Control of parturition in hyperprolific sows by using altrenogest and double administrations of PGF2α

Taechamaeteekul, Preechaphon; Dumniem, Natchanon; Sang-Gassanee, Kridtasak; Tummaruk, Padet

doi:10.1016/j.theriogenology.2022.01.006

Cited by 6 publications

(14 citation statements)

References 32 publications

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“…Previous studies [37,38] found that stillbirth rates increased when farrowing induction was performed on day 111 of gestation, which is also associated with reduced birth weight and an increased rate of premature births. An increased stillbirth rate was reported with farrowing induction on days 113-115; however, it appeared to be due to altrenogest supplementation approximately 7 days before induction rather than from induction itself [39]. Our present results corroborate the findings of many previous studies that found no effect of farrowing induction on the stillbirth rate [3, 6, 9, 16-18, 32, 33, 40, 41].…”

Section: Discussionsupporting

confidence: 88%

Effects of farrowing induction using cloprostenol on sow farrowing characteristics

2022

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Background and Aim: Previous findings regarding the effects of farrowing induction on the farrowing characteristics of sows are controversial. This study aimed to investigate the effects of farrowing induction on the following characteristics: (1) Proportion of sows that farrowed during working hours, (2) stillbirth rate, (3) number of stillbirths per farrow, (4) dystocia rate per farrow, (5) dystocia rate (the proportion of farrowings that had at least one dystocia event), (6) number of dystocia events per farrow, (6) farrowing duration, (7) birth interval, and (8) birth weight. Materials and Methods: Thirty-eight Landrace x Yorkshire sows were randomly allocated into two groups; the control group and the treatment group. In the control group (n = 18), sows farrowed spontaneously. In the treatment group (n = 20), farrowing was induced approximately 2 days earlier than the herd's average length of gestation (7:00 am on day 114) by injecting cloprostenol into the perivulval region. All sows were supervised throughout their farrowing. We recorded the interval between induction and farrowing; total number of births; number of live, stillborn, and mummified piglet births; number of dystocia events; birth interval; farrowing duration; and birth weight. A generalized linear mixed model, a linear mixed-effects model, the Chi-squared test, and Student's t-test were used to compare outcomes between the two groups. Results: Farrowing induction did not influence the percentage of sows that farrowed during working hours (7 am–5 pm), stillbirth rate, birth weight, and number of dystocia events per farrow. Farrowing induction led to an increase in birth interval, dystocia rate, dystocia per farrow (p < 0.05) and in addition to the percentage of sows that farrowed on the day following induction (60% vs. 27.8%; p < 0.05). Conclusion: Farrowing induction using a single dose of cloprostenol 2 days before the expected farrowing date can be performed with care to concentrate farrowing into a short interval. This can enhance the optimization of cross-fostering and the practice of an all-in-all-out strategy in the swine breeding industry.

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Section: Discussionsupporting

confidence: 88%

Effects of farrowing induction using cloprostenol on sow farrowing characteristics

2022

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“…However, farrowing during working hours is preferable due to the ease of monitoring, and staff can assist immediately if dystocia occurs. In a previous study, the administration of exogenous hormones to control the onset of farrowing was investigated [ 35 , 36 ]. The authors demonstrated that altrenogest supplementation in combination with double administrations of PGF2ɑ successfully synchronised the onset of farrowing in sows, with the proportion of sows that started farrowing during working hours tending to be higher in the treatment group than in the control group.…”

Section: Discussionmentioning

confidence: 99%

“…The authors demonstrated that altrenogest supplementation in combination with double administrations of PGF2ɑ successfully synchronised the onset of farrowing in sows, with the proportion of sows that started farrowing during working hours tending to be higher in the treatment group than in the control group. However, the use of pharmacology to control parturition in sows needs to be carefully considered due to its side effects, e.g., reduced colostrum intake and high stillbirth rates [ 35 ].…”

Section: Discussionmentioning

confidence: 99%

Factors Associated with Farrowing Duration in Hyperprolific Sows in a Free Farrowing System under Tropical Conditions

