Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

Journal

Kansas Agricultural Experiment Station Research Reports

Animal Sciences

1987

Keyword

Articles 31 - 60 of 87

Full-Text Articles in Life Sciences

Effects Of Rumensin® Ruminal Delivery Devices In Grazing Cattle On Subsequent Feedlot Performance, Jack G. Riley, B. Cochran, Ronald V. Pope Jan 1987

Effects Of Rumensin® Ruminal Delivery Devices In Grazing Cattle On Subsequent Feedlot Performance, Jack G. Riley, B. Cochran, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Rumensin® Ruminal Delivery Devices put in place 76 days prior to steers entering a feedlot resulted in an average reduction in daily dry matter intake of 3.6% and a small 1.8% increase in daily gain during a controlled 28-day feeding phase. All steers were fed an 85% concentrate feedlot diet fortified with 30g/ton of Rumensin® and 10 g/ton of tylan®.

Go to article

Calving And Reproductive Performance Of Angus X Hereford And Brahman X Hereford Heifers Fed To Prebreeding Target Weights, D.J. Patterson, L.R. Corah, J.R. Brethour, W.R. Negus Jan 1987

Calving And Reproductive Performance Of Angus X Hereford And Brahman X Hereford Heifers Fed To Prebreeding Target Weights, D.J. Patterson, L.R. Corah, J.R. Brethour, W.R. Negus

Kansas Agricultural Experiment Station Research Reports

The effect of heifer development on first calving and subsequent reproductive performance was evaluated in Angus x Hereford (AxH) and Brahman x Hereford (BxH) females. Heifers were fed to reach either 55% or 65% of their projected mature body weight by the start of their first breeding season. After breeding, the heifers were managed as a typical commercial range beef cow herd. Angus x Hereford heifers developed to the higher prebreeding target weights: 1) were heavier (P<.05) at calving; 2) had larger (P<.05) total precalving pelvic areas; and 3) had higher (P<.05) average postcalving body condition scores. Precalving pelvic areas were also greater (P<.05) among BxH females developed to the higher prebreeding target weight. Angus x Hereford heifers fed to the low target weight experienced 23.5% more calving problems (52.3 vs 28.8%). Only 11.3% of the BxH heifers required assistance at calving, and calving difficulty was not related to nutritional level. Postpartum interval to estrus (PPJ) was longer among low target AxH heifers, but not in BxH heifers. Calf weaning weight was not affected by heifer development; however, weights were heavier for calves raised by the BxH heifers. These data suggest that differences in weight and condition prior to first breeding persist through to the heifer's first calving and postpartum period.

Go to article

Effect Of Commercial Inoculants On The Fermentation Of Alfalfa, Corn, Forage Sorghum, And Triticale Silages, K. Bolsen, H. Ilg, A. Laytimi, R. Hart, V. Chain, L. Nuzback, Daniel Y.C. Fung Jan 1987

Effect Of Commercial Inoculants On The Fermentation Of Alfalfa, Corn, Forage Sorghum, And Triticale Silages, K. Bolsen, H. Ilg, A. Laytimi, R. Hart, V. Chain, L. Nuzback, Daniel Y.C. Fung

Kansas Agricultural Experiment Station Research Reports

Fourteen commercial inoculants were evaluated in seven trials using alfalfa, corn, forage sorghum, and triticale silages. Microbial profiles of the inoculants and of the crops differed widely. Viable lactic acid bacteria (LAB) supplied per gram of fresh crop by the inoculants ranged from less than 103 to over 103. Only the alfalfas had 10 or fewer LAB per gram of crop when the forages were treated and as a result, fermentation responses were excellent for those inoculants that supplied 10 or more LAB per gram of treated crop. Corn and triticale underwent a very rapid fermentation rate with very little …

Go to article

Effect Of Bovatec® Level In Supplemental Feed On Performance And Forage Utilization Characteristics Of Wintering Beef Cattle, R.C. Cochran, L.R. Corah, K.A. Jacques, T.B. Avery, K.O. Zoellner, J.F. Higginbotham Jan 1987

