bluuebunny/crossref_metadata_2025_split huggingface dataset:
PSIII-2 Effect of Piglet Characteristics on Blood Glucose Levels at Birth
Authors: Rivas Rafael Ovidio Bautista , Willard Naomi C , Vande Pol Katherine D , Morris Jenny R , Espinal Alicia Olivo , Moest Nicole K , Shull Caleb M , Ellis Michael 
Published: May 2021

Abstract
Blood glucose levels in piglets at birth are potentially associated with survival, however, there has been limited research to quantify these and to establish any associations with piglet characteristics. This study, which evaluated the effects of a number of piglet characteristics on blood glucose levels at birth, was conducted as a cross-sectional survey involving 32 litters. Litter was the experimental unit; piglet was a sub-sample of litter. At birth, piglets were weighed and assigned a vitality score [1 = high vitality; 2 = low vitality (limited mobility and/or respiration)]. Piglets were then dried with a cellulose-based desiccant, and blood samples were collected from half of the piglets in each litter with a vitality score of 1 (n = 226) and all piglets with a vitality score of 2 (n = 7). Samples (1.2 μL) were collected from the vena subcutanea abdominis; blood glucose was measured using a glucometer (Accuchek Aviva; Roche Diabetes Care, Inc., Indianapolis, IN). Effects of piglet characteristics and relationships with blood glucose levels were analyzed using PROC MIXED, PROC GLIMMIX, and PROC REG of SAS, as appropriate. There were no effects (P &gt; 0.05) of piglet birth weight or gender on blood glucose levels. Piglets with a vitality score of 2 had higher (P &lt; 0.05) blood glucose levels than those with a score of 1. Blood glucose levels increased linearly (P &lt; 0.05) with birth order (0.8 mg/dL for each piglet increase). In conclusion, blood glucose levels at birth were higher for piglets with low compared to high vitality and for those born later in the birth order. Further research is needed to establish relationships between blood glucose levels in piglets at birth and subsequent survival.
PSIII-6 Gene Expression Profile of Beef Heifer Placental Caruncles Is Affected by Pre-breeding and Early Gestation Micronutrient Supplementation
Authors: Da Silva Diniz Wellison Jarles , Reynolds Lawrence P , Ward Alison K , Borowicz Pawel P , Sedivec Kevin K K , McCarthy Kacie L L , Kassetas Cierrah J J , Baumgaertner Friederike , Kirsch James D , Dorsam Sheri T T , Neville Tammi L , Forcherio J Chris , Scott Ronald , Caton Joel , Dahlen Carl R 
Published: May 2021

Abstract
Vitamins and minerals are essential for proper fetal and placental development and function. However, the impact of micronutrient supplementation on placental function and gene expression remains unclear. Herein, we performed a transcriptomic analysis to determine the impact of pre-breeding maternal micronutrient supplementation on the gene expression of placental caruncles (CAR; maternal placenta). Crossbred Angus beef heifers were supplemented (VTM, n = 7) or not (CON, n = 7) with 113 g•heifer-1•d-1 of mineral premix (Purina® Wind & Rain® Storm® All-Season 7.5 Complete) from d 71 to 148 before breeding and until d 83 of gestation. After breeding, heifers were fed a diet to gain 0.79 kg/d. Uteroplacental tissues were collected at d 83. The largest placentome closest to the fetus was collected, and CAR was manually dissected from the cotyledon. Total RNA was isolated from CAR, and gene expression was measured with RNA-Seq. After data quality control and read mapping, differential expression was performed using DESeq2. We identified 46 upregulated and 19 downregulated genes in the VTM group (adj.Pval &lt; 0.1). ShinyGO pathway analysis software was used to identify genes in the Ca and CGMP-PKG signaling pathways, including CALM2 and CAMK2G, which were down and upregulated, respectively. Calcium-mediated systems may activate steroidogenic activity in bovine placentomes, while the cGMP-PKG pathway plays a key role in vascular homeostasis mediated by nitric oxide and decreased Ca concentrations. Furthermore, biological processes underlying blood circulation were among those over-represented. Previous studies report that maternal nutrition may impact placental vascularity and uterine blood flow. ATP2B, that is upregulated in the VTM group, is a calcium/calmodulin-regulated, magnesium-dependent protein involved in intracellular Ca homeostasis. In summary, pre-breeding and early gestation maternal micronutrient supplementation leads to differential expression of genes involved in Ca homeostasis and has a putative effect on placenta vascular function.
PSIII-15 Effect of the Pelleting Process on Diet Formulations with Varying Levels of Crystalline AA and Reducing Sugars on Nursery Pig Growth Performance
Authors: Dunmire Kara M , Braun Michaela B , Zhang Yiqin , Jones Cassandra K , Li Yonghui , Woodworth Jason C , Goodband Robert D , Tokach Mike D , Fahrenholz Adam C , Stark Charles R , Paulk Chad B 
Published: May 2021

