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Kansas Agricultural Experiment Station Research Reports

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1987

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Articles 31 - 60 of 87

Full-Text Articles in Life Sciences

Update On Heat Detection Aids (1987), Jeffrey S. Stevenson, Edward P. Call Jan 1987

Update On Heat Detection Aids (1987), Jeffrey S. Stevenson, Edward P. Call

Kansas Agricultural Experiment Station Research Reports

Poor heat detection is a major cause of reproductive failure in most dairy herds. About one-half of the heat periods are undetected, resulting in prolonged calving intervals. In many cases, the problem is serious enough that some producers have compromised their breeding goals by utilizing natural mating exclusively or maintaining clean-up bulls. The result of these compromises means loss in genetic superiority of future replacement heifers and the potential for serious injury or death of farm help or family.; Dairy Day, 1987, Kansas State University, Manhattan, KS, 1987;

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Cow-Side Milk Progesterone Testing, Edward P. Call, Jeffrey S. Stevenson Jan 1987

Cow-Side Milk Progesterone Testing, Edward P. Call, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Cow-side milk progesterone tests are effective in determining the presence of an active corpus luteum (CL) on the ovary. The test is best used as an adjunct to the Preventive Herd Health Program (PHHP) as a means of identifying cows that have not yet been detected in heat and are candidates for synchronization with prostaglandin (PGF). Several test kits are on the market, and all involve similar chemical principles. However, each test has its own protocol, so read and follow directions EXACTLY. A "control" or "sample" must be run with each test for comparison.; Dairy Day, 1987, Kansas State University, …

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Effect Of Select Menhaden Fish Meal And Dried Whey In Starter Diets For Pigs (1987), G R. Stoner, G L. Allee, Jim L. Nelssen, M E. Johnston Jan 1987

Effect Of Select Menhaden Fish Meal And Dried Whey In Starter Diets For Pigs (1987), G R. Stoner, G L. Allee, Jim L. Nelssen, M E. Johnston

Kansas Agricultural Experiment Station Research Reports

A growth trial was conducted to examine the effects of select menhaden fish meal (SMFM) and dried whey (DW) in starter diets for pigs. A total of 240, 3-wk-old, weaned pigs averaging 12.1 lb were utilized. Pigs did not receive creep feed and were introduced to the experimental diets immediately upon weaning. The trial was conducted for 4 wk. A factorial design with 3 levels of SMFM (0, 4, and 8%) and 2 levels of OW (10 and 20%) was employed. Analysis of the data indicated no SMFM x DW interaction by the end of wk 4. Inclusion of SMFM …

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Assessing Swine Enterprise Efficiency With Computerized Records (1987), D E. Orr Jr Jan 1987

Assessing Swine Enterprise Efficiency With Computerized Records (1987), D E. Orr Jr

Kansas Agricultural Experiment Station Research Reports

Successful swine producers must be adaptable, utilize new technology, and know their herd production levels and costs if they want to alter those production factors that have an economic impact. A summary of the effect of various production factors on swine profitability is presented, using actual herd data in composite form. These data illustrate the production and financial impact that today's technology will have on future swine production units.; Swine Day, Manhattan, KS, November 19, 1987

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Characteristics Of Aerial Dust In Finishing Buildings (1987), A J. Heber, M Stroik Jan 1987

Characteristics Of Aerial Dust In Finishing Buildings (1987), A J. Heber, M Stroik

Kansas Agricultural Experiment Station Research Reports

Eleven finishing units were surveyed to study the characteristics of aerial dust and factors that influence dust concentrations. Feed dust was the major portion of the total dust mass and can be minimized with feed additives, less feed wastage, enclosed feed delivery, and periodic cleaning. Ventilation was the primary method for dust removal. Naturally ventilated buildings had higher dust concentrations than mechanically ventilated buildings because of lower average airflow rates, especially during cold weather. Swine workers can minimize respiratory symptoms by wearing face masks.; Swine Day, Manhattan, KS, November 19, 1987

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Concepts And Concerns In Remodeling Swine Facilities (1987), P Murphy Jan 1987

