Semen Viability Properties of Sexually Stimulated Boars on the Fertilization Capacity of Artificially Inseminated Large White Sows

2021 ◽  
Author(s):  
Tshepo Teele
Keyword(s):  
Litter Size ◽  
Artificial Insemination ◽  
Practical Method ◽  
Return Rate ◽  
Practical Significance ◽  
Large White ◽  
Sexual Stimulation ◽  
Semen Collection ◽  
Fertilization Capacity ◽  
Farrowing Rate

Background: This study aimed to investigate the influences of sexual preparation on the effects of boars’ semen viability on the fertilization capacity of artificially inseminated sows. After all, boar sires more pigs than farrowed by a sow which the boar has been mated to improve reproductive parameters in response to AI. Methods: The semen viability of boars were studied during various sexual stimulations and analyzed during the study period. Sperm rich fractions were collected and separated at every level of sexual stimulation during the morning (08:30) and the afternoon (14:30) hours, respectively. Artificial insemination was performed following three levels of sexual preparations of boars (0 minutes of sexual restraint (MSR), 5 MSR and 10 MSR) before semen collection. Receptive sows were inseminated and evaluated for fertility traits using non-return rate, farrowing rate and litter size. Result: The non-return rate was recorded as a percentage of sows conceived after insemination over the total number of sows inseminated. The farrowing rate was recorded as a percentage of sows that farrows over the number of sows conceived and litter size as several live piglets per sow. Sexual desire was influenced by sexual preparations and significantly influenced the fertility of the artificially inseminated sows. This study is of practical significance to the animal breeder mainly because boars have greater influence than sows on the average litter size and live piglets. The study concludes that the use of at least 5 to 10 minutes of sexual restraint during the afternoon periods prior to semen collection and artificial insemination is found to be a practical method for optimizing sperm viability and fertility of sows in the intensive system.

scholarly journals Artificial insemination in sows using Guelph and two local semen extenders

2021 ◽  
Vol 29 (1) ◽  
pp. 121-126
Author(s):  
D. O. Umesiobi ◽  
M. U. lloeje ◽  
N. A. Berepubo
Keyword(s):  
Litter Size ◽  
Sperm Motility ◽  
Artificial Insemination ◽  
Coconut Water ◽  
Large White ◽  
Semen Characteristics ◽  
Boar Semen ◽  
And Storage ◽  
Farrowing Rate ◽  
Fresh Semen

Sixty two and half-year-old Large White sows and 12 boars of the same breed and age were used to study the comparative effects of conventional (Guelph) and local (coconut water and fresh raphia palm wine) extenders and storage (3 days) on the fertility of artificially inseminated sows. Semen was collected twice a week by gloved-hand method. Semen was either extended or unextended and evaluated on the day of collection (day 0) and during day 3 of storage for percentage sperm motility, acrosome morphology and fertility (Non-return rate, farrowing rate and litter size). Both Guelph and local extenders produced significant effects (P<0.01) on boar semen characteristics and fertility. Fresh semen extended in Guelph entender had the highest percentage sperm motility (86.2%) whereas fresh semen extended with coconut water gave the highest normal apical ridge (NAR) (91%); farrowing rate (88.3%). Litter size (7.1 piglets/litter alive (5.8), with the highest number of non return to service sows. Guelph extended semen ranked second in influencing fertility in sows.

scholarly journals Sperm concentration on the intrauterine artificial insemination in swine

2009 ◽  
Vol 33 (6) ◽  
pp. 1671-1674
Author(s):  
Joana Miller ◽  
Ana Luísa Neves Alvarenga ◽  
Luis David Solis Murgas ◽  
Adriana Cristina da Silva ◽  
Ricardo Sales Araújo ◽  
...  
Keyword(s):  
Litter Size ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Intrauterine Insemination ◽  
Sperm Concentration ◽  
Conception Rate ◽  
Cervical Canal ◽  
Significant Difference ◽  
Estrus Detection ◽  
Farrowing Rate

