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Journal articles on the topic 'Swine gestation'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

García-Sánchez, Liliana, Marco Antonio Garzón-Zúñiga, Gerardo Buelna, et al. "Occurrence of tylosin in swine wastewater in Mexico." Water Science and Technology 68, no. 4 (2013): 894–900. http://dx.doi.org/10.2166/wst.2013.323.

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This study determined a tylosin concentration in swine wastewater located in a Mexican pig farm, during different stages of the pigs' growth. The detection of antibiotics in swine wastewater is complex due to its high concentration of solids. Analytical method was developed for detection of tylosin in swine wastewater and swine slurry. Average recoveries of tylosin in the liquid and solid phase were greater than 51 and 44%, respectively, with a greater total recovery of 95%. The results indicated the presence of tylosin in swine wastewater and slurry at concentrations greater than the ones rep

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2

Egbunike, G. N., and J. Steinbach. "EFFECTS OF SEASON AND LITTER SIZE ON GESTATION LENGTH IN SWINE." Nigerian Journal of Animal Production 4, no. 1 (2021): 43–51. http://dx.doi.org/10.51791/njap.v4i1.2204.

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488 gestations (309 Large White and 179 Landrace) and the size of all litters resulting from services which occurred between January 1967 and March 1970 were analysed. The mean gestation length was 113.96 days for the Large White and 113.74 days for the Landrace while the mean values for the litter size were 9.14 and 9.58 respectively. There was a significant negative correlation between these two traits in both breeds (P 0.01). A slight and non-significant seasonal effect (P 0.10) was shown with the highest and lowest gestation lengths being recorded in July (114.38 days) and in January and F

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3

Palencia, J. Y. P., C. A. P. Garbossa, R. P. Betarelli, et al. "Swine foetal myogenesis in different gestation periods." Journal of Animal Physiology and Animal Nutrition 102, no. 1 (2017): e99-e105. http://dx.doi.org/10.1111/jpn.12708.

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4

Vallet, Jeffrey L., Jeremy R. Miles, and Brad A. Freking. "Placental Hyaluronidase Expression during Gestation in Swine." Biology of Reproduction 78, Suppl_1 (2008): 217–18. http://dx.doi.org/10.1093/biolreprod/78.s1.217d.

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5

Hines, Elizabeth A., Matthew R. Romoser, Zoë E. Kiefer, et al. "The impact of dietary supplementation of arginine during gestation in a commercial swine herd: II. Offspring performance." Journal of Animal Science 97, no. 9 (2019): 3626–35. http://dx.doi.org/10.1093/jas/skz214.

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Abstract Arginine (Arg) is an important amino acid of pig fetal development; however, whether Arg improves postnatal performance is ill-defined. Therefore, the influence of Arg supplementation at different gestational stages on offspring performance was evaluated in a commercial swine herd. Sows (n = 548) were allocated into 4, diet by stage of gestation treatments: Control (n = 143; 0% suppl. Arg), or dietary treatments supplemented with 1% L-Arg (free-base; Ajinomoto Animal Nutrition North America, Inc., Chicago, IL): from 15 to 45 d of gestation (n = 138; Early-Arg); 15 d of gestation to fa

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6

DeRouchey, Joel M., Mike D. Tokach, Robert D. Goodband, Jason C. Woodworth, Steve S. Dritz, and Mariana Boscato Menegat. "27 Defining a robust sow: swine nutrition perspective on reproduction and lactation." Journal of Animal Science 97, Supplement_2 (2019): 13. http://dx.doi.org/10.1093/jas/skz122.023.

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Abstract Improvements in modern sow prolificacy have markedly increased the number of pigs weaned, thus the ability of sows to provide nutrients to support fetal growth and milk production has been enhanced. The goals of the gestation nutrition program consist of meeting the nutrient requirements for maintenance and growth and for adequate conceptus development, while managing body condition. Early gestation represents the best opportunity for replenishing body reserves, whereas in late gestation, both estimated protein deposition and energy requirement are exponentially increased and directed

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7

Honeyman, M. S., and W. B. Roush. "Supplementation of midgestation swine grazing alfalfa." American Journal of Alternative Agriculture 14, no. 3 (1999): 103–8. http://dx.doi.org/10.1017/s0889189300008201.

