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https://www.readbyqxmd.com/read/28747097/tissue-engineering-strategies-to-improve-osteogenesis-in-the-juvenile-swine-alveolar-cleft-model
#1
Montserrat Caballero, Donna C Jones, Zhengyuan Shan, Sajjad Soleimani, John A van Aalst
Alveolar <b>(gumline)</b> clefts are the most common congenital bone defect in humans, affecting 1 in 700 live births. Treatment <b>to repair these bony</b> defects relies on autologous, <b>cancellous</b> bone transfer from the iliac crest. This harvest requires a second surgical site <b>with increased </b>surgical time associated with potential complications, <b>while providing only limited cancellous bone</b>. Improvements in treatment protocols that avoid these limitations would be beneficial to patients with clefts and other craniofacial bone defects...
July 26, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28745259/serum-and-tissue-25-oh-vitamin-d3-concentrations-do-not-predict-bone-abnormalities-and-molecular-markers-of-vitamin-d-metabolism-in-the-hypovitaminosis-d-kyphotic-pig-model
#2
Laura A Amundson, Laura L Hernandez, Thomas D Crenshaw
The hypovitaminosis D kyphotic pig provides a model to study maternal vitamin D (D) carryover on gross and molecular characteristics of bone abnormalities in offspring. Excess maternal D is proposed to protect offspring under nutritional challenges from developing bone abnormalities. Relationships between D sufficiency parameters and bone abnormalities were characterised. Sows (n 37) were fed diets with 0 (-D), 8·125 (+D) or 43·750 (++D) µg D3/kg throughout gestation and lactation. At weaning (3 weeks) pigs were fed diets with 0 (-D) or 7·0 (+D) µg D3/kg, each with 75 and 95 % (LCaP) or 150 and 120 % (HCaP) of the Ca and P requirements...
July 26, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28744832/isolation-and-selection-of-potential-probiotic-bacteria-from-the-pig-gastrointestinal-tract
#3
Luca Lo Verso, Martin Lessard, Guylaine Talbot, Benoit Fernandez, Ismail Fliss
The present study aimed to isolate bacterial strains from the pig gastrointestinal tract that have antagonistic activity against potential pathogens and are able to produce antimicrobial compounds. That ability would be a first requirement for the strains' possible use as probiotics. Samples obtained from pig intestinal mucosa and contents were screened for the presence of antagonistic activity against pathogenic indicator strains of Escherichia coli, Salmonella, and Listeria by means of the double-layer technique...
July 25, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28738417/a-pharmacodynamic-analysis-of-choroidal-neovascularization-in-a-porcine-model-using-three-targeted-drugs
#4
Jeffrey Tran, Caroline Craven, Kathy Wabner, Jenn Schmit, Brock Matter, Uday Kompella, Hans E Grossniklaus, Timothy W Olsen
Purpose: To compare the efficacy of microneedle-delivered suprachoroidal (SC) pazopanib to intravitreal (Ivit) delivery of pazopanib, bevacizumab, or a fusion protein hI-con1 versus vehicle controls on choroidal neovascularization (CNV) growth in a pig model. Methods: Forty-one pigs were injected on the day of CNV induction (hI-con1 on postinduction day 14) with either 2.5 mg Ivit bevacizumab (n = 9), 1 mg Ivit pazopanib (n = 9), 300 Ivit μg hI-con1 (n = 4), or 1 mg SC pazopanib (n = 9), vs...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28735585/analyses-of-body-weight-patterns-in-growing-pigs-a-new-view-on-body-weight-in-pigs-for-frequent-monitoring
#5
A H Stygar, K A Dolecheck, A R Kristensen
Frequent BW monitoring of growing pigs can be useful for identifying production (e.g. feeding), health and welfare problems. However, in order to construct a tool which will properly recognize abnormalities in pigs' growth a precise description of the growth process should be used. In this study we proposed a new model of pig growth accounting for daily fluctuations in BW. Body weight measurements of 1710 pigs (865 gilts and 843 barrows) originating from five consecutive batches from a Danish commercial farm were collected...
