Comparison of grazing oat and pea crop residue versus feeding grass–legume hay on beef-cow performance, reproductive efficiency, and system cost11This research was supported in part by grants from the Saskatchewan Agriculture Development Fund, Saskatchewan Cattle Marketing Deductions Fund, and Western Beef Development Centre.

2013 ◽  
Vol 29 (5) ◽  
pp. 535-545 ◽  
Author(s):  
A.D. Krause ◽  
H.A. Lardner ◽  
J.J. McKinnon ◽  
S. Hendrick ◽  
K. Larson ◽  
...  
Keyword(s):  
Crop Residue ◽  
Reproductive Efficiency ◽  
Development Fund ◽  
Beef Cow ◽  
Development Centre ◽  
Cow Performance ◽  
Agriculture Development

An integrated approach to crop/livestock systems: Wintering beef cows on swathed crops

2005 ◽  
Vol 20 (4) ◽  
pp. 232-242 ◽  
Author(s):  
J.F. Karn ◽  
D.L. Tanaka ◽  
M.A. Liebig ◽  
R.E. Ries ◽  
S.L. Kronberg ◽  
...  
Keyword(s):  
Crop Residue ◽  
Integrated Approach ◽  
Beef Cows ◽  
Beef Cow ◽  
Western Wheatgrass ◽  
Feeding Costs ◽  
Calf Performance ◽  
Weight Gain Data ◽  
Cow Performance ◽  
Feed Costs

AbstractGrain and livestock production have gradually been separated, as farmers have tended to specialize in one or the other. Some producers and scientists are beginning to question whether this is the best approach. An integrated crop/livestock project was initiated in 1999 to investigate potentially beneficial synergies to both enterprises. The cattle portion of this project involved wintering dry pregnant cows on swathed crop residue and drilled corn produced in a 3-year crop rotation, with all crops present each year. Swath grazing was initiated in mid-November of 1999, 2000 and 2001, and terminated in mid-February each year. Two replications of ten Hereford cows were rotationally grazed on swathed oat/pea and triticale crop residue and swathed drilled corn (RGSC). Comparison treatments were: cows grazing swathed western wheatgrass (SWWG) and cows fed hay in a drylot. Cows on the RGSC treatment were also fed a 20% crude protein supplement of oat/pea and triticale grain. Drilled corn was swathed in late September and western wheatgrass in early October. Three-year average winter-long weight gains for the RGSC cows were slightly lower (P<0.10) than those for drylot cows. Body condition scores generally followed the same pattern as weight gain data. Reproductive and calf performance data were not significantly different among wintering treatments. Average daily feed costs per cow over the three winters were US$0.49, 0.65 and 0.73 for RGSC, SWWG and baled hay in a drylot, respectively, providing a potential daily savings of US$0.24 per cow with the RGSC treatment compared to bale feeding in a drylot. Swath grazing did not appear to have any adverse affects on mid-aged beef cow performance and could potentially reduce winter feeding costs and manure handling problems. The main problem with swath grazing is potentially deep snow and icing of the swaths.

Effect of winter feeding system on beef cow performance, reproductive efficiency, and system cost1

2011 ◽  
Vol 27 (5) ◽  
pp. 410-421 ◽  
Author(s):  
B.M. Kelln ◽  
H.A. Lardner ◽  
J.J. McKinnon ◽  
J.R. Campbell ◽  
K. Larson ◽  
...  
Keyword(s):  
Reproductive Efficiency ◽  
Feeding System ◽  
Beef Cow ◽  
Cow Performance ◽  
Winter Feeding

scholarly journals PSI-3 Effects of housing cow-calf pairs in drylots vs pasture during the summer on cow performance

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 228-228
Author(s):  
Keiffer Sexton ◽  
Megan Myerscough ◽  
Wesley Chapple ◽  
William T Meteer ◽  
Keela Trennepohl ◽  
...  
Keyword(s):  
Milk Production ◽  
Milk Fat ◽  
Binary Data ◽  
Pregnancy Rates ◽  
Corn Silage ◽  
Fat Percentage ◽  
Beef Cow ◽  
Dried Distillers Grains ◽  
Milk Urea ◽  
Cow Performance

