Animal Sciences | Open Access Articles | Digital Commons Network™

Incidence Of Splayleg Pigs In Nebraska Litter Size Selection Lines, J. W. Holl, R. K. Johnson

Department of Animal Science: Faculty Publications

Genetic parameters for the splayleg (SL) condition were estimated from 37,673 records of pigs from six lines derived from a Large White–Landrace base population. Random selection for 22 generations was practiced in Lines C1 and C2. Line C2 was derived from C1 at Generation 8. Selection lines were as follows: 1) Line I, selected 11 generations for an index of ovulation rate and embryonic survival followed by 11 generations of selection for litter size; 2) Line IOL, derived from Line I at Generation 8 and which underwent eight generations of two-stage selection for ovulation rate and number of fully formed …

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Estimation Of Genetic Parameters For Growth, Feed Consumption, And Conformation Traits For Double-Muscled Belgian Blue Bulls Performance-Tested In Belgium, N. Gengler, C. Seutin, F. Boonen, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

For 1,442 Belgian Blue bulls performance- tested at the Centre de Selection de la Race Blanc-Bleue Belge, nine traits were observed: height at withers at 7 mo, height at withers at 13 mo, weight at 7 mo, weight at 13 mo, average feed consumption of concentrates, average daily gain, average feed consumption of concentrates per average daily gain, average feed consumption of concentrates per mean metabolic weight, and price per kilogram of live weight. This price is based on muscle conformation and is therefore used as muscle conformation score. Restricted maximum likelihood with a derivative-free algorithm was used to estimate …

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Authors’ Response To The Letter To The Editor By Schinckel, R. K. Johnson, E. P. Berg, R. Goodwin, J. W. Mabry, R. K. Miller, O. W. Robison, H. Seller, M. D. Tokach

Department of Animal Science: Faculty Publications

In this letter, we provide responses to the issues raised by A. P. Schinckel in his Letter to the Editor regarding the manuscript by Johnson et al. (2004), “Evaluation of procedures to predict fat-free lean in swine carcasses,” J. Anim. Sci. 82:2428–2441. General responses to Schinckel’s letter are made first, followed by specific responses to each issue raised.

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Genetic Parameters For Stayability, Stayability At Calving, And Stayability At Weaning To Specified Ages For Hereford Cows, G. E. Martinez, R. M. Koch, L. V. Cundiff, K. E. Gregory, Stephen D. Kachman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Genetic parameters for stayability to six ages (ST1, . . ., ST6), for five measures of stayability to calving (SC2, . . ., SC6), and for five measures of stayability to weaning (SW2, . . ., SW6), were estimated using records of 2,019 Hereford cows collected from 1964 to 1979 from a selection experiment with a control line and three lines selected for weaning weight, yearling weight, and an index of yearling weight and muscle score. The model included birth year of the cow as a fixed effect and the cow’s sire as a random effect. Analyses were performed with …

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Fertility Of Yearling Beef Bulls During Mating, R. W. Ellis, Gary P. Rupp, P. J. Chenoweth, L. V. Cundiff, D. D. Lunstra

Department of Animal Science: Faculty Publications

Crossbred (Bos taurus) yearling beef bulls were assessed for breeding soundness and physical traits prior to multi-sire natural mating at pasture. Bulls (n = 60) were assigned to six groups of nine or 10 bulls and two bull-groups were rotated on 14-day intervals during a 63-day mating season in each breeding herd (n = 3) of 191–196 cows. The remaining bulls (n = 14) were maintained under similar environmental conditions without mating exposure. Bulls were observed during mating and assessed for breeding soundness and changes following mating. Bulls used for breeding (UFB) lost 77 kg …

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Genetic Evaluation Of Dairy Cattle With Test-Day Models With Autoregressive Covariance Structures And With A 305-D Model, R. M. Sawalha, Jeffrey F. Keown, Stephen D. Kachman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