July 24, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28730711/supplementation-of-protease-alone-and-in-combination-with-fructooligosaccharide-to-low-protein-diet-for-finishing-pigs
#6
Xin Jian Lei, Jin Young Cheong, Jae Hong Park, In Ho Kim
Effects of adding protease with or without fructooligosaccharide (FOS) to low protein diet on growth performance, nutrient digestibility and fecal noxious gas emission were evaluated in 160 finishing pigs (57.70 ± 1.16 kg) in a 9-week study. Pigs were randomly divided into four dietary treatments, PC: positive control diet (15.97% crude protein (CP)); NC: negative control diet (12.94% CP); PRO: NC supplemented with 0.05% protease; PROFOS: NC supplemented with 0.05% protease and 0.1% FOS. During weeks 4-9 and weeks 0-9, gain : feed ratio was impaired (P < 0...
July 20, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28728401/research-trends-in-outdoor-pig-production
#7
Hyun-Suk Park, Sang Hyon Oh
Since the industrialization of swine production in the late 1900s, swine farms in the United States, as well as in Europe, have largely become consolidated. Pig farms became larger in size but fewer in number, with 91% of market pigs being produced by large operations with 5,000 or more pigs on-site in the US, and only 3% of the total utilized agricultural land representing organic farming. Such change in the market made it difficult for small farmers to stay competitive, forcing them to find alternative ways to reduce the cost of production and increase profit using the outdoor production system...
July 17, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728400/studies-on-meat-color-myoglobin-content-enzyme-activities-and-genes-associated-with-oxidative-potential-of-pigs-slaughtered-at-different-growth-stages
#8
Qin Ping Yu, Ding Yuan Feng, Juan Xiao, Fan Wu, Xiao Jun He, Min Hao Xia, Tao Dong, Yi Hua Liu, Hui Ze Tan, Shi Geng Zou, Tao Zheng, Xian Hua Ou, Jian Jun Zuo
Objective: This experiment was conducted to investigate meat color, myoglobin (Mb) content, enzyme activities, and expression of genes associated with oxidative potential of pigs slaughtered at different growth stages. Methods: Sixty 4-week-old Duroc × Landrace × Yorkshire pigs were assigned to 6 replicate groups, each containing 10 pigs. One pig from each group was sacrificed at day 35, 63, 98, and 161 to isolate longissimus dorsi and triceps muscles. Results: Meat color scores were higher in pigs at 35 d than those at 63 d and 98 d (P < 0...
May 14, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728397/effects-of-dietary-valine-lysine-ratio-on-the-performance-amino-acid-composition-of-tissues-and-mrna-expression-of-genes-involved-in-branched-chain-amino-acid-metabolism-of-weaned-piglets
#9
Yetong Xu, Xiaokang Ma, Chunli Wang, Mingfeng Yuan, Xiangshu Piao
Objective: The goal of this study was to investigate the effects of dietary standard ileal digestible (SID) valine:lysine ratios on performance, intestinal morphology, amino acids of liver and muscle, plasma indices and mRNA expression of branched-chain amino acid (BCAA) metabolism enzymes. Methods: A total of 144 crossbred pigs (Duroc × Landrace × Large White) weaned at 28 ± 4 days of age (8.79 ± 0.02 kg body weight) were randomly allotted to 1 of 4 diets formulated to provide SID valine: lysine ratios of 50, 60, 70 or 80%...
May 14, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728390/effect-of-dietary-net-energy-concentrations-on-growth-performance-and-net-energy-intake-of-growing-gilts
#10
Gang Il Lee, Jong Hyuk Kim, Gi Ppeum Han, Do Yoon Koo, Hyeon Seok Choi, Dong Yong Kil
Objective: This experiment investigated the effect of dietary net energy (NE) concentrations on growth performance and NE intake of growing gilts. Methods: Five diets were formulated to contain 9.6, 10.1, 10.6, 11.1, and 11.6 MJ NE/kg, respectively. A metabolism trial with 10 growing pigs (average body weight [BW] = 15.9 ± 0.24 kg) was conducted to determine NE concentrations of 5 diets based on French and Dutch NE systems in a 5 × 5 replicated Latin square design...
