My Account: Log In

 

Translational Animal Science : Just Published

 

Accepted, edited articles are published here after author proofing to provide rapid publication and better access to the newest research. Articles are compiled into issues at dl.sciencesocieties.org/publications/tas, which includes the complete archive.

Citation | Articles posted here are considered published and may be cited by the doi.

Current issue: 1(1)



    • C. J. Long, L. B. Kondratovich, M. F. Westphalen, H. H. Stein and T. L. Felix
      Effects of exogenous phytase supplementation on phosphorus metabolism and digestibility of beef cattle

      Objectives were to determine interactions between phytase inclusion and dietary P concentration on P utilization by beef cattle fed a starch-based diet. Six ruminally-fistulated steers (BW = 750 ± 61 kg) were allotted to a 6 × 6 Latin square design with a 3 × 2 factorial arrangement of treatments. Factors included phytase inclusion, at 0, 500, or 2,000 phytase units (FTU)/kg of diet DM, and dietary P concentrations, at 0.10% and 0.30% of total diet DM. Feed ingredients, fecal samples, and orts were composited within period, lyophilized and ground. (continued)


      doi:10.2527/tas2017.0020
      Published: May 25, 2017



    • C. Farmer, J.-P. Martineau, S. Méthot and D. Bussières
      Comparative study on the relations between backfat thickness in late-pregnant gilts, mammary development and piglet growth

      The potential relation between body condition of gilts in late-pregnancy and litter BW gain as well as mammary development was studied using 2 sets of data. Gilts either from a commercial herd (Part 1, n = 182) or from a series of trials looking at mammary development (Part 2, n = 172) were separated in 3 groups according to backfat thickness (BF) on d 110 of gestation. Group categorization was similar for Parts 1 and 2 of the study and was: low (LOW), 13.6 ± 1.6 mm (mean ± SD); medium (MED), 17.6 ± 1.0 mm (mean ± SD); and high BF (HIGH), 21.8 ± 1.8 mm (mean ± SD) for Part 1, and LOW, 14.2 ± 1.3 mm (mean ± SD); MED, 18.1 ± 1.0 mm (mean ± SD), and HIGH 23.4 ± 2.6 mm (mean ± SD) for Part 2. The effects of BF group on piglet BW gain (Part 1) or on various mammary gland characteristics (Part 2) were determined using ANOVA. (continued)


      doi:10.2527/tas2017.0018
      Published: May 25, 2017



    • S. Acharya, J. P. Pretz, I. Yoon, M. F. Scott and D. P. Casper
      Effects of Saccharomyces cerevisiae fermentation products on the lactational performance of mid-lactation dairy cows

      This study was to evaluate 1 current and 2 newly developed Saccharomyces cerevisiae fermentation products (SCFP, Diamond V Original XPC and 2 test products) on the production efficiency of mid-lactation dairy cows. Eighty mid-lactation (164.5 ± 67.5 d in milk: DIM) Holstein cows (56 multiparous and 24 primiparous) were blocked by parity, DIM, and milk production, and randomly assigned to 1 of 4 treatments. Treatments consisted of: 1) Control (CON): corn silage and haylage based ration; 2) XPC: CON ration with Original XPC added at 14 g/d; 3) Product 1 (P1): CON ration with Product 1 added at 5 g/d; and 4) Product 2 (P2): CON ration with Product 2 added at 19 g/d. Treatments were blended with dried distillers grains and then mixed into a total mixed ration at 454 g/d. (continued)


      doi:10.2527/tas2017.0028
      Published: May 25, 2017



    • X. Lang, C. Wang, P. J. Wu and D. P. Casper
      Developmental changes in fatty acid-binding protein (H-FABP) mRNA expression and intramuscular fat (IMF) content in Oula sheep

      Increasing meat consumption by Chinese people has created a focus for improving meat quality for increasing quality of life. Twenty-five Male Oula sheep were selected at 2, 21, 56, 84, and 112 d to investigate the developmental changes associated with age on the intramuscular fat (IMF) content of heart fatty acid-binding protein (H-FABP) mRNA expression in muscle. Longissimus dorsal muscle and biceps femoris muscle were sampled to measure IMF concentrations and total mRNA was extracted to measure H-FABP mRNA expression using real-time polymerase chain reaction (PCR). Growing male Oula sheep demonstrated that the IMF concentrations continuously increased with age and significant differences (P < 0.05) were detected among the age groups; 2. (continued)


      doi:10.2527/tas2017.0017
      Published: May 25, 2017



    • J. A. Carroll, T. B. Schmidt, T. R. Callaway, J. G. Wilson and J. R. Donaldson
      Use of a novel oleaginous microorganism as a potential source of lipids for weanling pigs

      Weanling pigs are at risk of succumbing to illness due to an immature immune system and insufficient supply of available energy at the time of weaning. This study was aimed at determining whether oleaginous bacteria could serve as a source of lipids to weanling pigs. Weanling pigs were provided a daily dose of 1×109 colony fomring unit (CFU) = kg–1 of the novel oleaginous Enterobacter cloacae strain JD6301 or JD8715 (which is a variant form of JD6301 capable of producing extracellular triglycerides) via oral gavage for 5 d. Serum was collected every 6 h and intestinal samples were collected at 6 d. (continued)


      doi:10.2527/tas2017.0023
      Published: May 25, 2017



    • L. C. Eastwood, C. A. Boykin, M. K. Harris, A. N. Arnold, D. S. Hale, C. R. Kerth, D. B. Griffin, J. W. Savell, K. E. Belk, D. R. Woerner, J. D. Hasty, R. J. Delmore, J. N. Martin, T. E. Lawrence, T. J. McEvers, D. L. VanOverbeke, G. G. Mafi, M. M. Pfeiffer, T. B. Schmidt, R. J. Maddock, D. D. Johnson, C. C. Carr, J. M. Scheffler, T. D. Pringle and A. M. Stelzleni
      National Beef Quality Audit-2016: Transportation, mobility, and harvest-floor assessments of targeted characteristics that affect quality and value of cattle, carcasses, and by-products