Effect Of Bovatec® Level In Supplemental Feed On Performance And Forage Utilization Characteristics Of Wintering Beef Cattle, R.C. Cochran, L.R. Corah, K.A. Jacques, T.B. Avery, K.O. Zoellner, J.F. Higginbotham

Kansas Agricultural Experiment Station Research Reports

Various levels of lasalocid (Bovatec®) added to a protein supplement did not improve weight or condition change of beef cows grazing poor quality winter pasture. Similarly, calf birth weight and most forage utilization characteristics (e.g., intake, passage rate, and fermentation characteristics) were not altered by Bovatec level. Although forage digestibility was influenced by Bovatec level, changes were not sufficient to influence performance characteristics.

Go to article

Additive-Treated Corn Silages For Growing Cattle, K. Bolsen, H. Ilg, B. Kirch, A. Laytimi, Lyle W. Lomas Jan 1987

Additive-Treated Corn Silages For Growing Cattle, K. Bolsen, H. Ilg, B. Kirch, A. Laytimi, Lyle W. Lomas

Kansas Agricultural Experiment Station Research Reports

Whole-plant corn silages were treated with USO3M or Silo-Best Soluble® in one trial and with Garst M-74® in a second trial. In Trial 1 all three silages were well preserved and moderately stable in the air. USO3M silage lost less dry matter during fermentation than control or Silo-Best silages. Cattle fed the USO3M silage made 7.6% faster gains and were 5.2% more efficient than those fed the control silage. Cattle performance with the Silo-Best Soluble and control silages was similar. In trial 2, heifer gains were nearly identical for both control and Garst M-74 silages.

Go to article

Grazing And Feedlot Performance Of Heifers Spayed By Two Methods, S.B. Laudert, Gerry L. Kuhl, A.J. Edwards Jan 1987

Grazing And Feedlot Performance Of Heifers Spayed By Two Methods, S.B. Laudert, Gerry L. Kuhl, A.J. Edwards

Kansas Agricultural Experiment Station Research Reports

Two field trials were conducted to compare the pasture and finishing performance of heifers spayed by the Kimberling-Rupp(K-R) technique or by flank spaying plus autografting a piece of ovarian tissue into the rumen wall (FS+A). In trial 1, neither spaying method resulted in gains of grazing heifers different from that of intake controls; however, FS+A heifers gained 5.1% faster than K-R spayed heifers. In trial 2, grazing gains of heifers spayed by the two techniques were similar. During the finishing phase, no performance difference was found among intact, K-R, or FS+A heifers in trial 1 or between K-R and FS+A …

Go to article

Effect Of Stocker Receiving Diet On Subsequent Pasture Gains, F. Brazle, Gerry L. Kuhl, D. Harmon Jan 1987

Effect Of Stocker Receiving Diet On Subsequent Pasture Gains, F. Brazle, Gerry L. Kuhl, D. Harmon

Kansas Agricultural Experiment Station Research Reports

Seven diets were fed for 27 days to newly arrived heifers to evaluate their impact on stocker gains during the receiving and pasture periods. The diets were as follows: soybean hulls plus soybean meal; suncured alfalfa plus wheat middlings; dehydrated alfalfa plus grain sorghum; distillers dried grain plus cottonseed hulls; brome hay plus 2 lb protein supplement/day; prairie hay plus 2 lb protein supplement/day; and a commercial receiving ration. During the receiving period, diets of soybean hulls plus soybean meal, distillers dried grain plus cottonseed hulls, and the commercial receiving ration produced the highest cattle gains. The soybean hull plus …

Go to article

Influence Of Rumen Bypass Fat Fed In A Range Supplement On The Performance Of Cows And Calves Grazing Bluestem Range, L. Corah, B. Cochran, D. Harmon, T. Goehring Jan 1987

Influence Of Rumen Bypass Fat Fed In A Range Supplement On The Performance Of Cows And Calves Grazing Bluestem Range, L. Corah, B. Cochran, D. Harmon, T. Goehring

Kansas Agricultural Experiment Station Research Reports

Adding rumen bypass fat to a range supplement reproductive characteristics, cow weight and condition performance during a 43-day postpartum feeding period.