Abstract
A total of 360 pigs (DNA 200×400; initially 11.3 kg) were used in an 18-d study to determine the effect of pelleting diets with or without increased concentrations of free amino acids (AA) and reducing sugars (RS) on pig growth performance. There were 9 replications/treatment and 5 pigs/pen. Treatments were arranged in a 2×2×2 factorial with main effects of diet form (mash vs. pellet), crystalline AA (low vs. high), and RS (low vs. high) provided by dried distillers grain with solubles and bakery meal included at 20% and 15%, respectively. Diets were pelleted to achieve a conditioning temperature of 86.7°C using a 22.4 kW pellet mill equipped with a 4.7 x 34.9-mm die. Data were analyzed as a CRD using the GLIMMIX procedure of SAS. There were no 3-way interactions observed. For the main effect of feed form, ADFI decreased (P=0.001) and G:F and caloric efficiency improved (P=0.001) in pigs fed pelleted diets compared to mash diets. For the main effect of crystalline AA, pigs fed diets with high crystalline AA had increased (P&lt; 0.024) ADFI compared to those fed diets with low crystalline AA. For the main effect of RS, pigs fed high RS diets had decreased (P&lt; 0.041) ADG, ADFI, G:F, and caloric efficiency compared to those fed low RS. In conclusion, there was no evidence of interactions between treatments, indicating that increasing amounts of crystalline AA and RS did not influence the response to pelleted diets. Pigs fed the high RS diets had reduced feed intake which resulted in reduced gain and improved feed and caloric efficiency.
PSIII-23 Feeding In-shell Hazelnuts (Corylus Spp) to Pigs Alters Fatty Acid Profile of Pork Fat
Authors: Lammers Peter J , Pralle Ryan S , Wellnitz Krista R 
Published: May 2021

Abstract
The study objective was to examine the effects of feeding growing pigs in-shell hazelnuts (Corylus spp). Barrows (n = 36; 58.0 ± 0.73 kg body weight) were sorted into pens (6 pigs/pen; 4.05 m2/pig) across two study replicates. Pens were randomly assigned (n = 3 pens/treatment/replicate) to receive a balanced corn-soybean meal diet (control) or a diet diluted with in-shell hazelnuts (HAZEL; 90% control and 10% hazelnuts). Hazelnuts were pulverized using a roller mill before incorporation into the diet. Composition of the hazelnuts was 7.11% CP, 19.84% crude fat, and 53.32% ADF; C18:1 accounted for 74.93% of the total fat. Pigs were individually weighed every 28 days and feed disappearance by pen was recorded. Within replicate, all pigs were harvested on the same day after either 68 or 69 days of feeding. Two chops (last-rib location; 2.54 cm thick) were collected from each carcass to assess pork quality. One cube (2.54 cm3) of fat was removed from half of the chops (1 sample/pig) and analyzed for fatty acid profile. The R software (v. 4.0.2) package afex (v. 0.28) was used for statistical analysis by GLM (ADG, ADFI, G:F) or mixed models with subsampling (carcass traits and fatty acids). All models included fixed effects of treatment, replicate, and their interaction; mixed models included the random effect of pen and P-values were determined by parametric bootstrapping. Control pigs grew 6% more efficiently than HAZEL pigs (P = 0.03), but ADG and ADFI were not affected by treatment (P &gt; 0.05). Depth of backfat, hot carcass weight, chop color, intramuscular fat, and pH were not impacted by treatment (P &gt; 0.05). Fat from HAZEL pigs had more C18:1 and less C16:0 (P = 0.01) than control pigs. Supplementation of hazelnuts to pigs may alter pork fat composition.
PSIII-21 Optimum SID Threonine to Lysine Ratio in Nursery Pigs
Authors: Mercado Aileen Joy , Weeden Terry , Otto-Tice Emily , Tran Huyen , Rao Murali Raghavendra , Tsai Tsung Cheng , Maxwell Charles , Haydon Keith , de Rodas Brenda 
Published: May 2021