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AbstractFor four years (1991–1994), gestating gilts rotationally grazing alfalfa were compared to gilts in a dry lot fed 1,800 g/d of a corn-soy diet (control). The dietary supplementation treatments for the grazing gilts were 1,260 g, 720 g, and 180 g of ground corn (70, 40, and 10% of the gilts' energy needs) plus 45 g of monosodium phosphate and 9 g of salt (sodium chloride) per day. All gilts were fed individually. In 1991 and 1992, the gilts were fed daily. In 1993 and 1994, the gilts were fed their weekly feed ration in three equal feedings on Monday, Wednesday, and Friday. Alfalfa paddo

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8

Hines, Elizabeth A., Matthew R. Romoser, Zoë E. Kiefer, et al. "The impact of dietary supplementation of arginine during gestation in a commercial swine herd: I. Gilt reproductive performance." Journal of Animal Science 97, no. 9 (2019): 3617–25. http://dx.doi.org/10.1093/jas/skz233.

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Abstract Supplemental arginine (Arg) during gestation purportedly benefits fetal development. However, the benefits of a gestational Arg dietary strategy in commercial production are unclear. Therefore, the objectives of this study examined Arg supplementation during different gestational stages and the effects on gilt reproductive performance. Pubertal gilts (n = 548) were allocated into 4 treatment groups: Control (n = 143; 0% supplemental Arg) or 1 of 3 supplemental Arg (1% as fed) treatments: from 15 to 45 d of gestation (n = 138; Early-Arg); from 15 d of gestation until farrowing (n = 139

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9

Farmer, C. "Review: Mammary development in swine: effects of hormonal status, nutrition and management." Canadian Journal of Animal Science 93, no. 1 (2013): 1–7. http://dx.doi.org/10.4141/cjas2012-066.

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Farmer, C. 2013. Review: Mammary development in swine: effects of hormonal status, nutrition and management. Can. J. Anim. Sci. 93: 1–7. There are three phases of rapid mammary accretion in swine, namely, from 90 d of age until puberty, during the last third of gestation and throughout lactation. Nutrition, endocrine status and management of gilts or sows during those periods can affect mammary development. More specifically, in growing gilts, feed restriction as of 90 d of age hinders mammary development and either supplying the phytoestrogen genistein or increasing circulating concentrations

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10

Tonsor, Glynn T., Christopher Wolf, and Nicole Olynk. "Consumer voting and demand behavior regarding swine gestation crates." Food Policy 34, no. 6 (2009): 492–98. http://dx.doi.org/10.1016/j.foodpol.2009.06.008.

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11

Polaček, Vladimir, Biljana Đurđević, Tamaš Petrović, et al. "CLASSICAL SWINE FEVER VIRUS DETECTION IN FETAL SWINE TISSUES BY IMMUNOHISTOCHEMISTRY." Archives of Veterinary Medicine 13, no. 1 (2020): 83–100. http://dx.doi.org/10.46784/e-avm.v13i1.235.

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The classical swine fever virus has the ability to cross the placental barrier, resulting in the infection of fetuses, which may consequently lead to persistent infection in piglets. The aim of this study was to report the lesions in fetuses naturally infected with CSFV during late gestation and clarify the nature of infected cells and the distribution of viral antigen in different tissues. A total of twenty-nine fetuses aged 82, 83 and 95 gestational days originating from three naturally CSFV infected sows were examined in this study. In all tested sows and their fetuses CSFV was detected usi

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12

Tonsor, Glynn T., Nicole Olynk, and Christopher Wolf. "Consumer Preferences for Animal Welfare Attributes: The Case of Gestation Crates." Journal of Agricultural and Applied Economics 41, no. 3 (2009): 713–30. http://dx.doi.org/10.1017/s1074070800003175.

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Animal welfare concerns are having dramatic impacts on food and livestock markets. Here we examine consumer preferences for pork products with a focus on use of gestation crates. We examine underlying consumer valuations of pork attributes while considering preference heterogeneity as well as voluntary and legislative alternatives in producing gestation crate-free pork. Our results suggest that prohibiting swine producers from using gestation crates fails to improve consumer welfare in the presence of a labeling scheme documenting voluntary disadoption of gestation crates. Consumers are found

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13

HAYASHI, S., K. KOBAYASHI, J. MIZUNO, and R. OHISHI. "The gestation length of the swine transferred different breed embryos." Nihon Yoton Gakkaishi 31, no. 2 (1994): 48–50. http://dx.doi.org/10.5938/youton.31.48.

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14

See, G. M., M. D. Trenhaile‐Grannemann, M. L. Spangler, D. C. Ciobanu, and B. E. Mote. "A genome‐wide association study for gestation length in swine." Animal Genetics 50, no. 5 (2019): 539–42. http://dx.doi.org/10.1111/age.12822.