The aim of this work was to evaluate the efficiency of the intrauterine insemination (IUI) in swine, considering the conception rate, farrowing rate, litter size (alive born pigs). For the IUI, the females had been insemination at 24 and 48 hours after the estrus detection, and the inseminating doses of 500 million, 1 billion, 1.5 billion and 2 billion spermatozoa in 20 mL extender had been used. The procedure of catheter insertion through the cervical canal was successfully performed in 97.9% of the females. The conception rate was 6.3% in the IUI. The farrowing rate in IUI was 87.2% but the farrowing rate was 100% for the sperm concentration of 500 million. Regarding the number of born pigs and alive born pigs observed in females inseminated with IUI, no significant difference was observed (p > 0.05). The concentration of 500 x 10(6) spermatozoa in 20 mL extender in the intrauterine insemination resulted in an optimal reproductive performance.

Artificial insemination technology for ratites: a review

2008 ◽  
Vol 48 (10) ◽  
pp. 1284 ◽  
Author(s):  
I. A. Malecki ◽  
P. K. Rybnik ◽  
G. B. Martin
Keyword(s):  
Artificial Insemination ◽  
Genetic Improvement ◽  
Quantitative Methods ◽  
Practical Method ◽  
Prolonged Storage ◽  
Female Ratio ◽  
Semen Collection ◽  
Semen Storage

In ratite farming, the low male to female ratio in the mating system restricts genetic improvement and prevents reduction of the number of males kept on-farm for fertilisation of the female flock. These issues can be overcome and the industry can better realise its potential by using artificial insemination (AI) technology. It is the only practical method for intensive genetic improvement of reproduction and the production of eggs, chicks, oil, meat and leather. For AI to be feasible, we need reliable methods for semen collection, artificial insemination, prolonged storage of spermatozoa in the female tract, high rates of lay, efficient protocols for semen storage, and a panel of quantitative methods for measuring true fertility and hatchability, sperm supply rates in vivo and sperm viability in vitro. For both emus and ostriches, prolonged sperm storage in females has already been demonstrated. Methods for semen collection and artificial insemination, using animal-friendly techniques, have also been developed. Semen storage and cryopreservation protocols are yet to be optimised and we still need to overcome the male-dependent rate of lay, but adoption of AI technology by the ratite industries is now feasible. It also seems likely that these technologies will be relevant to wild ratites that need intensive conservation efforts, such as cassowaries, rheas and ostrich subspecies.

scholarly journals Fertility of boars - what is important to know

2017 ◽  
Vol 33 (2) ◽  
pp. 135-149 ◽  
Author(s):  
Radomir Savic ◽  
Raquel Marcos ◽  
Milica Petrovic ◽  
Dragan Radojkovic ◽  
Cedomir Radovic ◽  
...  
Keyword(s):  
Litter Size ◽  
Return Rate ◽  
Low Fertility ◽  
Reproductive Efficiency ◽  
Reproductive Management ◽  
Fertility Traits ◽  
Farrowing Rate ◽  
Sperm Traits

The most important part in reproductive management is the control of boar fertility. A common division of fertility traits is on the: in vitro (sperm traits) and in vivo (return rate, farrowing rate and litter size traits) fertility. In many studies were found differences between breed in the both groups of fertility traits. Variability of sperm traits of boars during the reproductive exploitation is influenced by various genetic (boar, breed) and paragenetic factors/effects (age, season, intensity of use). Good libido is desirable characteristics in boars, but the knowlegde of the correlation of libido and boar fertility traits are limited. Also, there is no standardised procedure or methods for the estimation of libido of the boars. The permanent ranking of boars according to the reproductive efficiency should be performing. Good reproductive management implies the timely identification of boars with the low fertility (or close to the average).

scholarly journals Reproductive performance of sows submitted to intrauterine insemination

2009 ◽  
Vol 38 (8) ◽  
pp. 1460-1467 ◽  
Author(s):  
Éder Batalha Araújo ◽  
Eduardo Paulino da Costa ◽  
Aurea Helena Assis da Costa ◽  
Flávio Guiselli Lopes ◽  
Gustavo Guerino Macedo ◽  
...  
Keyword(s):  
Litter Size ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Intrauterine Insemination ◽  
Block Design ◽  
Randomized Complete Block Design ◽  
Farrowing Rate

