce farrowing must not be given prior to the 114th day of gestation, in order to ensure minimal risk of affecting the final and important growth surge of the fetuses. The combination of PGF2? with a long acting Oxytocin (Hypophysin?) allows for a further reduction in the individual variation in the commencement of farrowing and reduces the duration of farrowing for each parturient sow. The synchronization eases the observation, recording and husbandry tasks required for the sow and neo-natal piglets, facilitates an effective cross fostering system and where problematic, reduces the frequency of dystocias and MMA type disorders.
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Mills, Kayla M., Larissa K. Shirley, Katharine G. Sharp, Ricardo M. Garcia, and Kara R. Stewart. "PSV-1 Effects of Induction on Piglet Blood Parameters at Time of Farrowing." Journal of Animal Science 99, Supplement_1 (2021): 207. http://dx.doi.org/10.1093/jas/skab054.338.
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Abstract Typically, sows are induced to farrow using prostaglandin followed by an injection of oxytocin 24 hours later. Benefits of induction can include decreased rate of stillbirths, dystocia, and postnatal mortality along with increasing the likelihood of farrowings being attended. Several studies have indicated that oxytocin administration may negatively impact fetal oxygen supply during parturition, potentially from umbilical cords breaking prior to birth, resulting in increased preweaning mortality. Therefore, the objective of this study was to determine if various induction protocols impact umbilical cord breakage and fetal blood parameters at birth. Fifty-eight primiparous and multiparous sows were assigned to one of three treatments: no induction (NO; n=24), or 2 cc Lutalyse administered on d114 of gestation followed by either 1 cc of oxytocin 24 hours later (OXY24; n=13) or 0.5 cc of oxytocin at 6 and 12 hours after Lutalyse (OXY6; n=21). Details of the farrowing process were recorded, and umbilical cord blood was collected from piglets at birth and evaluated on an iSTAT machine using an Abbott EC8+ test cartridge. There were no differences in total born, number born alive, stillborns, mummies, or assistance needed during farrowing. Sows in the OXY24 treatment tended to have longer farrowings when compared to both NO and OXY6 (5.6 vs 3.7 vs 3.7 hours; P=0.09). OXY24 gilts (38%) and NO sows (33%) tended to have more piglets born with broken umbilical cords than other parities and treatments (OXY24 sows: 19%; NO gilts: 18%; OXY6 gilts: 25%; OXY6 sows: 18%; P=0.07). Piglets born from NO sows had higher base excess, total carbon dioxide, and glucose which suggests that these piglets had prolonged moments of asphyxiation (P< 0.01). OXY24 piglets had the lowest blood pH which is indicative of hypoxic birthing conditions (P< 0.01). There were no signs of asphyxia in the blood parameters of piglets born from OXY6 sows. Therefore, multiple low doses of oxytocin to induce farrowing may be more beneficial for the welfare of the piglet during farrowing.
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Ko, J. C. H., L. E. Evans, W. H. Hsu, and S. M. Hopkins. "Farrowing induction with cloprostenol-xylazine combination." Theriogenology 31, no. 4 (1989): 795–800. http://dx.doi.org/10.1016/0093-691x(89)90024-1.
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Decaluwe, R., G. P. J. Janssens, I. Declerck, A. De Kruif, and D. Maes. "Induction of parturition in the sow." Vlaams Diergeneeskundig Tijdschrift 81, no. 3 (2012): 158–65. http://dx.doi.org/10.21825/vdt.v81i3.18353.
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Inducing parturition in the sow can be used to improve farrowing supervision, which may lead to more weaned piglets. However, if not applied properly, it may lead to premature delivery. Therefore, induction of parturition should be performed not earlier than two days before the average gestation length of the sows of a farm. To induce parturition, different protocols, such as single administration of prostaglandins, double administration of prostaglandin with 6-hour interval (split-dose technique) and a combination of prostaglandins and oxytocin 24 hours later, and different administration routes, such as intramuscular injection in the neck region and injection in the vulvar region, can be used. Other strategies exist but they are less effective and/or less frequently used. A single injection of prostaglandins results in 60% of the sows farrowing within working hours (22-32 hours after injection). Using the split-dose technique or the combination of prostaglandins and oxytocin 24 hours later, the percentage increases with 20%. The use of oxytocin however increases the risk of asphyxia in the piglets, especially in case of inappropriate use. Whether farrowing induction should be applied and which protocol used depend on the herd and the preferences of the farmer.