Concepts And Concerns In Remodeling Swine Facilities (1987), P Murphy

Kansas Agricultural Experiment Station Research Reports

Shall I remodel or burn it down? Determining an answer to this question requires careful consideration of construction costs and production goals. When considering a particular building - consider the following:; Swine Day, Manhattan, KS, November 19, 1987

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

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

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Evaluating Serving Capacity Of Yearling Beef Bulls - A Field Trial (1987), G. Boyd, L. Corah Jan 1987

Evaluating Serving Capacity Of Yearling Beef Bulls - A Field Trial (1987), G. Boyd, L. Corah

Kansas Agricultural Experiment Station Research Reports

Results from two trials showed that serving capacity (SC) can be successfully evaluated in yearling beef bulls under field conditions and is influenced by sire line (P<.01). Also, providing sexual experience to low SC yearling bulls can improve SC and should be a standard part of the test. Scrotal circumference and breeding soundness examination scores, both traditional measures of bull fertility, were unrelated to SC.

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Compudose® Vs Ralgro®/Synovex-S® Or Synovex-S®/Synovex-S® Reimplant Programs For Finishing Yearling Steers (1987), S.B. Laudert, R.W. Lee Jan 1987

Compudose® Vs Ralgro®/Synovex-S® Or Synovex-S®/Synovex-S® Reimplant Programs For Finishing Yearling Steers (1987), S.B. Laudert, R.W. Lee

Kansas Agricultural Experiment Station Research Reports

Three field trials were conducted with finishing yearling steers to compare the performance of cattle receiving Compudose® or Ralgro®/Synovex-S® and Synovex-S®/Synovex-S® reimplant combinations. No differences were found between Compudose and the reimplant programs in cattle daily gain, feed efficiency, or cost of gain. Compudose retention was 97.5% in the 1317 head implanted. Synovex-S implant site abscess rate ranged from 5.7 to 15.4%.

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Comparative Feeding Value Of Grain Sorghum And Corn In Beef Cattle Diets (1987), G. Goldy, K. Bolsen, Jack G. Riley Jan 1987

Comparative Feeding Value Of Grain Sorghum And Corn In Beef Cattle Diets (1987), G. Goldy, K. Bolsen, Jack G. Riley

Kansas Agricultural Experiment Station Research Reports

Homozygous yellow endosperm grain sorghum had no advantage in feeding value over heterozygous yellow endosperm hybrids (P>.05). A heterozygous yellow endosperm hybrid, Funk's 550, had larger kernels (P<.001) and when dry rolled, produced more fine particles (P<.01). This may explain its trend toward improved feed efficiency, higher DM digestibility, and greater in vitro VFA production compared with the other dry processed grain sorghum hybrids tested. Our results do not support the traditional 12 to 16% price discount for grain sorghum relative to corn.

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Influence Of Mixtures Of High Moisture Corn And Dry Rolled Wheat On Finishing Performance And Carcass Characteristics (1987), B.J. Bock, Robert T. Brandt Jr., D.L. Harmon Jan 1987

Influence Of Mixtures Of High Moisture Corn And Dry Rolled Wheat On Finishing Performance And Carcass Characteristics (1987), B.J. Bock, Robert T. Brandt Jr., D.L. Harmon

Kansas Agricultural Experiment Station Research Reports

Dry rolled wheat and high moisture corn were fed singly and in three combinations in a 132-day finishing trial. Daily gain, feed intake, and final live weight were greatest on the 75% corn:25% wheat diet. Feed efficiencies and carcass characteristics were not affected by grain combination. Daily gain and feed intake tended to decrease as percentage of wheat in the diet increased above 25%.

