V. Hays

发表

Benefits and Risks of Antibiotics Use in Agriculture

V. Hays, 1986 .

Effect of fat source and level on utilization of fat by young pigs.

R. C. Ewan, V. C. Speer, V. Hays, 1970, Journal of animal science.

Utilization of Fat by Young Pigs

J. Mccall, V. C. Speer, V. Hays, 1965 .

Absorption and utilization of sugars by the baby pigs.

R. C. Ewan, V. C. Speer, F. Aherne, 1969, Journal of animal science.

EFFECT OF DIETARY FAT , PROTEIN , CHOLESTEROL AND ASCORBIC ACID ON PERFORMANCE , SERUM AND TISSUE CHOLESTEROL LEVELS AND SERUM LIPID LEVELS OF SWINE 1

R. Hutagalung, V. Hays, L. G., 2007 .

Assessment of Bacteria and Mycotoxins in Feed and Coliforms in Water Offered to High and Low Performing Commercial Growing Hogs in California

L. L. Wilson, C. Stull, R. Wilson, 1999 .

Antibiotic resistance of fecal coliforms after long-term withdrawal of therapeutic and subtherapeutic antibiotic use in a swine herd

G. Cromwell, T. Stahly, B. E. Langlois, 1983, Applied and environmental microbiology.

Effect of reduced farrowing interval on sow productivity

V. C. Speer, V. Hays, N. Moody, 1969 .

Digestive enzyme development in the young pig.

P. Hartman, L. H. Neagle, V. Hays, 1961 .

Influence of type of antibiotic and length of antibiotic feeding period on performance and persistence of antibiotic resistant enteric bacteria in growing-finishing swine.

G. Cromwell, B. E. Langlois, V. Hays, 1978, Journal of animal science.

Effect of diet form and emulsifying agents on fat utilization by young pigs.

R. C. Ewan, V. C. Speer, V. Hays, 1969, Journal of animal science.

Nutritional value of opaque-2 corn for young chicks and pigs.

R. C. Ewan, V. C. Speer, V. Hays, 1969, The Journal of nutrition.

Chapter 2 – Nutrition and Feeding Management to Alter Carcass Composition of Pigs and Cattle

R. Preston, V. Hays, 1994 .

Effect of a Hydrated Sodium Calcium Aluminosilicate on Growth Performance and Carcass Traits of Pigs

L. Southern, T. Bidner, J. Matthews, 1999 .

Chapter 38 – Statistical Techniques for the Design and Analysis of Swine Nutrition Experiments

D. K. Aaron, V. W. Hays, V. Hays, 1991 .

The effect of age and supplemental amino acids on the utilization of milk and soya protein by the young pig.

V. C. Speer, V. Hays, D. Catron, 1959, The Journal of nutrition.

The free blood plasma amino acids of swine as related to the source of dietary proteins.

V. C. Speer, V. Hays, F. Puchal, 1962, Journal of NutriLife.

Effect of lactation duration on reproductive performance of sows.

G. Cromwell, V. Hays, R. Dutt, 1974, Journal of animal science.

20 – The Role of Antibiotics in Efficient Livestock Production

V. Hays, 1978 .

EFFICACY AND SAFETY OF FEED ADDITIVE USE OF ANTIBACTERIAL DRUGS IN ANIMAL PRODUCTION

W. Muir, V. Hays, 1979 .

Effect of feed intake and antibiotic on reproduction in gilts.

V. C. Speer, V. Hays, W. Switzer, 1968 .

Effect of dietary chemotherapeutics on the performance and fecal flora of baby pigs.

V. C. Speer, L. Quinn, V. Hays, 1966 .

Effect of level and source of dietary protein on performance and fecal flora of baby pigs.

V. C. Speer, L. Quinn, V. Hays, 1964 .

Effect of an antibiotic (tylosin) and protein source on swine reproduction.

V. B. Mayrose, J. Mccall, V. C. Speer, 1964 .

Effect of spiramycin on growth and feed utilization of young pigs.

V. C. Speer, V. Hays, 1960 .

The Effect of Oleandomycin on the Performance of the Young Growing Pig

V. C. Speer, V. Hays, F. Díaz, 1960 .

Intestinal flora of the pig as influenced by diet and age.

V. C. Speer, L. Quinn, V. Hays, 1960, The Journal of nutrition.

Effect of dietary ascorbic acid on performance and plasma cholesterol levels of growing swine.

G. Cromwell, V. Hays, J. R. Overfield, 1970, Journal of animal science.

Effect of dietary fat, protein, cholesterol and ascorbic acid on performance, serum and tissue cholesterol levels and serum lipid levels of swine.

G. Cromwell, R. Hutagalung, V. Hays, 1969, Journal of animal science.

Effects of dietary protein and iron on reproduction and iron-related blood constituents in swine.

G. Cromwell, V. Hays, D. Spruill, 1971, Journal of animal science.

Influence of chlortetracycline in swine feed on reproductive performance and on incidence and persistence of antibiotic resistant enteric bacteria.