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15

Ramsay, T. G., C. K. Wolverton, and N. C. Steele. "Alteration in IGF-I mRNA content of fetal swine tissues in response to maternal diabetes." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 267, no. 5 (1994): R1391—R1396. http://dx.doi.org/10.1152/ajpregu.1994.267.5.r1391.

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Diabetes alters the level of insulin-like growth factor I (IGF-I) mRNA in tissues of postnatal animals, but the impact of maternal diabetes or gestational diabetes on IGF-I mRNA abundance in fetal tissues has not been examined. Pregnant pigs were injected with either buffer or alloxan (50 mg/kg) at day 75 of gestation to induce diabetes. Fetal tissue samples were collected at day 105 of gestation, and IGF-I mRNA abundance (densitometric units/10 micrograms total RNA) were estimated by specific ribonuclease protection assay. Fetal glucose and IGF-I concentrations were increased 166 and 34%, res

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16

Jenkins, Michael B., Janice L. Liotta, Araceli Lucio-Forster, and Dwight D. Bowman. "Concentrations, Viability, and Distribution of Cryptosporidium Genotypes in Lagoons of Swine Facilities in the Southern Piedmont and in Coastal Plain Watersheds of Georgia." Applied and Environmental Microbiology 76, no. 17 (2010): 5757–63. http://dx.doi.org/10.1128/aem.00434-10.

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ABSTRACT Waste lagoons of swine operations are a source of Cryptosporidium oocysts. Few studies, however, have reported on oocyst concentrations in swine waste lagoons; none have reported on oocyst viability status, nor has there been a systematic assessment of species/genotype distributions across different types of swine facilities. Ten swine waste lagoons associated with farrowing, nursery, finishing, and gestation operations were each sampled once a month for a year. Oocysts were extracted from triplicate 900-ml effluent samples, enumerated by microscopy, and assessed for viability by dye

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17

Ruen, Paul D., Gary D. Dial, Dale D. Polson, and William E. Marsh. "Breeding and Gestation Facilities for Swine: Matching Biology to Facility Design." Veterinary Clinics of North America: Food Animal Practice 8, no. 3 (1992): 475–502. http://dx.doi.org/10.1016/s0749-0720(15)30699-x.

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18

See, Garrett, Melanie Trenhaile-Gannemann, Daniel Ciobanu, Matthew L. Spangler, and Benny Mote. "66 A genome-wide association study for gestation length in swine." Journal of Animal Science 97, Supplement_2 (2019): 40. http://dx.doi.org/10.1093/jas/skz122.071.

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Abstract The objective of the current study was to conduct a genome-wide association on gestation length (GL) in different parities in swine. Sows (n = 831) belonging to the University of Nebraska – Lincoln resource population (Landrace X Nebraska Index Line) were utilized. GL was defined as the number of days between the final insemination and farrowing. Four traits, GL at parity 1, 2, 3 and 4 (GL1, GL2, GL3 and GL4, respectively) were investigated. Animals which were induced 24h prior to a farrowing event were removed from the analysis. Sows were genotyped with the Illumina SNP60 BeadArray.

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19

FARNWORTH, E. R., and J. K. G. KRAMER. "THE EFFECTS OF CHANGING SOW DIETARY FATTY ACIDS ON FETAL PLASMA FATTY ACID PATTERNS." Canadian Journal of Animal Science 69, no. 3 (1989): 813–17. http://dx.doi.org/10.4141/cjas89-094.

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Sows were fed a control diet or one with added tallow or soybean oil during gestation. Sow and fetal blood plasma fatty acids were determined at 57, 85 and 110 d gestation. The sow plasma fatty acid pattern, particularly 18:2n-6, was influenced by diet, but showed little change during gestation. High levels of polyunsaturated fatty acids, especially 18:2n-6 and 20:4n-6, were found in sow plasma. Fetal blood fatty acids were not directly influenced by maternal diet, but showed changes as gestation progressed. In the fetal plasma, 20:4n-6 was the major long chain polyunsaturated fatty acid, but

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20

Lindemann, M. D., A. P. Rigau, E. T. Kornegay, and A. F. Harper. "An Assessment of Source of Supplemental Dietary Fat During Early Gestation on Fetal Survival and Fetal Measurements in Swine." Proceedings of the British Society of Animal Production (1972) 1993 (March 1993): 130. http://dx.doi.org/10.1017/s0308229600024569.