Abstract
A total of 270 pigs (PIC 1050 x DNA 600, 6.0 kg) were used in a 42-d nursery trial to determine the optimum SID threonine to SID lysine (SID Thr/Lys) ratio for young pigs. Pigs were sorted by sex and initial BW, and were allotted to each pen (3 barrows, 3 gilts). Pens were then randomly assigned to diets containing incremental levels of SID Thr/Lys ratio (0.55, 0.60, 0.65, 0.70, 0.75), achieved using THRPRO 80 (CJ America, CA) as the source of L-threonine. Each treatment consisted of 45 piglets and 9 replicates per treatment. There were 3 dietary phases (2 weeks each) and the same levels of SID Thr/Lys were tested for each phase. All performance data (ADG, ADFI, and Gain to Feed (G:F)) were analyzed using Proc Mixed in a RCBD model with SID Thr/Lys ratio as fixed effect and weight block as random effect. Orthogonal contrasts were performed to test for linear and quadratic effects of SID Thr/Lys ratio on all performance parameters. Final BW averaged around 20.8 kg (±0.6) and was not influenced by SID Thr/Lys ratio (P&gt;0.20). It was however lower than previously observed from previous nursery batches and might be due to pig infection with Lawsonia intracellularis and Streptococcus suis. A linear trend on ADG was observed during the last phase of nursery (P=0.10) but this response was not significant for the overall study (P&gt;0.15). SID Thr/Lys ratio had no significant effect on ADFI during any phase or overall experimental period (P&gt;0.20). Increasing SID Thr/Lys ratio, however, linearly increase G:F of nursery pigs overall (P&lt; 0.05). The results of this study suggest that there is value in terms of increasing efficiency of gain with higher level of SID Thr/Lys as compared to current NRC recommendation (0.59), especially under disease challenge conditions.
PSIV-12 Evaluation of the Effect of Benzoic Acid with or Without a Direct Fed Microbial on the Performance and Health of Growing and Finishing Pigs
Authors: Humphrey Dalton C , Bergstrom J R R , Calvo Estefania Perez , Greiner Laura L 
Published: May 2021