May 14, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728380/effects-of-different-space-allowances-on-growth-performance-blood-profile-and-pork-quality-in-a-grow-to-finish-production-system
#11
J C Jang, X H Jin, J S Hong, Y Y Kim
Objective: This experiment was conducted to evaluate the optimal space allowance on growth performance, blood profile and pork quality of growing-finishing pigs. Methods: A total of ninety crossbred pigs ([Yorkshire x Landrace] x Duroc, 30.25 ± 1.13 kg) were allocated into three treatments (0.96: four pigs / pen, 0.96 m2/pig; 0.80: five pigs / pen, 0.80 m2/pig; 0.69: six pigs / pen, 0.69 m2/pig) in a randomized complete block (RCB) design. Pigs were housed in balanced sex and had free access to feed in all phases for 14 weeks (growing phase I, growing phase II, finishing phase I and finishing phase II)...
June 26, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728239/-effect-of-hydrogen-rich-saline-on-the-cd4-cd25-foxp3-treg-cells-of-allergic-rhinitis-guinea-pigs-model
#12
F F Xu, S Q Yu, C L Zhao, N Che, L Jin, Q L Wang, R M Ge
Objective: To explore the effect of hydrogen-rich saline on the CD4(+) CD25(+) Foxp3(+) Treg cells in a guinea pig model of allergic rhinitis (AR) and investigate the underling anti-inflammatory mechanism. Methods: Using random number table, eighteen guinea pigs were divided into three groups (control group/AR group/HRS group, n=6 of each group). AR guinea pig model was built with ovalbumin and aluminum. The guinea pigs were injected with hydrogen-rich saline (HRS group) for ten days after sensitation. And control group was injected with equal normal saline at the same time...
July 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28727221/scar-formation-following-excisional-and-burn-injuries-in-a-red-duroc-pig-model
#13
Britani N Blackstone, Jayne Y Kim, Kevin L McFarland, Chandan K Sen, Dorothy M Supp, J Kevin Bailey, Heather M Powell
Scar research is challenging because rodents do not naturally form excessive scars, and burn depth, size, and location cannot be controlled in human longitudinal studies. The female, red Duroc pig model has been shown to form robust scars with biological and anatomical similarities to human hypertrophic scars. To more closely mimic the mode of injury, recreate the complex chemical milieu of the burn wound environment and enhance scar development, an animal model of excessive burn-induced scarring was developed and compared with the more commonly used model, which involves excisional wounds created via dermatome...
July 20, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28727119/nitrogen-from-ammonia-is-as-efficient-as-that-from-free-amino-acids-or-protein-for-improving-growth-performance-of-pigs-fed-diets-deficient-in-nonessential-amino-acid-nitrogen
#14
W D Mansilla, J K Htoo, C F M de Lange
Inclusion of NPN in diets may compensate the deficient supply of nonessential AA (NEAA) in very low CP levels. To assess this, 2 studies were conducted to determine the effect of supplementing NPN and specific NEAA to diets severely deficient in NEAA nitrogen (NEAA-N) on growth performance of pigs. In Exp. 1, 48 gilts (initial BW 15.2 ± 1.3 kg; 2 pigs per pen; 6 pens per treatment) were randomly assigned to 1 of the 4 dietary treatments: 1) positive control (Pos Ctrl), not deficient in essential AA (EAA) and total N, with all N supplied from intact protein (casein and soybean meal) or crystalline EAA, (2) negative control (Neg Ctrl), supplying the same amount of potentially limiting EAA as Pos Ctrl but deficient in NEAA-N, 3) Neg Ctrl plus 1...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727108/development-of-a-salmonella-typhimurium-challenge-model-in-weaned-pigs-to-evaluate-effects-of-water-and-feed-interventions-on-fecal-shedding-and-growth-performance
#15
P J van der Wolf, J G M Wientjes, A E Heuvelink, A M B Veldhuis, H M J van Hees, P J Roubos-van den Hil
The aim of this study was to develop a Typhimurium (ST) challenge model in weaned pigs suitable to evaluate effects of water and feed interventions on fecal shedding and growth performance. Two studies were performed. In Exp. 1 weaned pigs were fed either a standard diet (CON) or a diet with a high buffer capacity (HB) and challenged for either 3 or 7 consecutive days in a Latin square design with 4 × 8 individually housed pigs. In Exp. 2, the CON 7-d challenge method was chosen for further model development and validation...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727106/increasing-dietary-inclusions-of-camelina-cake-fed-to-pigs-from-weaning-to-slaughter-safety-growth-performance-carcass-traits-and-n-3-enrichment-of-pork