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The greatest loss in litter size occurs prior to farrowing. That loss is the embryonic or fetal death loss; this is normally 25-40% of the number of eggs ovulated in swine. Recently a report from Canada (Fengler et al., 1990) demonstrated an improvement in embryo survival of about 14% with the dietary supplementation of oils in early gestation. The Canadian research supplemented the diet at a rate of 4% with either safflower oil or olive oil. The assumption tested and discussed was related to the role of linoleic acid (C 18:2w6) in swine diets. Linoleic acid is thought to be the only essential

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21

Janni, Kevin A., Montserrat Torremorell, Larry D. Jacobson, Carmen Alonso, and Brian P. Hetchler. "Modeling Airborne Virus Concentrations in Filtered Swine Barns with Negative-Pressure Ventilating Systems." Transactions of the ASABE 61, no. 3 (2018): 1089–99. http://dx.doi.org/10.13031/trans.12561.

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Abstract. Porcine reproductive and respiratory syndrome virus (PRRSV) is an economically significant pathogen in the swine industry that can spread through the air. Many swine gestation and farrowing barns with negative-pressure ventilating systems filter the inlet air to manage airborne PRRSV transmission using MERV 8 pre-filters in series with either MERV 14 or MERV 16 filters. Recent research reported air infiltration rates for a new 3,000-sow gestation/farrowing swine barn at several static pressure levels. The barn infiltration data and supplier-provided airflow versus pressure drop data

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22

Sanchez, Romeo E., Hans J. Nauwynck, Francis McNeilly, Gordon M. Allan, and Maurice B. Pensaert. "Porcine circovirus 2 infection in swine foetuses inoculated at different stages of gestation." Veterinary Microbiology 83, no. 2 (2001): 169–76. http://dx.doi.org/10.1016/s0378-1135(01)00425-4.

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23

Ortiz, Ruy, Manuel López, Rosa E. Pérez, Paola de la Paz Ramírez, and Gerardo Ordaz. "Effect of the Inclusion of Different Levels of Dietary Cactus (Opuntia ficus-indica) on Gilts’ Biochemical Parameters and Feed Intake during Lactation." Animals 10, no. 10 (2020): 1881. http://dx.doi.org/10.3390/ani10101881.

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The regulation of sows’ metabolic state during the gestation-lactation transition is a requirement for a higher feed intake in lactation, an important aspect in improving animal welfare in current swine production systems. The present study aimed to evaluate the effects of the inclusion of different cactus (Opuntia ficus-indica L.) levels in the diet of gilts during late gestation and lactation on their biochemical parameters and voluntary feed intake during lactation. From day 85 of gestation until weaning, 40 gilts were divided into four groups: GNC (group with no cactus) with a basal diet (

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24

FILATOV, A. V., V. S. LOBANOV, and V. P. KHLOPITSKY. "PROGESTAMAG® – AN EFFECTIVE REMEDY FOR INCREASE OF REPRODUCTIVE INDICATORS IN SWINE-BREEDING." PIG-BREEDING, no. 2 (2021): 43–45. http://dx.doi.org/10.37925/0039-713x-2021-2-43-45.

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The optimal frequency of administration and terms use of preparation Progestamag® for increased level of reproduction in sows are defined. The efficiency this hormonal progesterone-containing preparation in the critical period pregnancy of animals is revealed. Experimental studies have shown that injection of exogenous progesterone during early gestation contributes increase level of fertilization and multiple fetation of breeding stock pigs.

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25

Stock, J. D., J. A. Calderón Díaz, B. E. Mote, and K. J. Stalder. "031 Characterization of objective feet and leg joint measurements between selection and second gestation and between separate gestation ages in swine." Journal of Animal Science 94, suppl_2 (2016): 15. http://dx.doi.org/10.2527/msasas2016-031.

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26

Williams, Hadley, Leandro Del Tuffo, Mike D. Tokach, et al. "PSIX-7 Effects of a dietary seaweed product on sow progeny performance, fecal consistency, and fecal microbiota during gestation, lactation, nursery and grow-finish periods." Journal of Animal Science 98, Supplement_3 (2020): 189–90. http://dx.doi.org/10.1093/jas/skaa054.335.

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Abstract This study evaluated the effects of providing a selected mix of brown, red and green seaweeds (OceanFeed® Swine; Ocean Harvest Technology, Galway, Ireland) to sows during gestation and lactation and progeny during nursery and grow-finish periods on growth performance, fecal consistency, and microbiota composition. Twenty-eight sows and litters were used from d 30 of gestation until weaning. Sow treatments consisted of a control diet or diet supplemented with OceanFeed Swine (OFS) at 0.50% in gestation and 0.66% in lactation. At weaning, 360 pigs from these sows were used from d 0 to 5

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27

Leonard, Suzanne M., Hongwei Xin, Brett C. Ramirez, et al. "Static and Dynamic Space Usage of Late-Gestation Sows." Transactions of the ASABE 64, no. 1 (2021): 151–59. http://dx.doi.org/10.13031/trans.14002.