Abstract
The objective of this study was to determine if benzoic acid in combination of a direct fed microbial could improve grow-finish performance in swine. Three hundred and twenty (DNA 600 X 241, DNA Genetics, Columbus, NE) barrows and gilts were used to evaluate the effect of benzoic acid (BA; VevoVitall, DSM Nutritional Products, Parsippany, NJ) with or without a direct fed microbial (DFM; PureGro, DSM Nutritional Products, Parsippany, NJ) on the growth performance of pigs from approximately 35 to 125 kg. Pigs were sorted by sex, randomly placed into complete blocks, and equalized by weight (40 pens total). Pigs were fed a common diet for 11 days. Following acclimation, pens were assigned to one of four dietary treatments: standard commercial (PC), 85% PC SID lysine and lowered crude protein (NC), PC plus BA (BA at 0.3% inclusion), and PC plus BA and DFM (BA+DFM at 0.3 and 0.025% inclusion, respectively). Ultrasound was conducted to evaluate body composition on day 81. Data were analyzed using PROC MIXED in SAS with pen as the experimental unit. Results were considered significant at P≤0.05 and a trend at P &gt;0.05 and P≤0.10. Pigs fed BA had increased ADG compared to pigs fed PC (1.11 vs. 1.07 kg/d, P=0.02) and NC (1.11 vs. 1.07 kg/d, P=0.01), and similar ADG compared to pigs fed BA+DFM (1.11 vs. 1.09, P=0.21). G:F in pigs fed BA tended to be higher compared to pigs fed NC (0.175 vs. 0.172, P=0.06), and similar compared to pigs fed PC (0.175 vs. 0.176, P=0.51) and BA+DFM (0.175 vs. 0.174, P=0.73). There was a tendency in therapeutic intervention frequency across treatments (P=0.07). In conclusion, reducing lysine and crude protein levels resulted in poorer feed efficiency and BA resulted in increased gain in growing and finishing pigs from approximately 35 to 125 kg.
PSIV-17 Effects of Trace Mineral Source and Level on Growth Performance and Carcass Characteristics of Grow-finish Pigs
Authors: Cemin Henrique S , Swalla Luke A , Pietig Jamie L , Hansen Sharlie A , Hansen Ernie L 
Published: May 2021

Abstract
Two experiments were conducted to determine the effects of trace mineral source and level for grow-finish pigs. In Exp. 1, 2,168 pigs (initial BW = 23.0 kg) were used in a 117-d trial. There were 5 treatments based on inorganic (sulfates and oxides) or organic (Alltech Bioplex, Lexington, KY) minerals supplemented at different levels as follows: 1) Industry inorganic (120 mg/kg Zn, 100 mg/kg Fe, 40 mg/kg Mn, 10 mg/kg Cu); 2) 100% NRC inorganic (60 mg/kg Zn, 60 mg/kg Fe, 2.2 mg/kg Mn, 4 mg/kg Cu); 3) 33% NRC organic (20 mg/kg Zn, 20 mg/kg Fe, 0.7 mg/kg Mn, 1.3 mg/kg Cu); 4) 66% NRC organic (40 mg/kg Zn, 40 mg/kg Fe, 1.5 mg/kg Mn, 2.6 mg/kg Cu); and 5) 100% NRC organic (60 mg/kg Zn, 60 mg/kg Fe, 2.2 mg/kg Mn, 4 mg/kg Cu). Selenium level was 0.30 mg/kg for all treatments. Treatment 1 had 14 replicates and the other treatments had 18 replicates. Pigs were weighed approximately every three weeks and carcass data was collected at the end of the trial. Data was analyzed with SAS MIXED procedure. There was no evidence for differences (P &gt; 0.10) for overall ADG, ADFI, G:F, and final BW. Pigs fed 66% NRC organic had the highest (P &lt; 0.05) percentage lean and loin depth. In Exp. 2, 1,188 pigs (initial BW = 25.9 kg) were used in a 120-d trial with two treatments: 1) Industry inorganic and 2) 66% NRC organic, with the same mineral levels as Exp. 1 and 24 replicates per treatment. There was no difference (P &gt; 0.10) in growth performance. Similar to Exp. 1, pigs fed 66% NRC organic had higher (P &lt; 0.05) percentage lean and loin depth. In conclusion, lower levels of organic trace minerals resulted in improved carcass characteristics without compromising growth performance.
PSIV-16 Evaluation of Nutritional Strategies to Reduce Growth Rate of Pigs Beyond 90-kg Body Weight
Authors: Rao Zhong-Xing , Gebhardt Jordan T , Tokach Mike D , Woodworth Jason C , DeRouchey Joel M , Goodband Robert D 
Published: May 2021

