Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; Calves; Grower diets; Fish meal; Protein source (1)
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; Calves; Starter diets; Soybeans; Roasting temperatures (1)
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; GnRH agonist; Pregnancy rates; Hormones; Cattle (1)
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; GnRH; Ovarian follicles; FSH; Estradiol; Progesterone (1)
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; Milk production; Days open; Dairy cattle (1)
-
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; Retinol; α-Carotene; Neutrophils; Macrophages; Calves (1)
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; Somatic cell count; Mastitis; Rolling herd average (1)
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; Thyroidectomy; Overiectomy; Estrous behavior; Cattle (1)
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; Waste management; Kansas regulations; Manure production (1)
- 1992; Kansas Agricultural Experiment Station contribution; no. 93-131-S; Waste management; Production dairy indistry; Dairy (1)
Articles 1 - 10 of 10
Full-Text Articles in Life Sciences
Leukocyte Function In Vitro After Adding Vitamins A, E, And Beta-Carotene (1992), S.D. Eicher, J.L. Morrill, Frank Blecha
Leukocyte Function In Vitro After Adding Vitamins A, E, And Beta-Carotene (1992), S.D. Eicher, J.L. Morrill, Frank Blecha
Kansas Agricultural Experiment Station Research Reports
Blood neutrophils and pulmonary alveolar macrophages isolated from calves at 3 and 6 wk of age were cultured in medium without added vitamins or supplemented with vitamin A, vitamin E, vitamin A and vitamin E, or ßcarotene and vitamin E. Macrophage bactericidal activity improved with A-E supplementation compared to ß-carotene-E supplementation at wk 3. Neutrophil bactericidal activity decreased with all vitamin E treatments at wk 3 and with vitamins E and A-E at wk 6. Neutrophil phagocytosis improved at wk 3 with A, E, and A-E supplementations. The chemotactic index improved at wk 3 with ß-carotene- E compared to vitamin …
Effect Of Yearly Milk Production On Average Days Open (1992), Edward P. Call
Effect Of Yearly Milk Production On Average Days Open (1992), Edward P. Call
Kansas Agricultural Experiment Station Research Reports
Although there is a genetic antagonism between yearly production per cow and reproduction, analysis of Kansas Holstein herds suggests that managers of higher producing herds overcome this inverse relationship. Higher producing herds have fewer cows open at any given time, and those cows that are open average fewer days since last freshening. When open cows are categorized by days open, higher producing herds have fewer cows open more than 60 days, and especially fewer cows open more than 120 days.; Dairy Day, 1992, Kansas State University, Manhattan, KS, 1992;
Ovarian Follicular Waves And Secretion Of Follicle-Stimulating Hormone After Administration Of Gnrh At Estrus (1992), J.R. Pursley, Jeffrey S. Stevenson
Ovarian Follicular Waves And Secretion Of Follicle-Stimulating Hormone After Administration Of Gnrh At Estrus (1992), J.R. Pursley, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
An experiment was conducted to examine the effects of GnRH on the secretion of FSH, LH, estradiol, and progesterone in serum and changes in ovarian structures. Dairy cows were assigned randomly to receive either 100 μg of GnRH or saline 12 hr after estrus (day 0) was detected. Blood was collected daily to assess changes in serum estradiol and progesterone and every 12 min for 8 hr on days 8 and 15 after estrus to assess concentrations of FSH and LH. Diameter and number of follicles were determined daily by real-time ultrasonography. Two patterns of follicular development were observed. The …
Waste Management In The Production Dairy Industry (1992), C. Fulhage
Waste Management In The Production Dairy Industry (1992), C. Fulhage
Kansas Agricultural Experiment Station Research Reports
The impact of environmental regulation on livestock production enterprises is, inevitably, an increase in production costs. Producers should recognize that these are the costs of doing business and will probably have to be incurred by all producers who stay in business and remain viable. With proper input to the regulation process and implementation of practical and effective methods of manure management, most producers should be able to maintain viable enterprises.; Dairy Day, 1992, Kansas State University, Manhattan, KS, 1992;
Fish Meal As A Protein Source For Holstein Steer Calves (1992), J.L. Morrill, J.F. Laster, J.M. Morrill, A.M. Feyerherm
Fish Meal As A Protein Source For Holstein Steer Calves (1992), J.L. Morrill, J.F. Laster, J.M. Morrill, A.M. Feyerherm
Kansas Agricultural Experiment Station Research Reports