This study compared genetic evaluations from 3 test-day (TD) models with different assumptions about the environmental covariance structure for TD records and genetic evaluations from 305-d lactation records for dairy cows. Estimates of genetic values of 12,071 first lactation Holstein cows were obtained with the 3 TD models using 106,472 TD records. The compound symmetry (CS) model was a simple test-day repeatability animal model with compound symmetry covariance structure for TD environmental effects. The AR_s and AR_e models also used TD records but with a first-order autoregressive covariance structure among short-term environmental effects or residuals, respectively. Estimates of …

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Epigenetic Transgenerational Actions Of Endocrine Disruptors And Male Fertility, Matthew D. Anway, Andrea S. Cupp, Mehmet Uzumcu, Michael K. Skinner

Department of Animal Science: Faculty Publications

Transgenerational effects of environmental toxins require either a chromosomal or epigenetic alteration in the germ line. Transient exposure of a gestating female rat during the period of gonadal sex determination to the endocrine disruptors vinclozolin (an antiandrogenic compound) or methoxychlor (an estrogenic compound) induced an adult phenotype in the F₁ generation of decreased spermatogenic capacity (cell number and viability) and increased incidence of male infertility. These effects were transferred through the male germ line to nearly all males of all subsequent generations examined (that is, F₁ to F₄). The effects on reproduction correlate with altered DNA …

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Loeffel Meat Laboratory

Department of Animal Science: Faculty Publications

A general research laboratory with various pieces of equipment including a Warner Bratzler shear, a small Hobart chopper for research samples, and a Spectronic 500 spectrophotometer with flow-through cell used for making colorimetic determinations. Beyond the desk and chair is a refrigerated centrifuge and at the end of the room is the Barber Colman 5000 gas chromatograph.

A view of the cooking laboratory, which is adjacent to the general research laboratory. It is equipped with a large rotary-hearth oven under the hood at the back of the room. An electrical household range and a deep fat fryer are on the …

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Biological Responses To Porcine Respiratory And Reproductive Syndrome Virus In Pigs Of Two Genetic Populations, D. B. Petry, J. W. Holl, J. S. Weber, Alan R. Doster, Fernando A. Osorio, R. K. Johnson

Department of Animal Science: Faculty Publications

One hundred pigs from the NE Index Line (NEI) and 100 Hampshire-Duroc cross pigs (HD) were inoculated intranasally with porcine respiratory and reproductive syndrome virus (PRRSV 97-7895 strain) at 26 d of age to determine whether genetic variation in response to PRRSV exists. An uninfected littermate to each infected pig served as a control. Pigs were from 163 dams and 83 sires. Body weight and rectal temperature were recorded, and blood samples were drawn from each pig on d 0 before inoculation and on d 4, 7, and 14 after inoculation. Pigs were sacrificed on d 14. Lung and bronchial …

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Influence Of Breed, Heterozygosity, And Disease Incidence On Estimates Of Variance Components Of Respiratory Disease In Preweaned Beef Calves, G. D. Snowder, L. Dale Van Vleck, L. V. Cundiff, G. L. Bennett

Department of Animal Science: Faculty Publications

The objective of this study was to characterize genetic and environmental factors influencing bovine respiratory disease (BRD) in beef cattle. Records from nine purebred and three composite breeds and a variety of F1 and three-way crosses, including the progeny of 12 additional different sire breeds produced over a 20-yr period (1983 to 2002), were evaluated for breed and heterozygosity effects on the observed incidence of BRD. Heterozygosity fractions for calves and dams were defined by generalized breed origins: British, Continental, and tropically adapted. Variance components were estimated for each pure and composite breed, and across all breeds and crossbreeds. The …

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Physical Mapping Of Genes In The Porcine Ovarian Transcriptome, A. R. Caetano, J. B. Edeal, K. Burns, R. K. Johnson, C. K. Tuggle, Daniel Pomp