Abstract
A total of 356 pigs (241×600; DNA; Columbus, NE; initially 89.0 kg) were used in a 44-d trial to evaluate nutritional strategies to reduce growth rate. Three diets [control, Lys-deficient, and corn (98% corn and 2% vitamins and minerals)] were arranged into 4 nutritional strategies. The three diets contained 0.70, 0.50, and 0.18% standardized ileal digestible (SID) Lys, respectively, with all nutrients other than amino acids above requirement estimates. From d 0 to 28, pens received one of two diets (control or Lys-deficient). On d 28, pens either remained on their previous treatment or were fed the corn diet from d 28 to 44. Pens were assigned to nutritional strategies in a randomized complete block design based on initial body weight (BW) with 18 pens/treatment from d 0 to 28 and 9 pens/treatment from d 28 to 44. From d 0 to 28, pigs fed the Lys-deficient diet had decreased (P&lt; 0.001) ADG, G:F, and d 28 BW compared to pigs fed the control diet. From d 28 to 44, pigs fed the corn diet had decreased (P&lt; 0.05) ADG and G:F compared to pigs fed the control or Lys-deficient diets. Pigs fed the Lys-deficient diet for 44 days had decreased (P&lt; 0.05) ADG and G:F compared to pigs fed the control diet for 44 days. From d 0 to 44, pigs fed the Lys-deficient diet then corn diet had decreased (P&lt; 0.05) ADG, final BW, and G:F compared to all other treatments. Pigs fed the Lys-deficient diet for 44-d and pigs fed the control diet then corn diet had decreased (P&lt; 0.05) ADG, G:F, and final BW compared to pigs fed the control diet for 44-d. In summary, feeding strategies with lysine deficient diets allow producers to slow growth rate of finishing pigs; however, feed efficiency is also impaired.
PSIV-11 Effects of Phytogenic Feed Additives on Growth Performance Traits of Finishing Swine
Authors: Xue Pengcheng , Giesting Don W , Newcomb Mark D , Pilcher Chad M , Ritter Matthew J 
Published: May 2021

Abstract
This study was conducted at a commercial research facility and utilized 1,092 finishing pigs (PIC® 337 × Camborough®) in a RCBD with 3 dietary treatments to determine the effects of commercially available phytogenic feed additives on growth performance traits in finishing swine for the last 35 d prior to marketing. The dietary treatments were as follows: 1) Control; 2) Aromex Pro® (AP; Delacon) fed at 0.01%; and 3) Ambitine® (AM; PMI) fed at 0.1%. Pens with 13 pigs/pen and 0.66 m2/pig were randomly allotted to treatments on the basis of live weight and gender. Pigs had ad libitum access to corn-soy diets that met or exceeded the pig’s requirements (NRC, 2012). Aromex Pro® and Ambitine® were added to the diets at the expense of corn. Dietary treatments started on day 0 (BW = 97.7 kg; SEM = 1.04) and were fed throughout the 35 d trial period. On d 21, the two heaviest pigs per pen were marketed, while the remaining pigs in each pen were marketed on d 35. Pigs and feeders were weighed on d 0, 21, and 35. Data were analyzed by using PROC MIXED of SAS® version 9.4, and pen was the experimental unit. The model included the fixed effect of treatment and random effect of replicate. Pre-planned orthogonal contrasts were used to compare AP vs. Control and AM vs. Control. Feeding AP or AM for the last 35 d in finishing both improved (P &lt; 0.05) ADG by 4%, ADFI by 3% and final BW by 1.6 kg over Control, but did not change feed to gain or mortality. These data demonstrate that phytogenic feed additives can improve growth performance traits in finishing swine.
PSV-18 Effect of Feeding Fermented Soybean Meal with Coconut Oil (Cocosoya) on the Growth Performance, Nutrient Digestibility, Fecal Score, Gas Emission and Blood Profile in Weaning Pigs
Authors: Madesh Muniyappan , Park Hyun Ju , Kim Inho , seok Woo Jeong 
Published: May 2021