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HighlightsA calibration procedure was conducted using a Kinect V2 to convert image pixels to physical measurements.A total of 61 sows were observed, and their static and dynamic space usage was measured from depth images.Equations were developed to predict the length, width, and height of sow space usage.Abstract. The amount of space provided to individually housed sows has both financial and animal welfare implications. Many U.S. swine producers use stall dimensions based on recommendations published in the 1980s (length × width × height: 2.13 m × 0.61 m × 1.00 m). Limited empirical data are

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Ball, Ron, Crystal L. Levesque, and D. J. Cadogan. "88 Benefits of increasing amino acid intake in late gestation in prolific sows." Journal of Animal Science 98, Supplement_3 (2020): 76. http://dx.doi.org/10.1093/jas/skaa054.136.

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Abstract Most sows are fed a constant energy and amino acid supply throughout gestation, in line with the recommendations of most authorities and swine genetic companies. These recommendations for sow feeding have seen little change in decades, despite the many ways that sows have changed dramatically in reproductive performance. Beginning in about the year 2000, sow litter size has steadily increased as a result of genetic selection. With this increase in litter number has been a steady decline in birth weight, and the resulting negative effects of lower birthweight on subsequent piglet perfo

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29

Chitakasempornkul, Kessinee, Mariana B. Meneget, Guilherme J. M. Rosa, et al. "Investigating causal biological relationships between reproductive performance traits in high-performing gilts and sows1." Journal of Animal Science 97, no. 6 (2019): 2385–401. http://dx.doi.org/10.1093/jas/skz115.

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Abstract Efficient management of swine production systems requires understanding of complex reproductive physiological mechanisms. Our objective in this study was to investigate potential causal biological relationships between reproductive performance traits in high-producing gilts and sows. Data originated from a nutrition experiment and consisted of 200 sows and 440 gilts arranged in body weight blocks and randomly assigned to dietary treatments during late gestation at a commercial swine farm. Reproductive performance traits consisted of weight gain during late gestation, total number born

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30

Guo, Huiqing, Yuanyuan Wang, and Yuming Yuan. "Annual Variations of Odor Concentrations and Emissions from Swine Gestation, Farrowing, and Nursery Buildings." Journal of the Air & Waste Management Association 61, no. 12 (2011): 1361–68. http://dx.doi.org/10.1080/10473289.2011.623636.

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31

Zhao, Wangsheng, Khuram Shahzad, Mingfeng Jiang, et al. "Bioinformatics and Gene Network Analyses of the Swine Mammary Gland Transcriptome during Late Gestation." Bioinformatics and Biology Insights 7 (January 2013): BBI.S12205. http://dx.doi.org/10.4137/bbi.s12205.

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We used the newly-developed Dynamic Impact Approach (DIA) and gene network analysis to study the sow mammary transcriptome at 80, 100, and 110 days of pregnancy. A swine oligoarray with 13,290 inserts was used for transcriptome profiling. An ANOVA with false discovery rate (FDR < 0.15) correction resulted in 1,409 genes with a significant time effect across time comparisons. The DIA uncovered that Fatty acid biosynthesis, Interleukin-4 receptor binding, Galactose metabolism, and mTOR signaling were among the most-impacted pathways. IL-4 receptor binding, ABC transporters, cytokine-cytokine

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32

Stinn, John P., Hongwei Xin, Timothy A. Shepherd, Hong Li, and Robert T. Burns. "Ammonia and greenhouse gas emissions from a modern U.S. swine breeding-gestation-farrowing system." Atmospheric Environment 98 (December 2014): 620–28. http://dx.doi.org/10.1016/j.atmosenv.2014.09.037.

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33

Lu, Song, Mark Huffman, Ying Yao, et al. "Regulation of MTP expression in developing swine." Journal of Lipid Research 43, no. 8 (2002): 1303–11. http://dx.doi.org/10.1194/jlr.m200035-jlr200.