Go to article

Effect Of Supplemental Protein:Energy Ratio On The Intake, Digestibility, Fill, And Turnover Of Dormant Bluestem Range-Grasses, T. Delcurto, R.C. Cochran, K.A. Jacques, D.L. Harmon, G. Towne, T.B. Avery, E.S. Vanzant Jan 1987

Effect Of Supplemental Protein:Energy Ratio On The Intake, Digestibility, Fill, And Turnover Of Dormant Bluestem Range-Grasses, T. Delcurto, R.C. Cochran, K.A. Jacques, D.L. Harmon, G. Towne, T.B. Avery, E.S. Vanzant

Kansas Agricultural Experiment Station Research Reports

Feeding a low crude protein (12%) supplement depressed dormant bluestem range-grass fiber digestibility, whereas moderate (27%) and high (41 %) protein supplementation maintained forage digestibility and encouraged intake. Increased intake for moderate and high protein groups appeared to be associated with increased rumen dry matter and indigestible fiber fill.

Go to article

Periparturient Disorders In Dairy Cows (1987), Jeffrey S. Stevenson Jan 1987

Periparturient Disorders In Dairy Cows (1987), Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

The economic climate in the dairy industry requires producers to operate efficiently to remain competitive. Attention to details and understanding of reproduction, metabolism, digestive functions, milk secretion, and all aspects of husbandry are essential. To be successful, producers must minimize reproductive failure because reproductive performance affects the quantity of milk produced per cow per day of herd life, the number of potential replacements needed to maintain a constant herd size, and the longevity of the cow in the herd. In practice, this translates into well-designed programs of herd health, milking, feeding, and reproductive management that minimize involuntary culling of. problem …

Go to article

Feeding And Managing Early Lactation Cows (1987), James R. Dunham Jan 1987

Feeding And Managing Early Lactation Cows (1987), James R. Dunham

Kansas Agricultural Experiment Station Research Reports

Feeding and managing dairy cows during the prepartum and early lactation periods have more effect on total lactation yields than all other factors. It is during this time that the pattern of milk production is established for the entire lactation. The full production potential of high producing cows cannot be realized unless these periods are given special consideration.; Dairy Day, 1987, Kansas State University, Manhattan, KS, 1987;

Go to article

Effect Of Ruminal Protozoa On Performance Of Early-Weaned Calves (1987), K.L. Anderson, Tiruvoor G. Nagaraja, J.L. Morrill, P.G. Reddy Jan 1987

Effect Of Ruminal Protozoa On Performance Of Early-Weaned Calves (1987), K.L. Anderson, Tiruvoor G. Nagaraja, J.L. Morrill, P.G. Reddy

Kansas Agricultural Experiment Station Research Reports

Twenty newborn bull calves assigned to two groups, protozoa-free or protozoa-inoculated, were used to determine the effects of ruminal protozoa on performance of early weaned calves. Calves in the protozoa group were inoculated via stomach tube with a suspension of ruminal protozoa at weekly intervals until a viable population was established. Calves were evaluated weekly for weight gain and feed intake. Feed intake and weight gain were not significantly different between the groups but tended to be higher in protozoa-inoculated than protozoa-free calves.; Dairy Day, 1987, Kansas State University, Manhattan, KS, 1987;

Go to article

Rumensin For The Lactating Dairy Cow (1987), J.C. Kube, R.A. Frey, John E. Shirley Jan 1987

Rumensin For The Lactating Dairy Cow (1987), J.C. Kube, R.A. Frey, John E. Shirley

Kansas Agricultural Experiment Station Research Reports

Two Holstein cows were fed Rumensin for 12 weeks, beginning approximately 90 days postpartum. Milk production increased 7%, whereas percentage fat in milk decreased 10.3%. Percentage protein in milk increased 9.6% in the early stages and decreased 10.2% in the late stages of the study. Daily fat yield did not change, whereas protein yield increased in the early stages, but did not change in later stages. Fat corrected milk (FCM) did not change with treatment, but dry matter intake (DMI) tended to increase when Rumensin was fed. Acetate concentration did not change whereas propionate concentration increased, causing a significant decrease …