Department of Animal Science: Faculty Publications

Reproductive efficiency and associated traits are of major economic importance to the swine industry and have been more difficult to improve genetically than other production traits. Integration of phenotypical data with gene mapping and expression studies provides a powerful approach for dissection of the genetic basis regulating complex traits. We developed a total of 101 polymerase chain reaction-based markers, representing 91 unique genes, for expressed sequence tags previously reported to be putatively differentially expressed in the porcine ovarian transcriptome of a swine line selected on an index of high ovulation rate and embryonic survival. These were subsequently used in physical …

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Evaluation Of Autoregressive Covariance Structures For Test-Day Records Of Holstein Cows: Estimates Of Parameters, R. M. Sawalha, Jeffrey F. Keown, Stephen D. Kachman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

The objective of this study was to compare test-day (TD) models with autoregressive covariance structures for the estimation of genetic and environmental components of variance for milk, fat and protein yields, and somatic cell score (SCS) in Holstein cows. Four models were compared: model I (CS model) was a simple TD repeatability animal model with compound symmetry covariance structure for environmental effects, model II (AR_pe model) and model III (AR_e model) had first-order autoregressive covariance structures for TD permanent or residual environmental effects, respectively, and model IV (305-d model) was a simple animal model using 305-d records. Data …

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Genetic Relationship Between Milk Score And Litter Weight For Targhee, Columbia, Rambouillet, And Polypay Sheep, R. M. Sawalha, G. D. Snowder, Jeffrey F. Keown, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

This study was conducted to evaluate the relationship between milk score (MS) and litter weight at 70 d (LW) for four sheep breeds in the United States. Milk score is a subjective measure of milk production used to assess milk production of range ewes when milk yield cannot be quantitatively determined. Variance components for MS and LW were estimated for each of Targhee, Columbia, Rambouillet, and Polypay breeds. Data collected from 1990 through 2000 at the U.S. Sheep Exp. Stn. in Dubois, ID, were analyzed with an animal model using REML. There were 13,900 records of MS and LW for …

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Genetic Analysis Of Carcass Traits Of Steers Adjusted To Age, Weight, Or Fat Thickness Slaughter Endpoints, A. Rios-Utrera, L. V. Cundiff, K. E. Gregory, R. M. Koch, M. E. Dikeman, M. Koohmaraie, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Carcass measurements from 1,664 steers from the Germ Plasm Utilization project at U.S. Meat Animal Research Center were used to estimate heritabilities (h²) of, and genetic correlations (r_g) among, 14 carcass traits adjusted to different endpoints (age, carcass weight, and fat thickness): HCW (kg), dressing percent (DP), adjusted fat thickness (AFT, cm), LM area (LMA, cm²), KPH (%), marbling score (MS), yield grade (YG), predicted percentage of retail product (PRP), retail product weight (RPW, kg), fat weight (FW, kg), bone weight (BNW, kg), actual percentage retail product (RPP), fat percent (FP), and bone percent. …

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Genetic Variance And Covariance Patterns For Body Weight And Energy Balance Characters In An Advanced Intercross Population Of Mice, Larry J. Leamy, Kari Elo, Merlyn K. Nielsen, L. Dale Van Vleck, Daniel Pomp

Department of Animal Science: Faculty Publications

We estimated heritabilities and genetic correlations for a suite of 15 characters in five functional groups in an advanced intercross population of over 2000 mice derived from a cross of inbred lines selected for high and low heat loss. Heritabilities averaged 0.56 for three body weights, 0.23 for two energy balance characters, 0.48 for three bone characters, 0.35 for four measures of adiposity, and 0.27 for three organ weights, all of which were generally consistent in magnitude with estimates derived in previous studies. Genetic correlations varied from −0.65 to +0.98, and were higher within these functional groups than between groups. …

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Lack Of Evidence For Cytoplasmic Effects For Four Traits Of Polypay Sheep, L. Dale Van Vleck, Kathryn J. Hanford, G. D. Snowder