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Jovic, Slavoljub, Vitomir Cupic, Gordana Ristic, et al. "The influence of the induction of farrowing on live birth, body mass, appearance of dystocia, mortality and surviving of neonatal pigs in litter during the first ten days." Veterinarski glasnik 70, no. 1-2 (2016): 13–29. http://dx.doi.org/10.2298/vetgl1602013j.
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The objective of this work was to investigate the influence of the the day of farrowing induction on the number of newborn piglets (live born and dead born), body mass and mortality of neonatal pigs in litter by the tenth day of age. For the investigation purpose, there were chosen 167 pregnant animals, 34 gilts and 133 sows, divided into 3 groups each, according to the day of pregnancy when prostaglandin analogue, dinoprost-tromethamine, was applied (from 112th to 114th day). Fastest- induced parturition was in gilts which were administered dinoprost on the 113th day of pregnancy, (34,30 ? 6,23) h after application, that is, in sows which were administered prostaglandin on the 114th day of pregnancy, (29,57 ? 4,14) h after application of dinoprost. Most gilts (75 %) and sows (90,91%) started farrowing 24-36 h after dinoprost application, when it was given on the 113th day of pregnancy. During daily twelve-hour working time (7-19 h), 67,07% out of all the treated animals started farrowing. When farrowing was induced on the 112th day of pregnancy, 17 sows (12,78%) needed obstetric assistance for dystocia, while 47 (35,34 %) sows had troublesome farrowing. Along with the delayed induction, body mass of newborn pigs increased, and the largest recorded weight was 1,27 kg in sows, that is 1,38 kg in gilts, which were given dinoprost on the 114th day of pregnancy, with the lowest number of live born pigs of body mass less than 1 kg (23,76%). In this experiment there was determined the connection between the body mass and vitality of newborn piglets, so the lowest mortality rate of the pigs by the 10th day of age was noticed in sows and gilts which were given dinoprost on the 114th day of pregnancy (11,05%), in regard to the pigs born of sows and gilts which were given dinoprost on the 112th day of pregnancy (15,39 %).
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Otto, MA, AP Machado, LP Moreira, et al. "Colostrum yield and litter performance in multiparous sows subjected to farrowing induction." Reproduction in Domestic Animals 52, no. 5 (2017): 749–55. http://dx.doi.org/10.1111/rda.12975.
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Kirkden, R. D., D. M. Broom, and I. L. Andersen. "Piglet mortality: The impact of induction of farrowing using prostaglandins and oxytocin." Animal Reproduction Science 138, no. 1-2 (2013): 14–24. http://dx.doi.org/10.1016/j.anireprosci.2013.02.009.
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Dierking, Shannon, Talia Everding, Jodi Morton, Jeffrey A. Clapper, and Crystal L. Levesque. "288 Plasma Concentrations of Cortisol During the Periparturient Period in Gilts." Journal of Animal Science 99, Supplement_1 (2021): 112. http://dx.doi.org/10.1093/jas/skab054.184.
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Abstract An increase in plasma concentrations of cortisol is one signal that begins parturition and uterine contractions in pregnant sows; however, it is not known whether a critical level of cortisol is necessary or the role that it may play in the duration of parturition. The objective of the study was to characterize plasma concentrations of during the periparturient period and assess its relationship with initiation of parturition, litter size, and farrowing duration. Blood was collected via indwelling catheters from 5 primiparous gilts twice daily (0700 and 1900 h) from d113 of gestation until the birth of the first piglet, after which blood was collected every 15 minutes until farrowing was considered complete. Time of birth of each piglet was recorded. Farrowing duration was defined as the time between birth of the first and last piglets. Plasma concentrations of cortisol were determined by radioimmunoassay. Litter size was 12, 12, 18, 17, and 14 piglets and farrowing duration was 72 minutes, 4.1, 6.7, 5.8, and 4 hours, respectively. Quadratic and linear regressions were performed using the RStats package in RStudio (version 1.2.5025). Serum concentrations of cortisol were 3.37 ± 1.55 and 5.73 ± 2.18 ng/mL prior to parturition and at the birth of the first piglet, respectively. There was a positive quadratic relationship (P ≤ 0.07) between time of birth of each piglet and plasma cortisol levels; peak cortisol was 14.45 ± 3.20 ng/mL. There was a positive correlation between initial cortisol level and average piglet birth weight (P = 0.0124) but no relationship with total litter weight (P > 0.05). Determination of the periparturient changes in cortisol may be useful in designing farrowing induction protocols.