Go to article

Effect Of Maturity At Harvest On Yield, Composition, And Feeding Value Of Forage And Grain Sorghum Silages, S. Hamma, B. Kirch, B. Downey, J. White, K. Bolsen Jan 1987

Effect Of Maturity At Harvest On Yield, Composition, And Feeding Value Of Forage And Grain Sorghum Silages, S. Hamma, B. Kirch, B. Downey, J. White, K. Bolsen

Kansas Agricultural Experiment Station Research Reports

In the last 2 years, three trials were conducted to determine the influence of hybrid and stage of maturity at harvest on silage yield, composition, and nutritive value for 15 forage and nine grain sorghum hybrids. Agronomic data, such as days to half bloom, plant height, and whole-plant dry matter (OM) and grain yields, were also obtained. In Trial 1, Pioneer 947, Acco Paymaster 351, and DeKalb 25E forage sorghum hybrids had different whole-plant OM and crude protein (CP) contents. Whole-plant OM increased, whereas CP generally decreased with advancing maturity. Hybrid affected both DM intake and CP digestibility. Results indicated …

Go to article

Effect Of Limited-Creep Feeding Calves Of Spring-Calving Cows Grazing Native Grass, F. Brazle, Gerry L. Kuhl, L. Corah, K. Zoellner Jan 1987

Effect Of Limited-Creep Feeding Calves Of Spring-Calving Cows Grazing Native Grass, F. Brazle, Gerry L. Kuhl, L. Corah, K. Zoellner

Kansas Agricultural Experiment Station Research Reports

Two limited-creep feeding trials were conducted with spring-born, suckling calves on native grass. The high-energy creep rations containing an ionophore were fed during the last 63 or 85 days before weaning in the two trials. Creep intake was limited with salt to about 1.5 lb per calf daily. Calves consuming the limited-creep feeds gained .26 to .31 lb more per head daily and required 4.4 to 5.5 lb of creep per lb of extra weaning weight.

Go to article

The Value Of Drip Versus Spray Cooling At Two Flow Rates To Reduce Heat Stress Of Finishing Swine (1987), David A. Nichols, R C. Thaler, James P. Murphy, Robert H. Hines, Jim L. Nelssen Jan 1987

The Value Of Drip Versus Spray Cooling At Two Flow Rates To Reduce Heat Stress Of Finishing Swine (1987), David A. Nichols, R C. Thaler, James P. Murphy, Robert H. Hines, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

One hundred fifty pigs were used to evaluate the effectiveness of either spray cooling or drip sprinkling to reduce heat stress in finishing swine. In addition, water flow rates of .2 gal/pig/hr and .4 gal/pig/hr were compared. All wetting treatments significantly (P<.01) improved average daily gain and feed intake (P<.05) compared with non-wetted control. No differences were observed in feed to gain ratio among treatments. Drip sprinkling at the higher flow rate resulted in performance equal to that with intermittent spray cooling at both flow rates.; Swine Day, Manhattan, KS, November 19, 1987

Go to article

How Important Is Extra Solids-Not-Fat In Your Milk? (1987), H.A. Roberts Jan 1987

How Important Is Extra Solids-Not-Fat In Your Milk? (1987), H.A. Roberts

Kansas Agricultural Experiment Station Research Reports

Milk with high solids-not-fat is valuable to the consumer for its flavor and nutritional value and to the manufacturer of milk products, especially relating to cheese yield. Solids-not-fat consists of all solids in milk other than fat. Protein is the most important component of milk because of its nutritional value and its functional properties. Other components, such as milk fat and lactose, also contribute to milk quality and impart certain characteristics to milk products but to a lesser degree.; Dairy Day, 1987, Kansas State University, Manhattan, KS, 1987;