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To define the developmental expression of microsomal triglyceride transfer protein (MTP) large subunit mRNA and protein, samples of small intestine and liver were collected from 40-day gestation fetal, 2-day-old newborn, 3-week-old suckling, and 2-month-old weanling swine. In fetal animals, MTP mRNA expression was high in intestine and liver. Postnatally, jejunal expression paralleled the intake of a high-fat breast milk diet and declined after weaning. Ileal expression was comparable with that of jejunum in 2-day-old animals, but declined to low levels afterward. Hepatic expression declined p

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34

Wheeler, M. B., W. L. Hurley, J. Mosley, G. E. Bressner, E. Monaco та M. M. Cake. "436 RISK ANALYSIS OF α-LACTALBUMIN TRANSGENE TRANSFER TO NONTRANSGENIC CONTROL ANIMALS DURING REARING, BREEDING, PARTURITION AND LACTATION". Reproduction, Fertility and Development 22, № 1 (2010): 375. http://dx.doi.org/10.1071/rdv22n1ab436.

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Assessment of general risk posed from transgenic (T) animals is important to their future contributions to society. Identification of potentially harmful properties of transgenic livestock is the initial step in a risk assessment. We previously developed and characterized transgenic swine containing a mammary-specific transgene (bovine a-lactalbumin, bALAC) that results in increased milk production in sows. We are currently determining whether bALAC is expressed in tissues of T swine other than the lactating mammary gland and whether the transgene DNA (Tg) crosses into nontransgenic control (C

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Kwit, Krzysztof, Małgorzata Pomorska-Mól, and Iwona Markowska-Daniel. "Infectious agents involved in reproduction failure in swine." Medycyna Weterynaryjna 72, no. 6 (2016): 345–51. http://dx.doi.org/10.21521/mw.5523.

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Problems in the reproduction of pigs may be the result of interaction of various factors, both infectious and non-infectious. Among the infectious agents, the greatest economic losses are caused by viral infection of pregnant gilts and sows. In the present study the most important pathogens causing reproductive disorders in pigs, including parvovirus (PPV), porcine reproductive and respiratory syndrome (PRRSV), swine influenza virus (SIV), porcine circovirus type 2 (PCV2), enteroviruses, encephalitis virus (EMCV), Aujeszky's disease virus (ADV), classical swine fever virus (CSFV), Leptospira s

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36

Terlouw, S. L., C. D. Bierman, D. L. Kohler, B. A. Didion, and J. R. Dobrinsky. "146 RELOCATION OF SWINE GENETICS USING EMBRYO TRANSFER." Reproduction, Fertility and Development 21, no. 1 (2009): 172. http://dx.doi.org/10.1071/rdv21n1ab146.

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Swine production requires a stable health status that can be compromised by introduction of live animals for genetic change. Our objective was to use embryo transfer to avoid disease transmission during genetic relocation. Forty genotype-specific (GS) donor females were scheduled for 3 sessions of embryo recovery at 6-week intervals using Altrenogest (Matrix®, Intervet, Millsboro, DE), 1250 IU of equine chorionic gonadotropin (eCG/PMSG; Sigma, St. Louis, MO) and 750 IU of human chorionic gonadotropin (hCG; Chorulon®, Intervet). Single-sire GS matings were made 34 h after Chorulon® injection. T

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37

Romanini, Carlos Eduardo Bites, Yamilia Barrios Tolon, Irenilza de Alencar Nääs, and Daniella Jorge de Moura. "Physiological and productive responses of environmental control on housed sows." Scientia Agricola 65, no. 4 (2008): 335–39. http://dx.doi.org/10.1590/s0103-90162008000400002.

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Swine housing must promote an adjusted environment for thermal comfort and high animal productivity without negatively affecting the sow performance and reproductive response. This study evaluated the use of distinct environmental cooling equipments on sow performance, both on the gestation and on nursing in open sided housing. Two treatments were tested in the gestation building: natural ventilation and mechanical ventilation associated to fogging; while in the nursing rooms three treatments were tested: natural ventilation; mechanical ventilation; and evaporative cooling with forced ventilat

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Reber, Kristina M., Baogen Y. Su, K. Reed Clark, Dana L. Pohlman, Charles E. Miller, and Philip T. Nowicki. "Developmental expression of eNOS in postnatal swine mesenteric artery." American Journal of Physiology-Gastrointestinal and Liver Physiology 283, no. 6 (2002): G1328—G1335. http://dx.doi.org/10.1152/ajpgi.00067.2002.