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Detection Of Elastin, Collagen, And Cartilage Particles In Ground Beef By Enzyme Digestion And Sensory Analysis (1987), G. Whipple, J.B. Axe, S. Goll, Curtis L. Kastner Jan 1987

Detection Of Elastin, Collagen, And Cartilage Particles In Ground Beef By Enzyme Digestion And Sensory Analysis (1987), G. Whipple, J.B. Axe, S. Goll, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

An enzyme digestion technique was developed using a proteolytic enzyme concentrate to quantitate connective tissue particles in ground beef samples, which had been formulated to contain various amounts of connective tissue. Replicate samples were also evaluated by a taste panel to quantify detectable connective tissue particles. Results for the laboratory enzyme technique and the taste panel were highly correlated. Therefore, the enzyme digestion technique can be used to estimate total connective tissue in ground beef and those particles that are detected upon chewing.

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Feeding Value Of Wheat And Sorghum Grain As Indicated By Absorbed Nutrients (1987), K.L. Gross, D.L. Harmon, T.B. Avery Jan 1987

Feeding Value Of Wheat And Sorghum Grain As Indicated By Absorbed Nutrients (1987), K.L. Gross, D.L. Harmon, T.B. Avery

Kansas Agricultural Experiment Station Research Reports

Steers fed diets based on dry-rolled wheat or sorghum grain alone or combined (50:50) showed no differences in net portal fluxes of glucose, L-lactate, ammonia, urea, or α-amino nitrogen. Portal blood flow was increased in steers fed the 50:50 diet. Total volatile fatty acid flux into the portal blood tended to be lower for steers fed the sorghum grain diet, which may partially explain the lower feeding value of sorghum grain compared to wheat or the two grains combined.

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Effect Of Sprouting And Weather Damage On Feeding Value Of Grain Sorghum (Summary Of Beef, Swine, And Poultry Trials) (1987), H. Turlington, G. Allee, Jack G. Riley, Ronald V. Pope Jan 1987

Effect Of Sprouting And Weather Damage On Feeding Value Of Grain Sorghum (Summary Of Beef, Swine, And Poultry Trials) (1987), H. Turlington, G. Allee, Jack G. Riley, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Grain sorghum officially graded as 39% damaged (sprouted) with 10% broken kernels or foreign material was fed to beef steers, growing swine, and broilers to compare its feeding value to that of normal grain sorghum. Damaged grain constituted 0, 50, or 100% of the grain portion of the rations. Cattle performance during a 57-day finishing period was not reduced by feeding sprouted grain sorghum. However, the swine and broiler trials suggest that sprouted grain sorghum has a slightly lower energy value.

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Compudose® Compared With Synovex-H® For Finishing Yearling Heifers (1987), S.B. Laudert Jan 1987

Compudose® Compared With Synovex-H® For Finishing Yearling Heifers (1987), S.B. Laudert

Kansas Agricultural Experiment Station Research Reports

Feedlot heifers implanted once with either Compudose® or Synovex-H® performed similarly, with daily gains of 3.16 vs 3.27 lbs, respectively. Compudose retention in the ear was 97.5%. Implant site abscess rate was 2.5% for Compudose and 13.7% for Synovex-H.

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Measurement Of The Binding Properties Of Meat Used In Restructured Beef Products (1987), S.J. Goll, Curtis L. Kastner Jan 1987

Measurement Of The Binding Properties Of Meat Used In Restructured Beef Products (1987), S.J. Goll, Curtis L. Kastner

Kansas Agricultural Experiment Station Research Reports

The dried weight of the material washed from meat surfaces by distilled water closely paralleled the binding strength between meat particles as measured by tensile strength testing. Sponges added to meat pieces during mixing were a poor estimation of protein extraction and binding strength.

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

Raw Soybeans As A Protein Source For Growing Cattle (1987), 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

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Influence Of Ionophore Addition To A High-Concentrate Diet On Net Nutrient Absorption In Steers (1987), D.L. Harmon, K.L. Gross, T.B. Avery Jan 1987

Influence Of Ionophore Addition To A High-Concentrate Diet On Net Nutrient Absorption In Steers (1987), D.L. Harmon, K.L. Gross, T.B. Avery

Kansas Agricultural Experiment Station Research Reports

Feeding the ionophores monensin and lasalocid In a high-concentrate diet resulted in gut tissues utilizing less glucose. Monensin caused less urea to be recycled. The new, experimental ionophore (lCI 139603) resulted in an increased net absorption of acetate. Thus, ionophores may differ in how they execute their effects on feed efficiency.