      The National Beef Quality Audit-2016 (NBQA-2016) was conducted to assess current transportation, mobility, and quality characteristics of U.S. fed steers and heifers. Data were collected at 17 beef processing facilities between March and November 2016. About 8,000 live cattle were evaluated for transportation and mobility, and about 25,000 carcasses were evaluated on the slaughter floor. (continued)


      doi:10.2527/tas2017.0029
      Published: May 25, 2017



    • E. G. Taylor, P. J. Gunn, L. A. Horstman, R. L. Atkinson, K. Herron, K. D. Johnson and R. P. Lemenager
      Evaluation of forage soybean, with and without pearl millet, as an alternative for beef replacement heifers

      Apparent ruminal digestibility of forage soybean-based silages, with and without pearl millet, was determined along with evaluation of silages on heifer performance and reproductive function. Fermenters were utilized in a Latin square design and randomly assigned to 1 of the following treatments: 1) control diet of alfalfa haylage (CON), 2) soybean silage (SB) or 3) soybean and pearl millet silage (SB×PM). All diets were formulated to meet or exceed nutrient requirements of replacement beef heifers targeted to gain 0.79 kg/d. These same diets were fed to 90 Angus-Simmental beef replacement heifers [body weight (BW) = 366 kg; body condition score (BCS) = 5.53; age = 377 ± 11 d] 65 d prior to timed artificial insemination (TAI). (continued)


      doi:10.2527/tas2017.0022
      Published: May 11, 2017



    • C. F. Huang, H. H. Stein, L. Y. Zhang, Defa Li and C. H. Lai
      Concentrations of minerals in pig feed ingredients commonly used in China

      Mineral concentrations were determined in 13 different feed ingredients commonly used in swine diets. Ingredients included corn and 4 corn co-products: corn gluten feed, corn gluten meal, corn germ meal, and corn distillers dried grains with solubles (DDGS). Wheat, wheat bran, and wheat shorts were also included, and 5 oilseed meals including soybean meal, rapeseed meal, sunflower meal, cottonseed meal, and peanut meal were used as well. Corn grain contained 88.7% dry matter (DM) and 0.46% K (DM basis). (continued)


      doi:10.2527/tas2017.0013
      Published: May 11, 2017



    • N. McHugh, T. Pabiou, K. McDermott, E. Wall and D. P. Berry
      Impact of birth and rearing type, as well as inaccuracy of recording, on pre-weaning lamb phenotypic and genetic merit for live weight

      The objective of the present study was to quantify the impact of the systematic environmental effects of both birth and rearing type on pre-weaning lamb live weight, and to evaluate the repercussions of inaccurate recording of birth and rearing type on subsequent genetic evaluations. A total of 32,548 birth weight records, 35,770 forty-day weight records and 32,548 records for average daily gain (ADG) between birth and 40-day weight from the Irish national sheep database were used. For each lamb, a new variable, birth-rearing type, reflecting both the birth and rearing type of a lamb was generated by concatenating both parameters. The association between birth-rearing type and birth weight, 40-day weight, and ADG was estimated using linear mixed models. (continued)


      doi:10.2527/tas2017.0015
      Published: May 11, 2017



    • E. Barba-Vidal, V. F. B. Roll, L. Castillejos, A. A. Guerra-Ordaz, X. Manteca, J. J. Mallo and S. M. Martín-Orúe
      Response to a Salmonella Typhimurium challenge in piglets supplemented with protected sodium butyrate or Bacillus licheniformis : effects on performance, intestinal health and behavior 1,2

      Salmonella sppis one of the worldwide leading causes of food-borne illnesses for which the inclusion of probiotics or organic acids in animal feeds can be useful control methods. Experimental models are utilized to test the efficacy of strategies against pathogens, but they exhibit limitations which may preclude finding sensible evaluation parameters. The objective of this work is to evaluate the efficacy of 2 different feed additives; a Bacillus licheniformis based probiotic and a protected sodium butyrate (SB) salt, using an experimental model of salmonellosis and, second, to explore if behavior analysis can be used as a sensible evaluation tool for additives evaluation. A total of 78 piglets weaned at 24 d, 8.3 kg BW, were used. (continued)


      doi:10.2527/tas2017.0021
      Published: May 11, 2017



    • K. J. McLean, M. S. Crouse, M. R. Crosswhite, N. Negrin Pereira, C. R. Dahlen, P. P. Borowicz, L. P. Reynolds, A. K. Ward, B. W. Neville and J. S. Caton
      Impacts of maternal nutrition on uterine and placental vascularity and mRNA expression of angiogenic factors during the establishment of pregnancy in beef heifers

      We hypothesized that maternal nutrient restriction starting at the time of breeding would influence placental vascular development and gene expression of angiogenic factors during the first 50 d of gestation in beef heifers. Commercial Angus crossbred heifers (n = 49) were maintained on a total mixed ration and supplemented with dried distillers grains with solubles. All heifers were subject to 5-d CO-Synch + CIDR estrous synchronization protocol, AI to a single Angus sire, and randomly assigned to dietary treatments. One half were assigned to control diet (CON) targeted to gain 0.45 kg/d and the remaining half were assigned to restricted diet (RES), which received 60% of CON. (continued)


      doi:10.2527/tas2017.0019
      Published: May 11, 2017