Abstract
A study was conducted to evaluate the effects of dietary supplementation of fermented soybean meal (FSBM) with coconut oil on growth performance in weaning pigs. A total of 80 crossbred weanling pigs [42 days old] with average body weight (BW) of 6.52 ± 0.59 kg were used in a 6-week experiment trial. Pigs were blocked based on BW and sex and randomly allotted to 1 of 4 dietary treatments [5 pigs per pen (2 barrows and 3 gilts); 4 pens per treatment]. Treatments consisted of pigs fed: 1) CON, a basal diet with 2% coconut powder; 2) basal diet with a 3% cocosoya 3) basal diet with a 6% cocosoya 4) basal diet with 9% cocosoya. The supplementation of increasing levels of cocosoya to diet weaning pigs linearly increased (P = 0.05) the BW at week 1, 3 and 6 compared with the pigs fed the control diet. The average daily gain (ADG) and gain: feed (G:F) ratio was linearly increased (P &lt; 0.05) during day 1to7. The ADG, average daily feed intake (ADFI) and G: F was linearly increased (P &lt; 0.05) during day 8 to 21 were observed with the increase in the supplemental of cocosoya. The ADG and ADFI linearly increased (P &lt; 0.05) during day 22 to 42. The overall ADG, ADFI and G:F was linearly increased (P &lt; 0.05) in pigs fed increasing levels of cocosoya during overall experimental period. The creatinine was linearly increased (P &lt; 0.05) and blood urea nitrogen (BUN) concentration were trend to increase (P &lt; 0.05) in pigs fed increasing levels of cocosoya during day 22. Thus, the supplementation of FSMB has beneficial effects on the growth performance and immunity and it may help to overcome the stress faced by the weaning piglets during the transition of liquid to solid feed intake.
PSV-13 The Effect of Supplementing Sows with the Leucine Metabolite Beta-hydroxy-beta-methylbutyrate and Vitamin D3 Pre-parturition and During Lactation on Early Piglet Weight
Authors: Fuller John C , Castro Fabricio , Chaves Rhuan F , Mohr Mike , Rathmacher John A 
Published: May 2021

Abstract
Abstract: Several university studies supplementing calcium beta-hydroxy-beta-methylbutyrate (CaHMB) to sows have reported benefit to piglets such as a reduction in low birthweight piglets, increased piglet birth weight, and increased weaning weights. This study was designed to determine if these benefits would be observed in a commercial production setting using sows whose genetics are known for having a high number of piglets born, which generally results in lower average piglet birth weights. The study was conducted at a commercial farrow to finish operation (Patos de Minas, Minas Gerais, Brazil) and sows studies were randomly assigned to either CaHMB/D (n=41, 3 g CaHMB plus 500 IU Vitamin D3) or a control (n=46, Maltodextrin and CaCO3). Treatments were applied as a top-dress to the morning ration and were applied from 10 days pre-farrowing throughout the lactational period. The results were analyzed using GLM in SAS and Least Square Means±SEM were reported. Piglets from CaHMB/D-supplemented sows had a greater average live birth weights (1.39±0.027 versus 1.32±0.026 kg, respectively, p &lt; 0.05) and 24-hour weights (1.48±0.029 versus 1.39±0.028 kg. respectively, p &lt; 0.02). Normal farm practices were utilized in an attempt to equalize piglet numbers across sows by cross fostering piglets after 24 hours. After analysis of the data at the end of the study, the significant early weight advantage for CaHMB/D-supplemented pigs was eliminated during the cross-fostering process. After equalization, the 24-hour average piglet weights were not significantly different (1.53±0.041 versus 1.45±0.039 kg in CaHMB/D and control, respectively) and, therefore, further advantages to supplementation were not observed. Conclusion: This study would appear to support that feeding CaHMB/D in late gestation and early lactation can improve early piglet weights and further studies with controlled cross-fostering and monitoring individual piglet weight gain are necessary to confirm this advantage is continued throughout the lactation period and into the grower phase.