The objective of this study was to evaluate the reproductive performance of sows artificially inseminated by the intrauterine (IAIU) technique. The experiment was arranged in a randomized complete block design, with 300 sows being distributed in five insemination techniques: control, intra-cervical (IAIC) with 3x10(9) spermatozoa/100 mL; intrauterine (IAIU) with 1x10(9) spermatozoa/100 mL; intrauterine with com 1x10(9) spermatozoa/50 mL; intrauterine with 5x10(8) spermatozoa/100 mL; and intrauterine com 5x10(8) spermatozoa/50 mL. The sows submitted to intrauterine insemination presented a farrowing rate of 90.8% and return to estrus rate of 9.2%, which did not differ from the rates obtained by the intra-cervical technique (90.0% and 10.0%, respectively). Total litter size did not differ between the techniques, with the means being from 11.4 to 11.9 piglets at farrowing. Although 4.6% of the sows submitted to intrauterine artificial insemination had difficulty with pipette insertion into the cervix, 100% of them were inseminated. When evaluating semen backflow, no difference was found between the intra-cervical and intrauterine insemination techniques. However, total semen backflow was higher in sows submitted to inter-cervical insemination. No difference was found in the presence of blood between the two methods evaluated. Hence, any of the intrauterine insemination techniques can substitute inter-cervical artificial insemination without damaging the reproductive performance of the animals.

scholarly journals The impact of oestrus synchronization by hormone medication and varying numbers of artificial insemination sessions, determined by sow reproductive indices

2021 ◽  
Vol 52 (5) ◽  
Author(s):  
Jani Mavromati ◽  
Luigj Turmalaj
Keyword(s):  
Uniform Distribution ◽  
Litter Size ◽  
Artificial Insemination ◽  
Average Litter Size ◽  
Pig Farm ◽  
Synchronization Scheme ◽  
The Impact ◽  
Farrowing Rate ◽  
Reproductive Indices

This study was conducted on a central Albanian pig farm with a capacity of 80 sows. A uniform distribution of piglets born and the number of reared piglets sold every week and month was the target. To achieve this goal, a hormone-based synchronization scheme was used, combined with the use of one, two, or three artificial insemination sessions during the same oestrus. The main reproduction indices of sows were monitored, and the results indicated that the farrowing rate after the first insemination was 78.57%, 83.64% and 83.33% for the three groups in which one, two and three artificial insemination sessions were used during the same oestrus, obtained by inoculation with the hormone Sergon PG 400/200 IU. Average litter size (the number of live born piglets) per farrowing sow was 10.22 ± 0.33, 10.8 ± 0.2 and 10.6 ± 0.3 in the three groups, respectively. The fecundity index (FI) was 803, 905.8 and 883.3 in the three experimental groups of sows, respectively. A total of 1436 piglets from 136 farrowing sows were sold during 2018, achieving uniform sales of over 100 pigs per month with a weight over 90 kg. Therefore, it can be concluded that oestrus synchronization of sows with the Sergon PG 400/200 hormone can achieve a uniform distribution of piglets born and consequently a uniform distribution of piglets sales per week or month, regardless of the fact that this should be achieved at a larger scale. The best result as seen in the reproductive indicators was achieved by the use of artificial insemination with two sperm inoculations at a 12-hour interval during the same oestrus, synchronized by the Sergon PG 400/200 hormone.

scholarly journals Photo Stimulation of Seminal Doses with Red LED Light from Duroc Boars and Resultant Fertility in Iberian Sows

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1656
Author(s):  
Sara Crespo ◽  
Mateo Martínez ◽  
Joaquín Gadea
Keyword(s):  
Litter Size ◽  
Artificial Insemination ◽  
Red Light ◽  
Led Light ◽  
Red Led ◽  
Commercial Farms ◽  
Farrowing Rate ◽  
Duration Of Pregnancy ◽  
Production Conditions ◽  
Stimulation Of