Go to article

Dry Cow Management Program (1987), John F. Smith Jan 1987

Dry Cow Management Program (1987), John F. Smith

Kansas Agricultural Experiment Station Research Reports

Dry cows do not require the intensive daily management of cows in early lactation, but the handling of mastitis treatments, feeding regimen, and grouping are of utmost importance in determining how the cows will perform in the subsequent lactation. The dry period is the time we allow for the cow to regenerate milk-secreting tissue, combat mastitis, and prepare for the next lactation. The body condition of each cow should be moderate before drying off. Each quarter should be treated with a commercial dry cow mastitis treatment, then the cow should be separated from the milking herd for observation and fed …

Go to article

Raw Soybeans As A Protein Source For Growing Cattle, S. Anderson, Robert T. Brandt Jr. Jan 1987

Raw Soybeans As A Protein Source For Growing Cattle, S. Anderson, Robert T. Brandt Jr.

Kansas Agricultural Experiment Station Research Reports

A 60-day growth trial with 170 exotic crossbred steers (avg. wt. 626 lbs) was conducted to assess the value of raw soybeans in silage-based diets. Protein supplements were based on 1) urea, 2) urea plus soybean oil (SBO), 3) soybean meal (SBM), 4) SBM plus SBO, 5) rolled (RSB), and 6) whole (WSB) soybeans. Soybean oil was added to treatments 2 and 4 in amounts equivalent to that contributed from raw soybeans. Total diets were 11.5% crude protein. Steers fed SBM gained faster (P<.05) and consumed more feed than those fed RSB or WSB. However, SBO added back to the SBM diet resulted in performance similar to that of steers fed RSB or WSB (P=.47). This suggests that the protein value of SBM and raw soybeans was similar, but that small increments (less than 2% of diet dry matter) of soybean lipid inhibited ruminal diet digestion and(or} utilization. There was no advantage for rolling raw soybeans vs. feeding them whole (P=.45). Costs of gain were urea

Go to article

Performance Of Early Weaned Calves Fed Lasalocid (1987), K.L. Anderson, Tiruvoor G. Nagaraja, J.L. Morrill, P.G. Reddy Jan 1987

Performance Of Early Weaned Calves Fed Lasalocid (1987), K.L. Anderson, Tiruvoor G. Nagaraja, J.L. Morrill, P.G. Reddy

Kansas Agricultural Experiment Station Research Reports

Twenty-two newborn, bull calves were used to determine the effects of lasalocid on growth and feed intake of early-weaned calves from week 1 to 12. Calves were assigned to lasalocid or control groups on day 3. Lasalocid-fed group received lasalocid in milk from day 4 to 7 and in milk and pre-starter from days 7 to 14 and in starter feed from weeks 2 to 12. Lasalocid-fed calves had a significantly higher feed consumption and greater weight gain than calves that did not receive lasalocid. The difference became apparent only after 6 wk of age. Lasalocid appears to be a …

Go to article

Update On Gonadotropin-Releasing Hormone Treatments For Repeat Breeders (1987), Jeffrey S. Stevenson Jan 1987

Update On Gonadotropin-Releasing Hormone Treatments For Repeat Breeders (1987), Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

In three of six studies involving over 1,650 cows, treatment of lactating dairy cows with 100 µg GnRH (2 cc Cystorelin®) at the time of third or fourth insemination improved conception rates by 12 percentage points. When all six studies are considered, rates improved by 10 percentage points. These data provide strong evidence for continued use of GnRH at the time of insemination for repeat breeders.; Dairy Day, 1987, Kansas State University, Manhattan, KS, 1987;

Go to article

Characteristics Of Preblended Pork During Cooler Storage (1987), Curtis L. Kastner, Y I. Choi, Donald H. Kropf Jan 1987

Characteristics Of Preblended Pork During Cooler Storage (1987), Curtis L. Kastner, Y I. Choi, Donald H. Kropf

