September 12, 2017

New content available in TAS

New content has recently been posted in the Just Published and First Look sections of Translational Animal Science.

New Just Published articles:

FEEDING A CALF STARTER CONTAINING HIGHLY DIGESTIBLE CORN MAY IMPROVE CALF GROWTH
David P. Casper, Shruti Srivastava and Brittney Strayer
New corn hybrids have been developed by Masters Choice (MC) that vary in energy density due to an altered starch structure that improves ruminal and intestinal starch digestibility. Twenty-nine (1 to 3 d old; 40.6 ± 1.72 kg) Holstein heifer and 2 Holstein bull calves (31 total) were randomly assigned to 1 of 2 calf starters (CS) to measure growth performance of Holstein calves through 8 wk of age. Treatments were: 1) Control CS (CN): containing 40% conventional ground corn dry matter (DM) basis and 2) MC CS: containing 40% MC corn (DM basis). Calf starters were formulated to contain 24% crude protein (CP; DM basis) and were fed for ad libitum consumption as a pellet starting on d 1. (continued)

EVALUATION OF RAW PORK AS A COMMERCIALLY MANUFACTURED DIET OPTION FOR ZOO-MANAGED AFRICAN WILDCATS (FELIS SILVESTRIS LYBICA)
C. J. Iske, C. L. Morris and K. L. Kappen
Second to beef, pork is a major protein source produced in the US. Properly sourced and handled pork could be utilized as a protein option for zoo-managed carnivores. Concerns of high levels of microbial populations in raw meat diets are common. The objectives of this study were to determine apparent total tract macronutrient and energy digestibility and fecal scores from cats fed a commercially manufactured raw pork-based diet compared with commercially available raw carnivore diets formulated with either horse or beef and evaluate typical microbial population variation among the diets. (continued)

EFFECTS OF RACTOPAMINE HYDROCHLORIDE ON THE GROWTH PERFORMANCE AND CARCASS CHARACTERISTICS OF HEAVY-WEIGHT FINISHING PIGS SENT FOR SLAUGHTER USING A 3-PHASE MARKETING STRATEGY
J. W. Rickard, G. L. Allee, P. J. Rincker, J. P. Gooding, R. J. Acheson, D. R. McKenna, C. L. Puls and S. N. Carr
A total of 2,158 crossbred pigs was used to evaluate the effects of feeding 7.4 mg/kg ractopamine hydrochloride (RAC) on the growth performance and carcass characteristics of heavy-weight finishing pigs sent to slaughter using a 3-phase marketing strategy. The study was performed from 121.0 ± 4.28 kg to 144.5 ± 4.73 BW using a randomized complete block design (blocking factor was d of start on test) with 2 treatments (0 vs. 7.4 mg/kg RAC). Pigs were housed in a commercial wean-to-finish facility in groups of approximately 25 (44 groups/treatment), with ad libitum access to feed and water throughout the study, and pen weights of pigs were recorded at the start (d 0), and on d 7, 21, and 35 of study. (continued)

New First Look articles

Visit First Look to access the following articles:

PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS REDUCES FEED EFFICIENCY, DIGESTIBILITY AND LEAN TISSUE ACCRETION IN GROW-FINISH PIGS
Wes Schweer; J. Sparks; John Patience; Locke Karriker; Kent Schwartz; Thomas Burkey; Mark Fitzsimmons; Mark Weaver; Nicholas Gabler
doi: 10.2527/tas2017.0054

VALIDATION OF TRANSRECTAL ULTRASONOGRAPHY FOR ASSESSMENT OF CORPORA LUTEA CHARACTERISTICS IN PREGNANT SOWS AND ITS RELATIONSHIP WITH LITTER CHARACTERISTICS AT BIRTH1
Carolina Da Silva; Bjorge Laurenssen; Egbert Knol; Bas Kemp; Nicoline Soede
doi: 10.2527/tas2017.0057

THE COMPARISON OF THE LACTATION AND MILK YIELD AND COMPOSITION OF SELECTED BREEDS OF SHEEP AND GOATS
Mariane Ferro; Luis Tedeschi; Alberto Atzori
doi: 10.2527/tas2017.0056

MODELING THE EFFECTS OF STANDARDIZED ILEAL DIGESTIBLE ISOLEUCINE TO LYSINE RATIO ON GROWTH PERFORMANCE OF NURSERY PIGS
Anne Clark; Mike Tokach; Joel DeRouchey; Steve Dritz; Robert Goodband; Jason Woodworth; Kevin Touchette; Nora Bello
doi: 10.2527/tas2017.0048

MODELING THE EFFECTS OF STANDARDIZED ILEAL DIGESTIBLE VALINE TO LYSINE RATIO ON GROWTH PERFORMANCE OF NURSERY PIGS
Anne Clark; Mike Tokach; Joel DeRouchey; Steve Dritz; Robert Goodband; Jason Woodworth; Kevin Touchette; Nora Bello
doi: 10.2527/tas2017.0049