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Developmental changes in the expression of endothelial nitric oxide synthase (eNOS) within the mesenteric artery of swine were studied in fetal (110 days postconception/117 days total gestation) and on postnatal days 1, 3, 10, and 30. Subjects in the 1-day-old group were subdivided into fed and nonfed. Transcription of eNOS was determined by real-time PCR, protein expression was evaluated by Western blotting, and hemodynamic and oxygenation parameters were measured within in situ gut loops before and after the administration of N G-monomethyl-l-arginine (l-NMMA). The abundance of eNOS mRNA rem

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39

Vázquez-Gómez, Marta, Consolación García-Contreras, Susana Astiz, et al. "Effects of L-Glutamine Supplementation during the Gestation of Gilts and Sows on the Offspring Development in a Traditional Swine Breed." Animals 11, no. 3 (2021): 903. http://dx.doi.org/10.3390/ani11030903.

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The use of amino acids during pregnancy, such as glutamine (Gln), seems to be a promising strategy in selected swine breeds to improve the offspring prenatal development. The main goal of the current study was to assess the development of the offspring from parity 1–3 sows of a traditional breed, which were supplemented with 1% glutamine after Day 35 of gestation, under farm conditions. A total of 486 (288 treated) piglets from 78 (46 treated) Iberian sows were used. At birth and slaughterhouse, fatty acid composition, metabolism, and mTOR pathway gene expression were analyzed. At birth, treat

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Palin, M. F., D. Beaudry, C. Roberge, and C. Farmer. "Expression levels of STAT5A and STAT5B in mammary parenchymal tissue from Upton-Meishan and Large White gilts." Canadian Journal of Animal Science 82, no. 4 (2002): 507–18. http://dx.doi.org/10.4141/a01-091.

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The implication of STAT5A and STAT5B in mammary gland development and maintenance of lactation is well documented in rodents and humans. However, little is known regarding their roles in mammary gland development during gestation in pigs. We identified and analyzed the complete coding sequences of swine STAT5A and STAT5B and evaluated their mRNA levels in mammary glands of gestating gilts (day 110) in two different breeds, Upton-Meishan and Large White. Sequence analysis revealed a new APASA insertion in the STAT5A amino acid sequence that is in close proximity to residue Tyr 699 and whose pho

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Miles, Jeremy, Lea A. Rempel, Robert Cushman, and Clay Lents. "PSXIII-35 Relationship between early gestation maternal plasma progesterone concentrations and within-litter birth weight variation from Yorkshire sired litters." Journal of Animal Science 97, Supplement_3 (2019): 368–69. http://dx.doi.org/10.1093/jas/skz258.735.

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Abstract The objective of this study was to determine if maternal plasma progesterone (P4) during early gestation influences within-litter birth weight variation in pigs. White crossbred females (n = 589) of mixed parity (1–4) were bred at standing estrus designated as day 0 of pregnancy and again 24 h later using single-sire semen from commercial Yorkshire genetics. At day 7 of pregnancy, a single blood sample from each female was collected, processed for plasma and P4 was analyzed using a validated RIA for swine. Dams were allowed to farrow under normal management procedures and standard lit

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Bampi, D., K. K. Borstnez, C. P. Dias, et al. "Evaluation of reproductive and animal welfare parameters of swine females of different genetic lines submitted to different reproductive management and housing systems during pregnancy." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 72, no. 5 (2020): 1675–82. http://dx.doi.org/10.1590/1678-4162-11767.

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ABSTRACT The aim of this study was to evaluate swine females of different genetic lines submitted to different reproductive management and housing systems during pregnancy on reproductive performance and animal welfare parameters. After artificial insemination protocol, 524 females were divided into two gestation housing systems: PEN1=animals housed in individual stalls during the breeding and after group-housed; PEN32=animals housed in individual stalls from breeding until 32 days of pregnancy and after group-housed. The number of piglets born, and the pregnancy and farrowing rates were evalu

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Lord, Etienne, Bruce D. Murphy, Joëlle A. Desmarais, Sandra Ledoux, Danièle Beaudry та Marie-France Palin. "Modulation of peroxisome proliferator-activated receptor δ and γ transcripts in swine endometrial tissue during early gestation". Reproduction 131, № 5 (2006): 929–42. http://dx.doi.org/10.1530/rep.1.00657.

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Recent evidence points to a role for peroxisome proliferator-activated receptors (PPARs) δ and γ in embryo implantation and survival. In this study, we report the porcine PPARδ complete coding sequence and mRNA abundance of PPARδ, PPARγ1 and γ2, angiopoietin-like protein 4 (ANGPTL4) and adipocyte determination and differentiation-dependent factor 1 (ADD1) genes in the pregnant sow endometrium. Real-time PCR analysis was used to study the effect of parity (Yorkshire-Landrace multiparous (YL) and nulliparous (YLn)), site of endometrial tissue sampling (between and at embryo attachment sites) in

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Raynor, Peter C., Shannon Engelman, Darby Murphy, Gurumurthy Ramachandran, Jeffrey B. Bender, and Bruce H. Alexander. "Effects of Gestation Pens Versus Stalls and Wet Versus Dry Feed on Air Contaminants in Swine Production." Journal of Agromedicine 23, no. 1 (2018): 40–51. http://dx.doi.org/10.1080/1059924x.2017.1387633.