Department of Animal Science: Faculty Publications

Analyses of birth and weaning weights, fleece weights of ewes, and number born per litter of Polypay sheep collected at the U.S. Sheep Experimental Station from 1978 through 1998, confirmed previous analyses of three other dual-purpose breeds that cytoplasmic effects do not contribute to variation in these four traits. In general, estimates of genetic parameters that would be needed for national genetic evaluation were similar to previous estimates for Columbia, Rambouillet, and Targhee sheep, although estimates of direct heritability for Polypay were somewhat less for birth weight, slightly greater for weaning weight, significantly greater for fleece weight, and the same …

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Corn Processing Co-Products Manual: A Review Of Current Research On Distillers Grains And Corn Gluten

Department of Animal Science: Faculty Publications

Table of Contents:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General Overview of Feeding Corn Milling Co-Products to Beef Cattle . . . . . . . . 3
Feeding Distillers Grains to Dairy Cattle . . . . . . . . . . . . . …

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Evaluation Of Grazing Alternate Summer And Fall Forages In Extensive Beef Cattle Production Systems, D. H. Shain, T. J. Klopfenstein, R. A. Stock, B, A. Vieselmeyer, G. E. Erickson

Department of Animal Science: Faculty Publications

Studies across 5 yr involving 938 British-breed crossbred cattle (372 heifers, 566 steers) were used to evaluate the effects of grazing alternate summer and fall forages on slaughter breakeven cost of various beef production systems. Grazed summer forage combinations included 1) continuous brome, 2)brome and warm-season grasses, 3) brome and alfalfa or sudangrass, 4) brome and a monoculture of red clover, 5) red clover seeded in brome, 6) brome and Native Sandhills range, or 7) Sandhills range only. Grazed fall forages included 1) brome, 2) brome and turnips, 3) brome and rye, or 4) brome and cornstalks. Following grazing, the …

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Effects Of Grazing Residues Or Feeding Corn From A Corn Rootworm-Protected Hybrid (Mon 863) Compared With Reference Hybrids On Animal Performance And Carcass Characteristics, K. J. Vander Pol, Galen E. Erickson, N. D. Robbins, L. L. Berger, C. B. Wilson, Terry J. Klopfenstein, E. P. Stanisiewski, G. F. Hartnell

Department of Animal Science: Faculty Publications

One grazing and two feeding experiments were conducted to compare the feeding value of corn residue or corn grain from a genetically enhanced corn hybrid (corn rootworm-protected; event MON 863) with nontransgenic, commercially available, reference hybrids. In Exp. 1, two 13.7-ha fields, containing corn residues from either a genetically enhanced corn rootworm- protected hybrid (MON 863), or a near-isogenic, nontransgenic control hybrid (CON) were divided into four equal-sized paddocks. Sixty-four steer calves (262 ± 15 kg) were stratified by BW and assigned randomly to paddock to achieve a stocking rate of 0.43 ha/steer for 60 d, with eight steers per …

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Utilization Of Corn Co-Products In The Beef Industry, Galen E. Erickson, Terry J. Klopfenstein, Don C. Adams, Richard J. Rasby

Department of Animal Science: Faculty Publications

Corn milling co-products are expected to increase dramatically in supply. Two primary types of milling processes currently exist, resulting in quite different feed products. The dry milling process produces distillers grains plus solubles, and the wet milling process produces corn gluten feed. These feeds can be marketed as wet feed, or they can be dried and marketed as either dry corn gluten feed or dry distillers grains with or without solubles. For the purposes of this article, only wet corn gluten feed (WCGF) and wet distillers grains plus solubles (WDGS) will be discussed. The majority of plant expansions are dry …

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An Evaluation Of Production And Economic Efficiency Of Two Beef Systems From Calving To Slaughter, R. V. Anderson, Richard J. Rasby, Terry J. Klopfenstein, R. T. Clark

Department of Animal Science: Faculty Publications

A 3-yr experiment was conducted with cows and their calves to evaluate resource inputs, animal performance, and carcass characteristics of two production systems. In the control system, cows (CON; n = 99/yr) grazed pasture and were fed hay during the winter, and CON steer calves were finished in the feedlot for 211 d after weaning. In the treatment system (TRT; n = 100/yr), cows grazed pasture and crop residue during the winter and were fed hay. Treatment steer calves grazed crop residue after weaning, grazed pasture in the spring and summer, and were finished in the feedlot for 90 d. …

