Effect of different parities on reproductive performance, birth
                    intervals, and tail behavior in sows

Yang, Ka Young; Jeon, Jung-Hwan; Kwon, Kyeong Seok; Choi, Hye-Sun; Kim, Jong-Bok; Lee, Jun Yeob

doi:10.5187/jast.2019.61.3.147

Cited by 10 publications

(11 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, van Dijk et al [ 28 ] demonstrated that parity number did not affect the duration of the expulsive stage. Additionally, Yang et al [ 29 ] found a shorter farrowing duration in sows with higher parity numbers (6–9) compared to sows with lower parity numbers (i.e., 1 and 2–5). However, in their study, sows with parity numbers 6–9 had a smaller total number of piglets born per litter (12.4 ± 3.2) than sows with parity numbers 2–5 and 1 (15.5 ± 3.1 and 16.8 ± 1.8) [ 29 ].…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, Yang et al [ 29 ] found a shorter farrowing duration in sows with higher parity numbers (6–9) compared to sows with lower parity numbers (i.e., 1 and 2–5). However, in their study, sows with parity numbers 6–9 had a smaller total number of piglets born per litter (12.4 ± 3.2) than sows with parity numbers 2–5 and 1 (15.5 ± 3.1 and 16.8 ± 1.8) [ 29 ]. Litter size is positively correlated with farrowing duration, and thus, in sows with large litters, farrowing may last longer.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

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

Adi

Boonprakob

Kirkwood

et al. 2022

Animals

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…The age and weight at first mating are considered as critical factors for a greater litter size in gilts lifetime production [1,2]. Decades of selection for improved litter size, changes the physiological response of gilts to management or environmental factors [3]. There is a large variation in herd gilts replacement, as almost half the sows are culled every year and their lifetime litter size is only between 30 and 40 piglets [4].…”

Section: Introductionmentioning

confidence: 99%

Age and weight at first mating affects plasma leptin concentration but no effects on reproductive performance of gilts

Lee¹,

Hosseindoust

Choi

et al. 2019

J Anim Sci Technol

View full text Add to dashboard Cite

The objective of this study was to verify the best mating age of gilts at the first parity. Gilts (n = 86) were divided into nine groups in a factorial arrangement with three Ages (AG1, ≤ 220 d; AG2, 220 to 240 d; AG3, 240 ≤ d), and three weights (WT1 ≤ 140 kg; WT2, 140 to 149 kg; WT3, 150 ≤ kg). A higher body weight gain in AG2 sows during gestation. Sows in AG2 group showed a higher body weight gain at first parity and backfat gain in the parity 2 and 3 during gestation. A greater insulin–like growth factor-1 (IGF-1) was observed in AG1 sows compared with AG3 sows at weaning in the second parity. Sows in WT1 group showed a significant positive effect on the plasma IGF-1 at breeding and weaning time in parity 2. Sows in AG3 group showed a higher plasma leptin at breeding, farrowing, and weaning in the parity 1, and at farrowing in parity 2. Sows in WT3 group showed a higher plasma leptin at breeding, farrowing, and weaning in the parities 1 and 2. Considering the insignificant longevity results, the most efficient time for gilts insemination can be at 220 d when their body weight is 140 kg or lower.

show abstract

“…Among the main factors that influence sow fertility are weather [72], housing conditions [73], nutritional status [72], duration of gestation [74], endocrine activity [72], and sow lifetime productivity [75]. In the present study, four maternal crosses were considered because maternal ability can influence phenotypic performance in species with numerous litters, such as pigs [76][77][78]. In the case of boars, two racial groups were used because of the selection objective in terminal crossings [79][80][81].…”

Section: Discussionmentioning

confidence: 99%

Relationship between Fertility Traits and Kinematics in Clusters of Boar Ejaculates

Barquero

Roldán

Soler

et al. 2021

Biology

View full text Add to dashboard Cite

The aim was to determine the relationship between kinematic parameters of boar spermatozoa and fertility rates of sow, as well as to assess the effect of sperm clusters on the fertility capacity of the ejaculate. Semen samples were collected from 11 sexually mature boars. Samples were analyzed by an ISAS®v1 CASA-Mot system for eight kinematic parameters. Ejaculate clusters were characterized using multivariate procedures, such as principal factors (PFs) analysis and clustering methods (the k-means model). Four different ejaculate clusters were identified from two kinematic PFs which involved linear trajectory and velocity. There were differences (p < 0.05) between the sperm kinematic variables by sire line. There was no statistical difference (p > 0.05) between dam lines and ejaculate clusters in fertility variables. The discriminant ability of the different kinematics of sperm variables to predict litter size fertility was analyzed using receiver operating characteristics (ROC) curve analysis. Curvilinear velocity (VCL), average path velocity (VAP), amplitude of lateral head displacement (ALH), and beat-cross frequency (BCF) showed significant, albeit limited, predictive capacity for litter size fertility variables (range: 0.55–0.58 area under curve, AUC). The kinematic analysis of the ejaculates in clusters did not have a predictive capacity for litter size variables.

show abstract

Effect of different parities on reproductive performance, birth intervals, and tail behavior in sows

Cited by 10 publications

References 28 publications

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

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

Age and weight at first mating affects plasma leptin concentration but no effects on reproductive performance of gilts

Relationship between Fertility Traits and Kinematics in Clusters of Boar Ejaculates

Contact Info

Product

Resources

About