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S. Rahman and D. Newman. "Odor, Ammonia, and Hydrogen Sulfide Concentration and Emissions from Two Farrowing-Gestation Swine Operations in North Dakota." Applied Engineering in Agriculture 28, no. 1 (2012): 107–15. http://dx.doi.org/10.13031/2013.41279.

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Pond, Wilson G., and Harry J. Mersmann. "Comparative Response of Lean or Genetically Obese Swine and Their Progeny to Severe Feed Restriction During Gestation." Journal of Nutrition 118, no. 10 (1988): 1223–31. http://dx.doi.org/10.1093/jn/118.10.1223.

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Ro, Kyoung S., Bryan Woodbury, Mindy Spiehs, et al. "Pilot-Scale H2S and Swine Odor Removal System Using Commercially Available Biochar." Agronomy 11, no. 8 (2021): 1611. http://dx.doi.org/10.3390/agronomy11081611.

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Although biochars made in laboratory seem to remove H2S and odorous compounds effectively, very few studies are available for commercial biochars. This study evaluated the efficacy of a commercial biochar (CBC) for removing H2S and odorous volatile organic compounds (VOCs). We found that the well-known Ergun equation may not be adequate in predicting pressure drop for properly sizing a ventilation system. The H2S breakthrough adsorption capacity of the CBC was 2.51 mg/g under humid conditions, which was much higher than that for dry conditions. The breakthrough capacity increased with the infl

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CHARUEST, JEAN-PIERRE, SYLVAIN PAGE, and JACQUES J. DUFOUR. "EFFET DU RÉGIME LUMINEUX IMPOSÉ DURANT LA GESTATION ET LA LACTATION SUR LES PERFORMANCES REPRODUCTIVES DES TRUIES À LEURS QUATRE PREMIERES PORTÉES." Canadian Journal of Animal Science 68, no. 4 (1988): 1015–25. http://dx.doi.org/10.4141/cjas88-116.

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During a 3-yr period, 902 Landrace-Yorkshire gilts were randomly assigned to a 4 h light: 20 h dark (4) or a 16 h light: 8 h dark (16) photoperiod as they entered the reproductive herd at an average age of 225 ± 15 d. The two light regimens were maintained throughout gestation (G) until 1 wk prior to farrowing. For the lactation period (L) the gilts were either maintained on the same light regimen as during gestation or switched to the opposite one before being returned at weaning to the light regimen imposed during gestation. Four light regimens were then formed, namely G4-L4, G4-L16, G16-L4

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Smith, Benjamin, Steven Hoff, Jay Harmon, Daniel Andersen, Jeffrey Zimmerman, and John Stinn. "Quantification of Site Layout and Filter Characteristics on Primary Filter Airflow Reduction on Commercial Swine Sites in Iowa." AgriEngineering 1, no. 2 (2019): 291–302. http://dx.doi.org/10.3390/agriengineering1020022.

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Fresh air intake filtration is used on commercial swine breeding-gestation-farrowing farms to reduce the frequency of airborne infectious agents. For swine producers, porcine reproductive and respiratory syndrome virus (PRRSV), influenza A virus and Mycoplasma hyopneumoniae are considered the most economically challenging airborne pathogens. Reduced frequency of disease outbreaks has been attributed to retrofitting existing systems with filtration. Economic analysis of operating costs includes energy use, maintenance and replacement of filters. Filter replacement, the largest operational cost,

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Rossow, K. D. "Porcine Reproductive and Respiratory Syndrome." Veterinary Pathology 35, no. 1 (1998): 1–20. http://dx.doi.org/10.1177/030098589803500101.

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In 1987, porcine reproductive and respiratory syndrome (PRRS) was recognized in the USA as a new disease of swine causing late-term reproductive failure and severe pneumonia in neonatal pigs. The syndrome is caused by an RNA virus referred to as PRRS virus (PRRSV), which is classified in the family Arteriviridae. Swine macrophages are the only indigenous cell type known to support PRRSV replication. Direct contact between infected and naive pigs is the predominant route of PRRSV transmission. Exposure of a mucosal surface to PRRSV leads to virus replication in regional macrophages, a prolonged

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