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Comparative Effects Of The Sorghum Bmr-6 And Bmr-12 Genes: Ii. Grain Yield, Stover Yield, And Stover Quality In Grain Sorghum, A. L. Oliver, J. F. Jenkins, R. J. Grant, T. J. Klopfenstein, H. D. Jose

Department of Animal Science: Faculty Publications

Nearly 3 million hectares of grain sorghum [Sorghum bicolor (L). Moench] are harvested in the USA each year. It may be possible to add value to crop and animal systems by enhancing the digestibility of the stover residue by the use of brown midrib (bmr) genes if grain can be maintained. The objectives of this study were to evaluate the effect of bmr-6 and bmr-12 genes on grain yield of sorghum and to evaluate the effect of the bmr genes on stover yield and quality in these genetic backgrounds: ‘Wheatland’, ‘Redlan’, RTx430, Tx623, Tx630, Tx631, and the …

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Estimates Of Genetic Parameters For Feed Intake, Feeding Behavior, And Daily Gain In Composite Ram Lambs, K. M. Cammack, Kreg A. Leymaster, T. G. Jenkins, Merlyn K. Nielsen

Department of Animal Science: Faculty Publications

Our objective was to estimate genetic parameters for feed intake, feeding behavior, and ADG in composite ram lambs (¹⁄₂ Columbia, ¹⁄₄ Hampshire, ¹⁄₄ Suffolk). Data were collected from 1986 to 1997 on 1,239 ram lambs from approximately 11 to 17 wk of age at the U.S. Meat Animal Research Center near Clay Center, NE. Feeding equipment consisted of an elevated pen with an entrance chute that permitted access to the feeder by only one ram lamb at a time, with disappearance of feed measured by an electronic weighing system. Ram lambs were grouped 11 per pen from 1986 to 1989, …

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Phosphorus And Dairy/Beef Nutrition, Larry D. Satter, Terry J. Klopfenstein, Galen E. Erickson, J. Mark Powell

Department of Animal Science: Faculty Publications

Phosphorus (P), a required nutrient for all livestock, has numerous essential physiological functions in the body that include energy transfer (ATP), structure of bone, teeth, and membranes, and buffering pH changes in the rumen (salivary phosphate). Ruminants use a larger proportion of dietary P than nonruminants because rumen microbes produce phytase, the enzyme that hydrolyzes P from phytate. The majority of P in most grains is in phytate form, a P form largely unavailable to swine and poultry.

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Comparison Of A Corn Silage Hybrid With High Cell-Wall Content And Digestibility With A Hybrid Of Lower Cell-Wall Content On Performance Of Holstein Cows, S. K. Ivan, R. J. Grant, D. Weakley, J. Beck

Department of Animal Science: Faculty Publications

We hypothesized that substituting a corn hybrid with high cell-wall content and high neutral detergent fiber (NDF) digestibility (HCW) for a hybrid with lower cellwall content and lower NDF digestibility (LCW) would improve feed intake and milk production in lactating Holstein cows. There was a 3.6 percentage unit difference in NDF content and a 4.1 percentage unit difference in 30-h in vitro NDF digestion between the 2 corn hybrids. In trial 1, 40 cows (12 primiparous) ranging in milk production from 24.1 to 44.0 kg/d, following a 2- wk preliminary period, were used in a crossover design with 2-wk periods. …

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Unexpected Estimates Of Variance Components With A True Model Containing Genetic Competition Effects, L. D. Van Vleck, J. P. Morota

Department of Animal Science: Faculty Publications

Simulation of a model containing genetic competition effects was initiated to determine how well REML could untangle variances due to direct and competition genetic effects and pen effects. A two-generation data set was generated with six unrelated males that were each mated to five unrelated females to produce 300 progeny, from which 30 females (one per mating in previous generation) were mated to six unrelated males to produce 300 more progeny. Progeny were randomly assigned, six per pen, to 50 pens per generation. Parameters were V_g, V_c, C_gc, V_p, and V_{e …}