#16
M N Smit, E Beltranena
Feeding cake with remaining oil content not only provides additional dietary energy but may also enrich pork with -3 fatty acids. Limited information is available on feeding camelina cake to pigs relating to feeding safety (toxicity), growth performance, and efficacy of -3 enrichment of pork. Therefore, we evaluated the effects of feeding increasing camelina cake (12.2% crude fat) inclusions in diets for nursery and grower-finisher pigs. In total, 128 pigs (9.2 kg BW) were randomly allocated by sex to 32 nursery pens for 4 wk and were then moved and combined into 16 mixed-sex grower-finisher pens...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727094/effects-of-adding-minimally-refined-cottonseed-oil-or-crude-glycerol-to-diets-containing-40-corn-distiller-s-dried-grains-with-solubles-on-growth-performance-carcass-characteristics-and-pork-fat-firmness-of-growing-finishing-pigs
#17
C C E J Villela, R B Cox, G C Shurson, K M Compart, P E Urriola, L J Johnston
Diets containing more than 20% distiller's dried grains with solubles (DDGS) reduce fat firmness in pork, but supplementation of cottonseed oil or crude glycerol may improve fat firmness. The objective of this study was to assess the effect of feeding minimally refined cottonseed oil or crude glycerol on growth performance, carcass composition, and fat quality of growing-finishing pigs. Mixed sex pigs ( = 216; 24 ± 4 kg initial BW) were blocked by BW and allotted to 1 of 3 dietary treatments: 1) a basal corn-soybean meal diet with 40% DDGS (CON), 2) CON diet plus 5% minimally refined cottonseed oil added throughout the experiment (COT), or 3) CON fed during the first 8 wk and CON + 8% crude glycerol fed during the last 6 wk of the experiment (GLY)...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727090/effect-of-natural-betaine-and-ractopamine-hcl-on-whole-body-and-carcass-growth-in-pigs-housed-under-high-ambient-temperatures
#18
S M Mendoza, R D Boyd, C E Zier-Rush, P R Ferket, K D Haydon, E van Heugten
Betaine is an osmolyte that helps to maintain water homeostasis and cell integrity, which is essential during heat stress. We hypothesized that supplemental betaine can improve growth during heat stress and may further improve the response to ractopamine. Two studies were conducted to determine: 1) the effects of betaine in combination with ractopamine; and 2) the optimum betaine level for late finishing pigs during heat stress. Heat stress was imposed by gradually increasing temperatures over 10 d to the target high temperature of 32°C...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727088/ultraviolet-irradiation-of-spray-dried-porcine-plasma-does-not-affect-the-growth-performance-of-nursery-pigs-when-compared-with-nonirradiated-bovine-plasma
#19
K M Cottingim, L J Johnston, A M Hilbrands, G C Shurson, P E Urriola
Ultraviolet light irradiation of spray-dried porcine plasma (SDPP) decreases the risk of disease transmission, but it may decrease the activity of bioactive components in SDPP. Therefore, the objectives of this study were to determine growth performance, morbidity, and mortality responses of nursery pigs fed UV-irradiated SDPP (UV-SDPP) compared with nonirradiated spray-dried bovine plasma (SDBP). Pigs ( = 480; 6.09 ± 2.4 kg initial BW) were blocked by initial BW, and blocks were assigned to pens. the sex ratio was equalized within blocks and pens...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727084/feed-efficiency-metrics-in-growing-pigs
#20
J A Calderón Díaz, D P Berry, N Rebeiz, B U Metzler-Zebeli, E Magowan, G E Gardiner, P G Lawlor
The objective of the present study was to quantify the interrelationships between different feed efficiency measures in growing pigs and characterize pigs divergent for a selection of these measures. The data set included data from 311 growing pigs between 42 and 91 d of age from 3 separate batches. Growth-related metrics available included midtest metabolic BW (BW), energy intake (EI), and ADG. Ratio efficiency traits included energy conversion ratio (ECR), Kleiber ratio (ADG/BW), relative growth rate (RGR), residual EI (REI), and residual daily gain (RDG)...
July 2017: Journal of Animal Science
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