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Effects Of Energy Level And Lasalocid On Productivity Of Fall-Calving, First-Calf Heifers (1987), T. Goehring, L. Corah, James J. Higgins Jan 1987

Effects Of Energy Level And Lasalocid On Productivity Of Fall-Calving, First-Calf Heifers (1987), T. Goehring, L. Corah, James J. Higgins

Kansas Agricultural Experiment Station Research Reports

Fall-calving, first-calf heifers (136 head) were fed TDN levels approximating 85% or 100% of NRC recommendations, with or without 200 mg/hd/day lasalocid. Those fed the recommended diet gained more weight from 130 days prepartum to calving and showed more improvement in condition score before calving than those on the low-energy diet. After calving, the group fed the recommended energy level lost less weight and condition and had better reproductive performance than the low-energy group. The only effect of lasalocid was to improve calf performance in the low-energy group.

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Relationship Of Age At Puberty And Postpartum Interval To Estrus In Angus X Hereford And Brahman X Hereford Females (1987), D.J. Patterson, L.R. Corah, J.R. Brethour, W.R. Negus Jan 1987

Relationship Of Age At Puberty And Postpartum Interval To Estrus In Angus X Hereford And Brahman X Hereford Females (1987), D.J. Patterson, L.R. Corah, J.R. Brethour, W.R. Negus

Kansas Agricultural Experiment Station Research Reports

Records of age at puberty (AAP) and postpartum interval to estrus (PPI) for heifers calving first at 2 years of age were used to determine the relationship between the two reproductive parameters. In Brahman x Hereford (BxH) females, there was no relationship between AAP and PPJ. In Angus x Hereford (AxH) females, PPI increased as AAP decreased. The data suggest that heifers heavier at weaning reach puberty younger, but PPJ may be longer following their first calving. Heifers larger at weaning may need to be managed differently to improve performance during the first postpartum period.

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Factors Predicting The Probability Of Estrus And Pregnancy (1987), T. Goehring, L. Corah, James J. Higgins Jan 1987

Factors Predicting The Probability Of Estrus And Pregnancy (1987), T. Goehring, L. Corah, James J. Higgins

Kansas Agricultural Experiment Station Research Reports

A statistical analysis was used to determine which live animal traits are useful in predicting reproductive performance in first-calf heifers. Heifer condition score at calving and change in condition score postcalving, calving difficulty score, and milk production were related to the probability of estrus and pregnancy. Condition score at calving had the greatest impact and, to a great extent, moderates the influence of the other traits.

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Calving And Reproductive Performance Of Angus X Hereford And Brahman X Hereford Heifers Fed To Prebreeding Target Weights (1987), 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 (1987), 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.

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Effects Of Mga And Prostaglandin On Estrus Induction And Synchronization In Cows And Heifers (1987), R.C. Perry, G.W. Boyd, T.B. Goehring, L.R. Corah Jan 1987

Effects Of Mga And Prostaglandin On Estrus Induction And Synchronization In Cows And Heifers (1987), R.C. Perry, G.W. Boyd, T.B. Goehring, L.R. Corah

Kansas Agricultural Experiment Station Research Reports

Four trials were conducted to evaluate the effectiveness of Melegestrol Acetate (MGA ®) and prostaglandin (PGF) in inducing and synchronizing estrus. In trial 1, treated heifers were fed MGA for 7 days and given a PGF injection on either the first or last day of MGA feeding. The 7-day estrus response was higher (P<.01) for treated heifers than untreated controls. In trial 2, treated cows were fed MGA for 7 days and given a PGF Injection on the last day of MGA feeding or 13 days after the last day of MGA feeding. The 7-day estrus response was also higher (P<.01) in treated cows. In trial 3, 59 cows were fed MGA for 7 days followed by a PGF injection, and exposed to bulls for 66 days. The MGA-PGF treatment was ineffective in synchronizing estrus and hastening conception. In trial 4, feeding MGA for 7 days successfully synchronized estrus in. cycling cows, but first service conception rates were reduced by 10% in the Kansas study and by 16% in a four state study.