In pigs, it has been reported that increased farrowing rates and litter size have been induced by photostimulating the seminal doses for artificial insemination with red LED light. As the reproductive characteristics, production system, and outcome parameters of Iberian breed pigs are different from other commercial breeds, the aim of this study was to evaluate the possible effect of illuminating seminal doses from Duroc boars with red LED light and the fertility outcomes of Iberian females. Semen samples were obtained from 38 fertile Duroc boars. Photostimulation of the artificial insemination (AI) seminal doses was carried out by illuminating the samples with a red LED for 10 min, followed by 10 min of darkness, and finally 10 additional minutes of red light. The fertility study was conducted on two commercial farms using multiparous Iberian sows (farm A, n = 824; farm B, n = 2131), that were randomly assigned to LED (L) or control (C) groups. No differences were found between L and C groups in both farms (p > 0.05) for parity, pregnancy rate, duration of pregnancy, farrowing rate, and litter size (total, alive, and stillborn piglets). Farrowing rates in farm A were 88.8% (n = 383) for control and 89.6% (n = 441, p = 0.67) for the LED group. In farm B, farrowing rates were C:90.5% (n = 1030) and L: 90.1% (n = 1101, p = 0.48). In farm A, total born piglets were 8.69 ± 0.11 for C and 8.71 ± 0.11 for L (p = 0.87). In farm B, the results were 8.72 ± 0.7 for C and 8.70 ± 0.06 (p = 0.82) for L. Under the production conditions for the Iberian breed, the photostimulation with red LED light using Duroc pig seminal doses was not effective in improving the fertility of Iberian sows.

scholarly journals Measurement of Oxidative Stress Index in Seminal Plasma Can Predict In Vivo Fertility of Liquid-Stored Porcine Artificial Insemination Semen Doses

Antioxidants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1203
Author(s):  
Isabel Barranco ◽  
Camila P. Rubio ◽  
Asta Tvarijonaviciute ◽  
Heriberto Rodriguez-Martinez ◽  
Jordi Roca
Keyword(s):  
Oxidative Stress ◽  
Litter Size ◽  
Sperm Motility ◽  
Seminal Plasma ◽  
Artificial Insemination ◽  
Stress Index ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Oxidative Stress Index ◽  
Farrowing Rate

The study evaluated the relation between the oxidative stress index (OSI) in porcine seminal plasma (n = 76) with sperm resilience and in vivo fertility (farrowing rate and litter size of 3137 inseminated sows) of liquid-stored artificial insemination (AI) semen doses. The OSI was assessed as the ratio of advanced oxidation protein products to Trolox-equivalent antioxidant capacity, both measured using an automated analyzer. Sperm motility (computer-assisted sperm analyzer) and viability (flow cytometry) were evaluated in semen AI-doses at 0 and 72 h of storage at 17 °C. Sperm resilience was defined as the difference between storage intervals. Semen AI-doses were hierarchically clustered as having high, medium and low seminal OSI (p < 0.001) with those of low displaying higher resilience (p < 0.01). Boars were hierarchically clustered into two groups (p < 0.001) as having either positive or negative farrowing rate and litter size deviation; the negative one showing higher seminal OSI (p < 0.05). In sum, seminal OSI was negatively related to sperm motility and the in vivo fertility of liquid-stored boar semen AI-doses, with the receiver operating characteristic curve presenting seminal OSI as a good predictive biomarker of in vivo fertility of AI-boars (area under the curve: 0.815, p < 0.05).