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Genetic And Environmental Factors Associated With Incidence Of Infectious Bovine Keratoconjunctivitis In Preweaned Beef Calves, G. D. Snowder, L. Dale Van Vleck, L. V. Cundiff, G. L. Bennett

Department of Animal Science: Faculty Publications

Infectious bovine keratoconjunctivitis (IBK) is one of the most economically important diseases in preweaned calves. This study examined the health records of 45,497 calves over a 20-yr period to determine environmental and genetic factors influencing the incidence of IBK. Three data sets were analyzed with an animal model. The first data set (n = 41,986) evaluated environmental factors and genetic differences among nine purebred (Angus, Braunvieh, Charolais, Gelbvieh, Hereford, Limousin, Pinzgauer, Red Poll, and Simmental) and three composite breeds (MARC I, MARC II, and MARC III). Weaning weights of calves diagnosed with IBK were 8.9 kg lighter (P < 0.05) than weights of healthy calves. Incidence of IBK was related to age of the calf and the seasonal life cycle of the face fly (Musca autumnalis …

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Full-Text Articles in Animal Sciences

Incidence Of Splayleg Pigs In Nebraska Litter Size Selection Lines, J. W. Holl, R. K. Johnson

Department of Animal Science: Faculty Publications

Estimation Of Genetic Parameters For Growth, Feed Consumption, And Conformation Traits For Double-Muscled Belgian Blue Bulls Performance-Tested In Belgium, N. Gengler, C. Seutin, F. Boonen, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Authors’ Response To The Letter To The Editor By Schinckel, R. K. Johnson, E. P. Berg, R. Goodwin, J. W. Mabry, R. K. Miller, O. W. Robison, H. Seller, M. D. Tokach

Department of Animal Science: Faculty Publications

Genetic Parameters For Stayability, Stayability At Calving, And Stayability At Weaning To Specified Ages For Hereford Cows, G. E. Martinez, R. M. Koch, L. V. Cundiff, K. E. Gregory, Stephen D. Kachman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Fertility Of Yearling Beef Bulls During Mating, R. W. Ellis, Gary P. Rupp, P. J. Chenoweth, L. V. Cundiff, D. D. Lunstra

Department of Animal Science: Faculty Publications

Genetic Evaluation Of Dairy Cattle With Test-Day Models With Autoregressive Covariance Structures And With A 305-D Model, R. M. Sawalha, Jeffrey F. Keown, Stephen D. Kachman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Epigenetic Transgenerational Actions Of Endocrine Disruptors And Male Fertility, Matthew D. Anway, Andrea S. Cupp, Mehmet Uzumcu, Michael K. Skinner

Department of Animal Science: Faculty Publications

Loeffel Meat Laboratory

Department of Animal Science: Faculty Publications

Biological Responses To Porcine Respiratory And Reproductive Syndrome Virus In Pigs Of Two Genetic Populations, D. B. Petry, J. W. Holl, J. S. Weber, Alan R. Doster, Fernando A. Osorio, R. K. Johnson

Department of Animal Science: Faculty Publications

Influence Of Breed, Heterozygosity, And Disease Incidence On Estimates Of Variance Components Of Respiratory Disease In Preweaned Beef Calves, G. D. Snowder, L. Dale Van Vleck, L. V. Cundiff, G. L. Bennett

Department of Animal Science: Faculty Publications

Physical Mapping Of Genes In The Porcine Ovarian Transcriptome, A. R. Caetano, J. B. Edeal, K. Burns, R. K. Johnson, C. K. Tuggle, Daniel Pomp