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Effect Of Commercial Inoculants On The Fermentation Of Alfalfa, Corn, Forage Sorghum, And Triticale Silages (1987), 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 (1987), 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 …

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Effect Of Bovatec® Level In Supplemental Feed On Performance And Forage Utilization Characteristics Of Wintering Beef Cattle (1987), 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 (1987), 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.

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Effect Of Environmental Temperature And An Inoculant On The Fermentation Of Forage Sorghum Silage (1987), K. Bolsen Jan 1987

Effect Of Environmental Temperature And An Inoculant On The Fermentation Of Forage Sorghum Silage (1987), K. Bolsen

Kansas Agricultural Experiment Station Research Reports

The inoculants, BioPower®, increased the rate and efficiency of ensiling in Acco Paymaster 351 forage sorghum regardless of storage temperature. The untreated, 60 F silage fermentated slower and had higher pH, lower lactic acid, and higher acetic acid values than its 90 F counterpart.

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Evaluation Of Stocking Rate, Compudose® Implants, And Rumensin® Ruminal Delivery Devices Within Intensive-Early Stocking, R.C. Cochran, Jack G. Riley, Clenton E. Owensby, G. Towne, E.S. Vanzant, Ronald V. Pope Jan 1987

Evaluation Of Stocking Rate, Compudose® Implants, And Rumensin® Ruminal Delivery Devices Within Intensive-Early Stocking, R.C. Cochran, Jack G. Riley, Clenton E. Owensby, G. Towne, E.S. Vanzant, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

Stocking rate in an intensive-early stocking system (1.25, 1.50, or 1.76 acres per steer) did not influence steer gains. Available forage on loamy upland sites was lower after steer removal on July 15 for the highest stocking rate. However, after late season rest, available forage was similar for all stocking rates. Steer gains were consistently greater for groups implanted with Compudose® (estradiol 78β or Compudose plus a Rumensin® (monensin) ruminal delivery device. The Rumensin device alone was successful in increasing average daily gain only at the highest stocking rate.

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Effect Of Maturity At Harvest On Yield, Composition, And Feeding Value Of Forage And Grain Sorghum Silages (1987), 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 (1987), 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 …

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Implant Comparisons In Grazing And Finishing Spayed Heifers (1987), S.B. Laudert, Gerry L. Kuhl, A.J. Edwards Jan 1987

Implant Comparisons In Grazing And Finishing Spayed Heifers (1987), S.B. Laudert, Gerry L. Kuhl, A.J. Edwards

Kansas Agricultural Experiment Station Research Reports

Heifers that were flank-spayed plus rumen-ovarian autografted (FS+A) responded similarly to Ralgro®, Synovex-H®, and Synovex-S® implants on' pasture. Grazing heifers spayed by the Kimberling-Rupp technique also responded similarly to Synovex-H and Synovex-S implants. During the finishing phase, heifers implanted with Synovex-S gained 5.7% faster than heifers implanted with Ralgro, and those implanted with Synovex-H were intermediate in performance. There was no statistical interaction between spaying method and implant treatment during either the grazing or finishing phases.

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Effect Of Several Spaying Methods On Grazing Heifer Gains (1987), Gerry L. Kuhl, T. Goehring, B. Ritter, S. Laudert, W. Mccully Jan 1987

Effect Of Several Spaying Methods On Grazing Heifer Gains (1987), Gerry L. Kuhl, T. Goehring, B. Ritter, S. Laudert, W. Mccully

Kansas Agricultural Experiment Station Research Reports

Several spaying and ovarian autografting methods were tested in three field trials with 658 grazing heifers. None of the techniques examined were found to have a beneficial effect on heifer gains compared to intact controls. Heifers' initial weight, frame size, and body condition score were associated with cattle performance; however, their relative impact on gains varied across the three trials.

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