Embryo survival, but not first-parity litter size, is increased when gilts are fed diets supplemented with omega-3 fatty acids from fish oil

2013 ◽  
Vol 53 (1) ◽  
pp. 57 ◽  
Author(s):  
R. J. Smits ◽  
B. G. Luxford ◽  
M. Mitchell ◽  
M. B. Nottle
Keyword(s):  
Fish Oil ◽  
Litter Size ◽  
Reproductive Performance ◽  
Partial Replacement ◽  
Omega 3 ◽  
Large White ◽  
Embryo Survival ◽  
Early Gestation ◽  
Ad Libitum ◽  
Farrowing Rate

The response in reproductive performance when pigs are fed diets supplemented with fats high in polyunsaturated fatty acids (PUFA) has not been widely studied. Improved fertility has been reported in sows and other species fed diets with added fish oil, a rich source of omega-3 PUFA, but results are inconsistent. The aim of the present study was to determine the effect of the duration and the level of supplementation of omega-3 PUFA from fish oil on the reproductive performance of gilts. In Experiment 1, 570 Large White and Landrace purebred gilts were fed ad libitum either an unsupplemented diet containing tallow (Control) or a diet containing 3 g fish oil/kg (Omega-3) as a partial replacement for tallow from 24 weeks (Omega-3 for 6 weeks) or 27 weeks of age (Omega-3 for 3 weeks) before mating. Liveweight and backfat gain between 24 weeks of age and mating were recorded. Gilts were then fed an unsupplemented diet during gestation and farrowing rate and first litter size were recorded. In Experiment 2, 356 Large White × Landrace F1 cross gilts were fed ad libitum diets containing either 0, 3 or 10 g fish oil/kg of diet as a partial replacement of tallow from 24 weeks of age and continued after mating at 2.2 kg/day until slaughter at 25 days of gestation. Pregnancy rate, ovulation and embryo survival were recorded. Data were analysed by general linear model ANOVA and Chi-square methods. In Experiment 1, there was no increase in farrowing rate or litter size born in gilts fed the omega-3-supplemented diet for either 3 or 6 weeks before mating compared with Control gilts. In Experiment 2, supplementation with omega-3 PUFA from 24 weeks of age through to mating and continued during early gestation did not increase ovulation rate but there was a trend (P < 0.10) for an increase in embryo survival measured at Day 25 of gestation in gilts fed diets containing fish oil. Embryo survival was higher in gilts fed diets containing 3 g fish oil/kg of diet than in those fed the Control diet (P < 0.05). Increasing the supplementation level to 10 g fish oil/kg did not increase embryo survival further. In both experiments, supplementation of omega-3 as fish oil did not affect the onset of oestrous, gilt removal and weight and backfat gain. In conclusion, supplementation of omega-3 PUFA before mating did not improve farrowing rate or litter size in gilts. It may be necessary to continue feeding diets with low concentrations of fish oil during early gestation to maximise the reproductive response to elevated omega-3 PUFA.

scholarly journals Influence of transcervical infusion of seminal plasma on the farrowing rate and litter size in artificially inseminated sows

2020 ◽  
Vol 72 (5) ◽  
pp. 1691-1697
Author(s):  
I. Stančić ◽  
I. Radović ◽  
S. Dragin ◽  
M. Mirkov ◽  
I. Pihler ◽  
...  
Keyword(s):  
Litter Size ◽  
Seminal Plasma ◽  
Artificial Insemination ◽  
Physiological Solution ◽  
Fertility Rate ◽  
Pig Production ◽  
Plasma Infusion ◽  
Breeding Herd ◽  
Pig Farm ◽  
Farrowing Rate

ABSTRACT Recent studies have focused on the use of seminal plasma to increase sow fertility after classical intracervical artificial insemination (AI). The aim of the present study was to investigate the influence of seminal plasma infusion, prior to the application of conventional AI dose, on the fertility rate in sows. A total of 114 sows were treated with intrauterine infusion of 30ml seminal plasma (SP), while 114 control sows were infused by physiological solution (PS), immediately before the application of conventional AI dose. The experiment was conducted at one commercial pig farm in Serbia, which is comprised of 1,500 sows in the breeding herd. Intrauterine infusion of seminal plasma produced significantly (P<0.05) higher farrowing rate (93.8%) and significantly (P<0.01) more live-born piglets per litter (12.27), compared with the control sows (83.33% farrowing rate and 10.48 piglets). The present results show that intrauterine infusion of seminal plasma can be a useful tool for increasing the fertility rate in artificially inseminated sows, under the conditions of practical intensive pig production.

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