Department of Animal Science: Faculty Publications

Evaluation Of Autoregressive Covariance Structures For Test-Day Records Of Holstein Cows: Estimates Of Parameters, R. M. Sawalha, Jeffrey F. Keown, Stephen D. Kachman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Genetic Relationship Between Milk Score And Litter Weight For Targhee, Columbia, Rambouillet, And Polypay Sheep, R. M. Sawalha, G. D. Snowder, Jeffrey F. Keown, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Genetic Analysis Of Carcass Traits Of Steers Adjusted To Age, Weight, Or Fat Thickness Slaughter Endpoints, A. Rios-Utrera, L. V. Cundiff, K. E. Gregory, R. M. Koch, M. E. Dikeman, M. Koohmaraie, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Genetic Variance And Covariance Patterns For Body Weight And Energy Balance Characters In An Advanced Intercross Population Of Mice, Larry J. Leamy, Kari Elo, Merlyn K. Nielsen, L. Dale Van Vleck, Daniel Pomp

Department of Animal Science: Faculty Publications

Lack Of Evidence For Cytoplasmic Effects For Four Traits Of Polypay Sheep, L. Dale Van Vleck, Kathryn J. Hanford, G. D. Snowder

Department of Animal Science: Faculty Publications

Corn Processing Co-Products Manual: A Review Of Current Research On Distillers Grains And Corn Gluten

Department of Animal Science: Faculty Publications

Evaluation Of Grazing Alternate Summer And Fall Forages In Extensive Beef Cattle Production Systems, D. H. Shain, T. J. Klopfenstein, R. A. Stock, B, A. Vieselmeyer, G. E. Erickson

Department of Animal Science: Faculty Publications

Department of Animal Science: Faculty Publications

Utilization Of Corn Co-Products In The Beef Industry, Galen E. Erickson, Terry J. Klopfenstein, Don C. Adams, Richard J. Rasby

Department of Animal Science: Faculty Publications

An Evaluation Of Production And Economic Efficiency Of Two Beef Systems From Calving To Slaughter, R. V. Anderson, Richard J. Rasby, Terry J. Klopfenstein, R. T. Clark

Department of Animal Science: Faculty Publications

Comparative Effects Of The Sorghum Bmr-6 And Bmr-12 Genes: Ii. Grain Yield, Stover Yield, And Stover Quality In Grain Sorghum, A. L. Oliver, J. F. Jenkins, R. J. Grant, T. J. Klopfenstein, H. D. Jose

Department of Animal Science: Faculty Publications

Estimates Of Genetic Parameters For Feed Intake, Feeding Behavior, And Daily Gain In Composite Ram Lambs, K. M. Cammack, Kreg A. Leymaster, T. G. Jenkins, Merlyn K. Nielsen

Department of Animal Science: Faculty Publications

Phosphorus And Dairy/Beef Nutrition, Larry D. Satter, Terry J. Klopfenstein, Galen E. Erickson, J. Mark Powell

Department of Animal Science: Faculty Publications

Comparison Of A Corn Silage Hybrid With High Cell-Wall Content And Digestibility With A Hybrid Of Lower Cell-Wall Content On Performance Of Holstein Cows, S. K. Ivan, R. J. Grant, D. Weakley, J. Beck

Department of Animal Science: Faculty Publications

Unexpected Estimates Of Variance Components With A True Model Containing Genetic Competition Effects, L. D. Van Vleck, J. P. Morota

Department of Animal Science: Faculty Publications

Genetic And Environmental Factors Associated With Incidence Of Infectious Bovine Keratoconjunctivitis In Preweaned Beef Calves, G. D. Snowder, L. Dale Van Vleck, L. V. Cundiff, G. L. Bennett

Department of Animal Science: Faculty Publications

Unexpected Estimates Of Variance Components With A True Model Containing Genetic Competition Effects, L. Dale Van Vleck, J. P. Cassady

Department of Animal Science: Faculty Publications

History Of The Beef Teaching Herd Of The Animal Science Department, University Of Nebraska, James A. Gosey

Department of Animal Science: Faculty Publications

Optimal Wet Corn Gluten And Protein Levels In Steam-Flaked Corn-Based Finishing Diets For Steer Calves, H. C. Block, C. N. Macken, Terry Klopfenstein, Galen E. Erickson, Rick Stock

Department of Animal Science: Faculty Publications