Holstein steer calves (n = 96) were on experiment from 8 to 18 wk of age. Control calves were fed a diet in which all supplemental protein was from soybean meal; in the experimental diet, part of the soybean meal was replaced by fish meal. Both feeds were readily consumed, and consumption did not differ between treatments. Gains of calves fed fish meal were greater (P = .10) during the first 8 wk of the experiment; however, over the entire experiment, the difference was not significant. Overall results suggest that fish meal may improve weight gains and feed efficiency of …
Somatic Cell Count Inversely Related To Potential Profits In Dairying (1992), James R. Dunham
Somatic Cell Count Inversely Related To Potential Profits In Dairying (1992), James R. Dunham
Kansas Agricultural Experiment Station Research Reports
Somatic Cell Count (SCC) affects productivity of a dairy herd and, thus, potential profit. Almost all SCC problems can be solved by management. The DHIA SCC program is very useful for evaluating the situation in a dairy herd to solve such problems.; Dairy Day, 1992, Kansas State University, Manhattan, KS, 1992;
Evaluation Of Roasted Soybeans For Dairy Calves (1992), P.V. Reddy, J.L Morrill, L.S. Bates
Evaluation Of Roasted Soybeans For Dairy Calves (1992), P.V. Reddy, J.L Morrill, L.S. Bates
Kansas Agricultural Experiment Station Research Reports
Diets containing soybeans roasted at different temperatures were fed to calves to investigate effects on growth and feed consumption. A growth trial was conducted using 84 Holstein calves from birth to 8 wk of age. The diets were formulated to contain 18% CP using soybeans roasted at 270 degrees F, 295 degrees F, or 325 degrees F. The overall feed consumption was greater for calves fed the diet containing beans roasted at either 270 or 295 degrees F than those fed the diet containing 325 degrees F beans. A similar trend was observed in weekly feed consumption. Gains were higher …
Administering A Gnrh Agonist (Receptal) After Insemination Fails To Improve Pregnancy Rates At First Service (1992), I. Rettmer, R.E. Stewart, Jeffrey S. Stevenson
Administering A Gnrh Agonist (Receptal) After Insemination Fails To Improve Pregnancy Rates At First Service (1992), I. Rettmer, R.E. Stewart, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
Two experiments were performed to determine the influence of administering a highly potent agonist of gonadotropin-releasing hormone (Receptal) on various reproductive characteristics in dairy cows. In Experiment 1, lactating Holstein cows were treated with either saline (n = 51) or 8 μg of receptal (n = 50) on d 11 to 14 after estrus (d 0) and first service. Peak concentrations of LH, FSH, and progesterone, but not estradiol-17b, in blood serum were increased during 6 to 12 h after injection of Receptal. Pregnancy rates were unaffected by treatment. Concentrations of progesterone in blood serum were increased in nonpregnant and …
Waste Management: Regulations And Problems In Kansas (1992), Joseph P. Harner, James P. Murphy
Waste Management: Regulations And Problems In Kansas (1992), Joseph P. Harner, James P. Murphy
Kansas Agricultural Experiment Station Research Reports
The dairy industry is receiving greater pressure to reduce its potential pollution to the environment. As the demand grows for cleaner streams, dairy operations will need to reduce and control the nutrient and sediment loading of the runoff leaving the farm vicinity. Existing dairy operations will need to evaluate the impact of manure storage and management on the environment. Costs of controlling the runoff must be weighed against new lot construction in an alternate location. Future dairy facilities will need to address current regulations and be designed for compliance with future and more stringent regulations.; Dairy Day, 1992, Kansas State …
Induction Of Estrus In Thyroidectomized-Ovariectomized, Nonlactating, Holstein Cows (1992), R.E. Stewart, M.O. Mee, I. Rettmer, Jeffrey S. Stevenson
Induction Of Estrus In Thyroidectomized-Ovariectomized, Nonlactating, Holstein Cows (1992), R.E. Stewart, M.O. Mee, I. Rettmer, Jeffrey S. Stevenson
Kansas Agricultural Experiment Station Research Reports
Low thyroid activity (hypothyroidism) has been reported to decrease sexual behavior associated with reproduction in several species. Using estradiol benzoate (EB) and progesterone (P ), we attempted to induce 4 estrus in hypothyroid cows. Thyroid glands (thyroidectomy) and ovaries (ovariectomy) were removed surgically from nonlactating and nonpregnant Holstein cows that were culled from the Kansas State University dairy herd. Eight cows were thyroidectomized and ovariectomized (THYOVEX) and another four cows were ovariectomized only (OVEX). Starting 9 hr after injection of EB, cows were continuously observed for estrus for 36 hr. Frequencies of mounting activity and standing behavior were recorded for …