G. Cromwell, B. E. Langlois, V. Hays, 1978, Journal of animal science.

Effect of Lactation Length and Dietary Antibiotics on Reproductive Performance of Sows

G. Cromwell, D. Kratzer, V. Hays, 1978 .

Effect of protein malnutrition of the sow on reproductive performance and on postnatal learning and performance of the offspring.

G. Cromwell, D. Kratzer, V. Hays, 1976, Journal of animal science.

Influence of one-day or conventional flushing on ovulation rate and litter size at 28 days gestation in gilts.

C. P. Moore, G. Cromwell, V. Hays, 1973, Journal of animal science.

Postweaning performance of pigs from gilts fed diets high and low in protein during gestation and lactation.

G. Cromwell, D. Kratzer, V. Hays, 1973, Journal of animal science.

Reproductive performance of gilts fed diets low in protein during gestation and lactation.

G. Cromwell, D. Kratzer, V. Hays, 1972, Journal of animal science.

Effect of protein level during pregnancy and lactation on plasma amino acid profile of swine.

V. C. Speer, V. Hays, P. Holden, 1969, Journal of animal science.

Effect of Protein Level during Pregnancy and Lactation on Reproductive Performance in Swine

V. C. Speer, V. Hays, P. Holden, 1968 .

Effect of protein and energy intake on reproductive performance in swine.

V. C. Speer, V. Hays, L. T. Frobish, 1966, Journal of animal science.

Influence of feed intake and progestogen on reproductive performance in swine.

V. C. Speer, V. Hays, R. Melampy, 1966, Journal of animal science.

How Well Do Your Pigs Measure Up

V. Hays, 1961 .

Reproductive performance of sows on a protein-restricted diet.

G. Cromwell, V. Hays, M. J. Degeeter, 1972, Journal of reproduction and fertility.

Glucose and fructose in the fetal and newborn pig.

R. C. Ewan, V. C. Speer, F. Aherne, 1969 .

Effects of protein source, goitrogens and iodine level on performance and thyroid status of pigs.

G. Cromwell, V. Hays, D. Sihombing, 1974, Journal of animal science.

Effects of Dietary Phosphorus and Calcium Level on Performance, Bone Mineralization and Carcass Characteristics of Swine

G. Cromwell, V. Hays, C. H. Chaney, 1970 .

Effect of feeding levels on the reproductive performance of swine.

V. B. Mayrose, V. C. Speer, V. Hays, 1966 .

Effect of Fat on Performance of Baby and Growing Pigs

R. C. Ewan, V. C. Speer, V. Hays, 1975 .

Effects of Dietary Protein and Energy Levels for Growing-Finishing Swine on Performance, Muscle Composition and Eating Quality of Pork

J. D. Kemp, G. Cromwell, V. Hays, 1978 .

Thyroprotein for Lactating Sows

V. C. Speer, V. Hays, C. W. Johnson, 1959 .

Injectable Iron-Dextran and Several Oral Iron Treatments for the Prevention of Iron-Deficiency Anemia of Baby Pigs

V. C. Speer, D. Zimmerman, V. Hays, 1959 .

Effects of copper sulfate, copper oxide and chlortetracycline on baby pig performance.

R. Bunch, V. C. Speer, V. Hays, 1961 .

Relationship of vitamin A to S35 metabolism in the baby pig.

R. S. Allen, V. C. Speer, V. Hays, 1959, The Journal of nutrition.

Effects of iodine level on performance and thyroid traits of growing pigs.

G. Cromwell, V. Hays, D. Sihombing, 1975, Journal of animal science.

Calcium and Phosphorus Requirements of Growing-Finishing Swine

P. G. Homeyer, H. L. Chapman, V. C. Speer, 1962 .

Calcium studies with baby pigs.

V. C. Speer, D. Zimmerman, V. Hays, 1960 .

Thyroid function in the young pig and its relationship with vitamin A.

V. C. Speer, V. Hays, D. Frape, 1959, The Journal of nutrition.

Investigational use of artificial insemination in farm swine.

J. Lovell, V. C. Speer, V. Hays, 1965, Iowa State University veterinarian.

Nitrogen Retention, Ovulation Rate, and Hormonal Profiles in Gilts Fed a High-Protein Diet

B. N. Day, T. Veum, G. Jesse, 1998 .

Effects of high levels of copper and chlortetracycline on performance of pigs.

R. Bunch, J. Mccall, V. C. Speer, 1963 .

COPPER , MOLYBDENUM AND SULFATE FOR PIGS AND LAMBS 777

R. D. Kline, V. Hays, G. L. Croiviwell, 2022 .

G. Cromwell, R. D. Kline, M. Corzo, 1973, Journal of animal science.

Effects of copper, molybdenum and sulfate on performance, hematology and copper stores of pigs and lambs.