Adi

Boonprakob

Kirkwood

et al. 2022

Animals

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The ongoing selection for increased litter size has had significant impacts on sow husbandry practice. The present study investigated factors associated with farrowing duration and the proportion of sows that had prolonged farrowing in modern hyperprolific sows kept in a free farrowing system in a tropical environment. Farrowing data from 2493 Landrace x Yorkshire cross-bred sows in a commercial swine herd in Thailand were included in the study. The time of farrowing, parity number, litter size, and the birth status of each piglet were recorded. Farrowing duration was analysed using multiple analyses of variance. Total number of piglets born per litter (TB), parity, and time onset of farrowing were included in the statistical models. On average, TB, piglets born alive, and farrowing duration were 13.7, 12.1, and 221.0 min, respectively. Of these sows, 26.4% had TB ≥ 16 and 21.7% had a prolonged farrowing duration (≥300 min). Farrowing duration was positively correlated with TB (r = 0.141, p < 0.001), percentage of stillborn (SB) piglets per litter (r = 0.259, p < 0.001), percentage of mummified foetuses (MF) per litter (r = 0.049, p = 0.015), piglet birth weight (r = 0.068, p < 0.001), and litter birth weight (r = 0.041, p = 0.043). The proportion of SB per litter was higher and piglet birth weight lower in litters that had ≥16 TB than those with 8–12 TB (p < 0.05). The farrowing duration of sows with parity numbers 5–7 (247.7 ± 5.1 min) and 8–10 (237.1 ± 5.1 min) was longer than that of sows with parity numbers 1 (188.3 ± 5.2 min) and 2–4 (214.3 ± 3.9 min) (p < 0.05). Sows that had started farrowing during working hours had longer farrowing durations (229.3 ± 3.6 min) than those that had started farrowing during non-working hours (217.6 ± 3.4 min, p = 0.017). In multiparous sows, the duration of farrowing was positively correlated with the maximum temperature (r = 0.056, p = 0.012) and the maximum temperature–humidity index (r = 0.059, p = 0.008) in the 7 days before farrowing. The present data confirm that TB, sow parity, and time of onset of farrowing are significant risk factors for a prolonged farrowing.

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“…This is probably because declined colostrum production leads to low colostrum consumption and received low immunity. However, the previous studies demonstrated that farrowing induction did not affect colostrum production [25,[63][64][65] because colostrum is mostly produced before parturition at 85 days of gestation. On the other hand, recent research by Maneethong et al [66] and Nuntapaitoon et al [67] shows that natural prostaglandin F2α increased colostrum and milk production in the first week of lactation.…”

Section: Technique For Increasing Colostrum and Milk Yieldmentioning

confidence: 93%

“…However, Foisnet et al [63] found that IgA concentration in colostrum declined when farrowing was induced by prostaglandin F2α. Recently, Taechamaeteekul et al [65] illustrated that altrenogest in combination with double administrations of prostaglandin F2alpha did not affect colostral IgG. The benefits of prostaglandin F2α have not been clearly elucidated.…”

Section: Technique For Increasing Colostrum and Milk Qualitymentioning

confidence: 99%

Colostrum and Milk in Sow

Nuntapaitoon¹

2022

Milk Protein - New Research Approaches

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Both colostrum and milk quality and quantity can influence piglet survival and growth, especially in a highly prolific sow. The Danish Landrace × Yorkshire crossbred was selected for high prolificacy and challenged to provide enough colostrum and milk of high quality to all piglets. This chapter reviewed the mechanism of colostrum and milk production, basic information of colostrum, and milk quality (immunoglobulin, fat, protein, lactose, etc.) and quantity. The importance of colostrum and milk in modern sows on piglet performance and survival was addressed. Since the sow immunoglobulin cannot pass epitheliochorial placenta in the sow to the piglet’s bloodstream. Therefore, colostrum is a crucial role in piglet survival and growth. However, the amount of colostrum and milk production in hyperprolific sow still improve from high litter size. The knowledge about the factors influencing colostrum and milk quality and quantity, such as parity number, piglet, the environment in hyperprolific sows, may support veterinarians and farmers in the commercial swine farms for increasing pig production. Moreover, the technique to improve colostrum and milk quality and quantity were explained, such as feed supplementation in gestating and lactating sows.

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Control of parturition in hyperprolific sows by using altrenogest and double administrations of PGF2α

Cited by 6 publications

References 32 publications

Effects of farrowing induction using cloprostenol on sow farrowing characteristics

Effects of farrowing induction using cloprostenol on sow farrowing characteristics

Factors Associated with Farrowing Duration in Hyperprolific Sows in a Free Farrowing System under Tropical Conditions

Colostrum and Milk in Sow

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