Kansas Agricultural Experiment Station Research Reports

Five pork carcasses were used to determine the effects of hot boning and various combinations of salt (0, 1.5, or 3.0%) and a phosphate mixture (0 or 0.5%) on bacteria, TBA (measure of fat rancidity), and pH values of preblended pork (preblends). In both HB (hot boned within 2 hr postmortem) and CB (conventionally boned at 24 hr postmortem) preblends, salt increased (P<.05) TBA values (indicates increased rancidity) and decreased (P<.05) growth of psychrotrophic bacteria, whereas phosphate increased (P<.05) pH and decreased TBA values. Salt levels could be reduced from 3.0 to 1.5% in preblends without storage problems, if phosphate (0.5%) was included. Phosphate (mixture pH 7.2) had little influence on microbial growth of preblends during cooler storage.; Swine Day, Manhattan, KS, November 19, 1987

Go to article

Effects Of Pneumo-Guard H® And Vitamin E On Gain And Health Of Stockers Purchased As Steers And Bulls, F. Brazle Jan 1987

Effects Of Pneumo-Guard H® And Vitamin E On Gain And Health Of Stockers Purchased As Steers And Bulls, F. Brazle

Kansas Agricultural Experiment Station Research Reports

Pneumo-Guard H® and injectable Vitamin E did not improve cattle gain or reduce treatments required per animal during a 29-day receiving trial. Stockers purchased as steers gained faster (P<.001) and required fewer (P<.001) treatments per animal than bulls castrated on arrival.

Go to article

Efficacy Of Depo-Mga® In Feedlot Heifers, Jack G. Riley, Ronald V. Pope, L. O'Neill Jan 1987

Efficacy Of Depo-Mga® In Feedlot Heifers, Jack G. Riley, Ronald V. Pope, L. O'Neill

Kansas Agricultural Experiment Station Research Reports

Three levels of melengestrol acetate (30, 60, and 90 mg) injected subcutaneously as a liquid (DEPO-MGA ®) in the ear of heifers yielded high performance results comparable to feeding 0.5 mg of MGA per head daily. Heifers fed 0.5 mg MGA daily gained 6% faster and were 11% more efficient than heifers not receiving MGA. This study will be pooled with trials from 13 other locations in the U.S. to determine if further development and FDA clearance of DEPO-MGA ® will be pursued by the Upjohn Company.

Go to article

Whole-Plant Forage And Grain Sorghum Silages For Growing Cattle, B. Kirch, S. Hamma, K. Bolsen, H. Ilg, J. Hoover Jan 1987

Whole-Plant Forage And Grain Sorghum Silages For Growing Cattle, B. Kirch, S. Hamma, K. Bolsen, H. Ilg, J. Hoover

Kansas Agricultural Experiment Station Research Reports

Four trials were conducted to determine the feeding value of whole-plant forage and grain sorghum silages. In general, growing cattle fed grain sorghum hybrids (NK2778, Funk's 550, DeKalb 42Y, DeKalb E67) out performed those fed forage sorghum silages. Only moderate to high grain-content, forage sorghums (Buffalo Canex, Pioneer 947, Acco 351) gave performances that approached the grain sorghums. Low grain-content and nonheading forage sorghums (DeKalb 25E, Funk's G-1990) resulted in the poorest cattle performance. These studies indicate that grain content of a sorghum silage is the major determinant of cattle performance and that whole-plant grain sorghums should produce the fastest …

Go to article

1987 Agricultural Research, Southeast Kansas Branch Station, L. W. Lomas, K. W. Kelley, J. L. Moyer, D. W. Sweeney Jan 1987

1987 Agricultural Research, Southeast Kansas Branch Station, L. W. Lomas, K. W. Kelley, J. L. Moyer, D. W. Sweeney

Kansas Agricultural Experiment Station Research Reports

Research on beef cattle and crops at Southeast Kansas Branch Station.