G. Cromwell, R. D. Kline, V. Hays, 1971, Journal of animal science.

Effect of copper sulfate and other chemotherapeutics in growing swine rations.

V. C. Speer, V. Hays, D. Catron, 1961 .

Effect of dietary fat, protein and cholesterol on atherosclerosis in swine.

J. Mccall, V. C. Speer, V. Hays, 1966, The Journal of nutrition.

Effects of Level of Corn- and Barley-Base Diets on Performance and Body Composition of Swine

E. Hammond, J. Mccall, V. C. Speer, 1965 .

Energy, protein and methionine interrelationships in growing pig rations

V. Hays, 1957 .

Effects of starter protein level on performance and body composition of pigs.

R. C. Ewan, V. C. Speer, V. Hays, 1969, Journal of animal science.

Copper Supplementation for Weanling Pigs

R. Bunch, J. Mccall, V. C. Speer, 1965 .

Effect of fat source on pancreatic lipase activity and specificity and performance of baby pigs.

R. C. Ewan, V. C. Speer, V. Hays, 1971, Journal of animal science.

Potassium, protein and basic amino acid relationships in swine.

J. Mccall, V. C. Speer, J. Leibholz, 1966, Journal of animal science.

Nutritional Quality of Recycled Food Plate Waste in Diets Fed to Swine12

L. L. Wilson, E. W. Zirkle, M. Westendorf, 1999 .

EXCLUSION OF THE EXOCRINE PANCREATIC SECRETION: EFFECT ON DIGESTIBILITY OF SOYBEAN AND MILK PROTEIN BY BABY PIGS AT VARIOUS AGES.

V. Hays, A. M. Thompson, J. C. Pekas, 1964, Journal of NutriLife.

Interactive effects of dietary calcium, phosphorus and copper on performance and liver stores of pigs.

G. Cromwell, V. Hays, T. J. Prince, 1984, Journal of animal science.

Effects of dietary calcium and phosphorus on performance and carcass, metacarpal and turbinate characteristics of swine.

G. Cromwell, V. Hays, C. Scherer, 1972, Journal of animal science.

Effect of Calcium and Phosphorus Levels on Baby Pig Performance

V. C. Speer, D. Zimmerman, V. Hays, 1963 .

Comparative performances of baby pigs fed infant and baby pig diets.

P. G. Homeyer, V. C. Speer, V. Hays, 1959, The Journal of nutrition.

Characteristics of the exocrine pancreatic secretion of the young pig.

V. Hays, A. M. Thompson, J. C. Pekas, 1966, Journal of animal science.

Nutritive Value of Several Varieties of Opaque-2 Corn and Normal Corn for Growing Swine

G. Cromwell, V. Hays, C. Marroquín, 1973 .

Application of the protein depletion-repletion technique in baby pig feeding experiments. I. A comparison of levels and sources of protein for baby pigs.

V. C. Speer, E. R. Peo, G. Ashton, 1957, The Journal of nutrition.

Hypervitaminosis A in the young pig.

J. Mccall, V. C. Speer, V. Hays, 1966, Journal of animal science.

How many pigs? Statistical power considerations in swine nutrition experiments.

D K Aaron, V W Hays, D. K. Aaron, 2004, Journal of animal science.

Swine and Beef Producer Evaluation of Handling, Transportation, and Other Management Factors11Partially supported by agric. res. funds administered by the Pennsylvania Dept. of Agric. and the Pennsylvania Agric. Exp. Sta.

E. E. Hatfield, V. Hays, D. L. Smith, 1998 .

Effect of protein-energy relationships on the performance and carcass quality of growing swine.

V. C. Speer, V. Hays, A. J. Clark, 1963 .

Lysine Supplementation of Corn- and Barley-Base Diets for Growing-Finishing Swine

V. C. Speer, H. E. Nielsen, V. Hays, 1963 .

Effects of copper sulfate and ferrous sulfide on performance and liver copper and iron stores of pigs.

G. Cromwell, V. Hays, T. J. Prince, 1979, Journal of Animal Science.

Lysine and Methionine Supplementation of Corn-Soybean Oil Meal Rations for Pigs in Drylot

V. Hays, D. Catron, D. Acker, 1959 .

Studies on the utilization of urea by growing swine.

V. C. Speer, G. Ashton, V. Hays, 1957 .

Effect of saccharin and sucrose on the performance of young pigs.

V. C. Speer, V. Hays, D. Catron, 1961 .

Nutritive value and digestibility of opaque-2 and normal corn for growing pigs.

G. Cromwell, V. Hays, D. Sihombing, 1969 .

Effect of chlortetracycline on the spread of R-100 plasmid-containing Escherichia coli BEL15R from experimentally infected pigs to uninfected pigs and chicks.

G. Cromwell, B. E. Langlois, V. Hays, 1984, Journal of animal science.

The vitamin A requirement of the young pig.

V. C. Speer, V. Hays, D. Frape, 1959, Journal of NutriLife.