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 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.

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 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.

scholarly journals A new parameter describing fertility in rabbits at the farm level: the kit index

2018 ◽  
Vol 61 (4) ◽  
pp. 463-467 ◽  
Author(s):  
Steffen Hoy
Keyword(s):  
Litter Size ◽  
Artificial Insemination ◽  
Distributed Parameter ◽  
Farm Level ◽  
Average Litter Size ◽  
Genetic Strains ◽  
The Given ◽  
Housing Units ◽  
Normally Distributed

Abstract. The kit index (KI) combines the kindling rate (KR) and the average litter size (LS) per group of does, per breeding round, per year, or per farm and represents the number of total or live-born kits per 100 inseminated does. The KR is the percentage of kindlings per number of inseminated does. Mathematically, the KI is the product of the KR multiplied by the average LS. The KI was calculated on the basis of 12 730 inseminated does and 89 864 live-born kits from one rabbit farm during a 25-month period from 2015 to 2017. The average KR was 70.1±9.1 % with a minimum (per breeding round) of 35.4 % and a maximum of 90.8 %. The average LS of total kits born was 9.16±0.91, whilst the average litter size of live-born kits was 8.87±0.90. The KI of total kits born was calculated to be 649± 121 kits per 100 inseminated does (min of 332, max of 971), while the KI of live-born kits ranged between 326 and 944 kits per 100 inseminated does (mean of 626±122). The KI is a normally distributed parameter with respect to both the total kits born and the live-born kits per 100 inseminated does. All three parameters (KR, LS, and KI) were characterized by large variations from week to week with a tendency toward a reduction in the summer months. No difference was found between the two housing units, but large differences were found between the two genetic strains used on the given farm. Therefore, it can be concluded that the KI is able to characterize the complex fertility situation on the given rabbit farm. The KI can be used to demonstrate and to solve problems regarding artificial insemination, in addition to general issues with insemination management.

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 Еffect of Season and Parity on the Reproductive Performance of Sows

2018 ◽  
Vol 41 (2) ◽  
pp. 163-168
Author(s):  
Stanimir Dimitrov ◽  
Vesna Karapetkovska-Hristova ◽  
Ljupce Kochoski ◽  
Biljana Trajkovska ◽  
Borche Makarijoski ◽  
...  
Keyword(s):  
Risk Factors ◽  
Breeding Season ◽  
Litter Size ◽  
Reproductive Performance ◽  
Factors Associated ◽  
Commercial Farm ◽  
Pig Farm ◽  
Weaning Piglets ◽  
Farrowing Rate ◽  
Positive Results

Abstract The aim of this study was to analyze the effect of season and number of parity on the reproductive performance of sows kept on a commercial farm. To achieve this objective, 800 nrs productive parent sows and a total of 958 parities were analyzed. The results show that sow’s breeding season had a significant effect on the weaning-to-oestrus interval, the farrowing rate, the litter size and weaning piglets with positive results during autumn, winter and spring seasons. The number of parity has a significant effect on the weaning-to-oestrus interval, litter size and weaning piglets with acceptable values in sows with more farrowing. The results of this study on a pig farm with analysis which highlights the risk factors associated with reproductive performance of sows, could be used to improve sow farm practices.

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).

scholarly journals Short-term storage of semen samples in acidic extender increases the proportion of females in pigs

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Yoo-Jin Park ◽  
Dong-Ha Shin ◽  
Won-Ki Pang ◽  
Do-Yeal Ryu ◽  
Md Saidur Rahman ◽  
...  
Keyword(s):  
Litter Size ◽  
Production Efficiency ◽  
Economic Benefits ◽  
Functional Parameters ◽  
Male Ratio ◽  
Average Litter Size ◽  
Significant Difference ◽  
General Preference ◽  
Semen Extender ◽  
Farrowing Rate

Abstract Background Sex preselection is a desired goal of the animal industry to improve production efficiency, depending on industry demand. In the porcine industry, there is a general preference for pork from female and surgically castrated male pigs. Therefore, the birth of more females than males in a litter leads to economic benefits and improved animal welfare in the pig production industry. Our previous study suggested that the porcine semen extender (BTS) adjusted to pH 6.2 maximises the differences in viability between X-chromosome-bearing (X) spermatozoa and Y-chromosome-bearing (Y) spermatozoa without affecting sperm’s functional parameters. In this study we aimed to evaluate whether the pH 6.2 extender is applicable at the farm level for increasing the number of female piglets without a decline in spermatozoa fertility. Artificial insemination (AI) was carried out with spermatozoa stored at pH 6.2 and pH 7.2 (original BTS) at day 1 and day 2 of storage. Next, the functional parameters of the spermatozoa, litter size, farrowing rate, and female-to-male ratio of offspring were determined. Results Although sperm motility decreased significantly after 2 d of storage, the viability of spermatozoa was preserved at pH 6.2 for 3 d. There was no significant difference in the farrowing rate and average litter size between the group inseminated with the spermatozoa stored in (pH 7.2) and that inseminated with spermatozoa stored in acidic BTS. The percentage of female piglets was approximately 1.5-fold higher in sows inseminated on day 1 in the pH 6.2 than in the pH 7.2 group. Furthermore, although there was no significant difference in the female-to-male ratio, the percentage of female piglets born was slightly higher in the pH 6.2 group than in the pH 7.2 group on day 2. Conclusions The method optimised in our study is simple, economical, and may enhance the number of female births without any decline in spermatozoa fertility.

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.

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