Go to article

Apramycin For The Early-Weaned Pig (1987), Jim L. Nelssen, G L. Allee, R C. Thaler, W H. Turlington Jan 1987

Apramycin For The Early-Weaned Pig (1987), Jim L. Nelssen, G L. Allee, R C. Thaler, W H. Turlington

Kansas Agricultural Experiment Station Research Reports

A total of 108 21-day-old pigs, weighing less than 10 lb, were utilized in two, 28-day trials to compare the effects of feeding high nutrient-density diets with either added apramycin, neomycin, or carbadox on pig performance. In Tria1, pigs fed the diet containing Apralan® gained slightly faster and were more efficient (P<.05) than pigs fed neomycin during the first 14 days postweaning. There were no differences in pig performance in Trials I or II for the entire 28-day period. Two additional 28-day on-farm studies using a total of 427, 21-day old pigs were conducted, feeding a high nutrient-density diet medicated with either apramycin or neomycin plus terramycin. In both on-farm trials, pigs fed apramycin gained faster (P<.05) than pigs fed neomycin plus terramycin for the initial 14 days post weaning. In the second on-farm trial, feed intake was higher (P<.09) during the first 14 days for pigs fed apramycin. Additionally, pigs fed diets medicated with apramycin were slightly heavier (1. 7 and 1.5 additional pounds for the first and second on-farm trials, respectively) at 28 days post weaning compared to pigs fed neomycin plus terramycin. These results indicate that apramycin will improve the performance of early-weaned pigs fed high nutrient-density diets compared to other feed medications.; Swine Day, Manhattan, KS, November 19, 1987

Go to article

Effect Of Protein And/Or Carbohydrate Fractions Of Dried Whey On Performance And Nutrient Digestibility Of Weanling Pigs (1987), Michael D. Tokach, Jim L. Nelssen, G L. Allee Jan 1987

Effect Of Protein And/Or Carbohydrate Fractions Of Dried Whey On Performance And Nutrient Digestibility Of Weanling Pigs (1987), Michael D. Tokach, Jim L. Nelssen, G L. Allee

Kansas Agricultural Experiment Station Research Reports

One hundred and eighty 3-wk old pigs (initial weight 10.6 lb) were utilized in a 35-day growth trial to determine the effects of the carbohydrate and/or protein fractions of dried whey on pig performance. In addition, 30 3-wk-old pigs (initial weight 10.8 lb) were used in two digestion trials to study the effects of the whey fractions on nutrient digestibility. Dietary treatments included a corn-soybean meal control (CON), control + 20% dried whey (WHE), control + 14% lactose (CHO), control + 2.1% lactalbumin (PRO), control + 14% lactose + 2.1% lactalbumin (CHO + PHD), and control + 8.4% whey protein …

Go to article

Further Studies Utilizing Hormones To Alter Estrous Cycles And Fertility (1987), Jeffrey S. Stevenson, R.E. Stewart, Edward P. Call Jan 1987

Further Studies Utilizing Hormones To Alter Estrous Cycles And Fertility (1987), Jeffrey S. Stevenson, R.E. Stewart, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

In one large dairy herd, we examined the reproductive performance of 943 cows following early postpartum hormonal therapy utilizing gonadotropin-releasing hormone (GnRH or Cystorelin®) and prostaglandin F2-α (PGF). None of our hormonal treatments improved reproductive efficiency in this herd, whereas earlier studies at the KSU Dairy Teaching and Research Center had proved beneficial. However, cows given PGF to induce estrus at the beginning of the breeding period had similar reproductive performance to control cows, suggesting a potential use for one injection of PGF to allow the breeding of more cows by a target date after calving (e.g., by 65 days).; …

Go to article

Use Of Extruded Soy Flour In Milk Replacers For Calves (1987), D.P. Dawson, J.L. Morrill, P.G. Reddy, Keith C. Behnke Jan 1987

Use Of Extruded Soy Flour In Milk Replacers For Calves (1987), D.P. Dawson, J.L. Morrill, P.G. Reddy, Keith C. Behnke

Kansas Agricultural Experiment Station Research Reports

Oil-extracted, desolveritized soy flour without additional heat treatment was used to prepare protein supplements for calf milk replacers by extrusion processing. Various combinations of temperature, moisture, calcium concentration, sulfur, and acid were used to prepare 32 different products. These products were tested for trypsin inhibitor and antigenic activity and the most promising one was chosen for further testing. This product alone or with supplementary amino acids or amino acids and citric acid was used to provide 70% of the protein in experimental milk replacers. These replacers were compared to an all-milk replacer, using growth and metabolic responses of young Holstein …

Go to article

First Prev Next Last