Dissertations / Theses on the topic "Farrowing induction"
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Otto, Mateus Anderson. "Produção de colostro e desempenho da leitegada em fêmeas suínas multíparas submetidas à indução em parto." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/94758.
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A baixa ingestão de colostro compromete a sobrevivência e o desempenho dos leitões. O objetivo do estudo foi avaliar a produção de colostro de matrizes submetidas à indução ao parto aos 114 dias de idade gestacional e sua influência na taxa de sobrevivência na maternidade e desempenho dos leitões. A produção de colostro foi estimada em 96 matrizes de ordem de parto 3 a 7, divididas em dois grupos: Controle (n=48) composto por fêmeas com parto espontâneo e Induzido (n=48) composto por fêmeas induzidas ao parto aos 114 dias de gestação com análogo da PGF2α. Todos os leitões foram pesados ao nascer e 24 horas depois para estimar a produção de colostro através do ganho de peso individual. Amostras de sangue foram coletadas dos leitões no primeiro dia após o nascimento. Foram coletadas amostras de colostro e sangue de cada fêmea no momento do parto e 24 horas depois. Para avaliar o desempenho dos leitões durante a lactação foram acompanhadas 28 leitegadas de cada grupo contendo 12 leitões cada durante 20 dias após o nascimento. Durante o período lactacional todas as leitegadas foram pesadas nos dia 07, 14 e 20 após o nascimento. A duração da gestação do grupo Controle foi em torno de 12 horas mais longa do que no grupo Induzido (P=0,06). A indução ao parto não afetou (P>0,10) a duração do parto, o número total de leitões nascidos, o número de leitões nascidos vivos, o percentual de natimortos, o peso médio dos leitões, o peso médio da leitegada ao nascimento e a produção de colostro em relação ao grupo controle. Não houve diferença entre os grupos (P>0,05) no percentual de fêmeas com intervenção obstétrica. As concentrações de IgG no soro das fêmeas, dos leitões e do colostro foram similares (P>0,10) entre os dois grupos. Para acompanhar o desempenho dos leitões durante a lactação foram uniformizadas leitegadas com peso inicial e consumo de colostro semelhante (P>0,10) em fêmeas adotivas com semelhante produção de colostro (P>0,10). Não foram observadas diferenças (P>0,10) no peso médio dos leitões e das leitegadas nos dias 07, 14 e 20, bem como não houve diferença (P>0,10) na sobrevivência dos animais no mesmo período. A indução ao parto aos 114 dias de gestação não prejudica a produção de colostro e não altera a quantidade de imunoglobulinas G tanto no colostro quanto no soro dos leitões. O desempenho na fase de lactação de leitegadas de fêmeas induzidas ao parto foi semelhante ao de leitegadas de fêmeas com parto espontâneo.<br>Low colostrum intake influences piglet survival and performance. The aim of this study was to evaluate colostrum production by sows submitted to farrowing induction and its influence on pre-weaning survival rate and piglet performance. A total of 96 sows of parities three to seven were assigned into two groups: Control (n = 48) composed of sows with spontaneous labor and Induced (n = 48) composed of sows induced on day 114 with PGF2α analogue. Colostrum production was estimated by piglet individual weight gain in the first day of life, which was measured by weighing piglets at birth and 24 hours later. Blood samples were collected from piglets on the first day after birth. Colostrum and blood samples were collected from each sow at farrowing and 24 hours later. To evaluate piglet performance during lactation 28 litters from each group containing 12 piglets each were followed for 20 days after birth. During lactation period, all piglets were weighed on days 07, 14 and 20 after birth. Gestation length of control group was about 12 hours longer than induced group (P = 0.06). Farrowing duration, total born, born alive, stillborn rate, average piglet weight, average litter weight at birth and colostrum production were not significantly affected (P > 0.10) by induction of farrowing compared to control group. There was no difference (P > 0.05) in the percentage of sows with obstetric intervention between groups. IgG concentration in sow and piglet serum and colostrum were similar (P > 0.10) between groups. To monitor piglet performance during lactation litters with similar initial weight and colostrum intake (P > 0.10) were cross-fostered in sows with similar colostrum production (P > 0.10). No differences (P > 0.10) were observed in the average piglet and litter weight on days 07, 14 and 20, and on survival rate in the same period. Induction of labor at 114 days of gestation doesn’t affect colostrum production nor influence colostrum and piglet serum immunoglobulin G level. Litter performance during lactation was similar in sows with induced parturition and spontaneous labor.