Abstract The objective was to evaluate the effects of maintaining cows in drylots vs pasture on beef cow performance. Spring-calving, Simmental × Angus cows (n = 108; 84 ± 11 d postpartum) were stratified by age, BW, BCS, calving date, and sex of calves and allotted to 6 groups. Groups were randomly assigned to 1 of 2 treatments for 110 d: drylot (DL) or pasture (PAST). Drylot cows were limit-fed a ration consisting of corn silage, dried distillers grains, hay, corn stalks, corn, and soybean hulls to meet protein and energy requirements. Cows on pasture were rotationally grazed and offered free-choice mineral. On d 0, cows were artificially inseminated (AI). On d 0, 53, and 110 (weaning), cow BW and BCS were measured. On d 54 milk production was estimated using the weigh-suckle-weigh technique. Data were analyzed using the MIXED procedure of SAS. All binary data were analyzed using the GLIMMIX procedure of SAS. On d 0 and 53, cow BW did not differ (P ≥ 0.73) between DL and PAST. On d 110, DL cows had 74 kg greater (P &lt; 0.01) BW than PAST cows. The BCS did not differ (P ≥ 0.66) between treatments. There was no difference in milk production (P = 0.93); however, drylot cows tended (P = 0.10) to have reduced milk fat percentage and had reduced (P &lt; 0.01) milk urea nitrogen. There was no difference (P ≥ 0.34) in AI or overall pregnancy rates between treatments. There was no difference in foot angle or claw set (P ≥ 0.17) of cows at any time point. There was also no difference (P = 0.17) in foot treatments between DL (39%) and PAST (4%). Housing cows in drylots compared to pasture increased BW, but did not affect BCS, milk production, and pregnancy rates.

scholarly journals 80 Evaluation of extended release eprinomectin efficacy on multiparous beef cow performance

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 11-11
Author(s):  
Laine Zammit ◽  
Jermey G Powell ◽  
Reagan N Cauble ◽  
Toby D Lester ◽  
Callan Lichtenwalter ◽  
...  
Keyword(s):  
Extended Release ◽  
Reproductive Traits ◽  
Economic Loss ◽  
Beef Cows ◽  
Negative Control ◽  
Beef Cow ◽  
Body Weights ◽  
Calving Season ◽  
Cow Performance ◽  
Fall Calving

Abstract Internal parasitism inevitability prompts economic loss in beef cattle production by decreasing growth performance and reproductive traits. Previous studies have conflicting results on the macrocyclic lactones (ML) efficacy against internal parasitism. The objective of this study was to evaluate the efficacy of milbeymycin and avermectin sub groups of ML on cow performance. Multiparous fall calving, crossbred beef cows (n = 106) were allocated randomly to 1 of 3 anthelmintic treatments: 1) Negative control (CON), in which cows did not receive an anthelmintic, 2) Injectable moxidectin (MOX) and 3) Injectable extended release eprinomectin (ERE). Body weights (BW), body condition scores (BCS), and fecal egg counts (FEC) were taken throughout the duration of the calving season to weaning on d0, d80, d162, and d217, with weaning occurring on d217. Performance data were analyzed using the MIXED procedures of SAS, and pregnancy data were analyzed using the GENMOD procedures of SAS. Significance was fixed at P &lt; 0.05 and tendencies were established from 0.05 ≤ P ≤ 0.10. There was no effect of anthelmintic treatment on cow BW (P ≥ 0.57) or cow BCS (P ≥ 0.22) during the 217 d study; however, CON cows tended to have lower BCS (P = 0.08) throughout the duration of the study. Cows treated with ERE had fewer FEC compared to MOX and CON groups (P ≤ 0.001) and tended to improve pregnancy rates (c2 = 0.0546). Calf weaning weight was similar among treatments averaging 216, 225, and 223 kg regarding CON, MOX, and ERE cow treatments, respectively.

scholarly journals Effects of supplementing methionine hydroxy analog on beef cow performance, milk production, reproduction, and preweaning calf performance1

2017 ◽  
Vol 95 (12) ◽  
pp. 5597-5605 ◽  
Author(s):  
A. R. Clements ◽  
F. A. Ireland ◽  
T. Freitas ◽  
H. Tucker ◽  
D. W. Shike
Keyword(s):  
Milk Production ◽  
Beef Cow ◽  
Cow Performance

Effects of housing beef cow-calf pairs on drylot or pasture in the Midwest on production parameters and calf behavior through feedlot receiving

2021 ◽  
Author(s):  
Megan E Myerscough ◽  
Lucas T Neira ◽  
Keifer H Sexton ◽  
Lucas S Hofer ◽  
Keela M Trennepohl ◽  
...  
Keyword(s):  
Milk Production ◽  
Treatment Time ◽  
Body Condition Score ◽  
Average Daily Gain ◽  
Beef Cow ◽  
Condition Score ◽  
Ad Libitum ◽  
Cow Calf ◽  
Cow Performance ◽  
And Behavior

Abstract The objectives were to analyze the effects of housing cow-calf pairs in drylots (DL) or pasture (PAST) on cow performance and reproduction as well as calf performance and behavior through feedlot receiving. Simmental × Angus (2 yr; 108/yr; 81 ± 15.3 d postpartum) spring-calving cows were stratified by age, body weight (BW), body condition score (BCS), and calf sex and allotted to 6 groups/yr. Groups were randomly assigned to 1 of 2 treatments: DL or PAST. Cows in DL were limit-fed at maintenance and calves had ad libitum access to the cow diet in an adjacent pen. Pairs on PAST were rotationally grazed and calves received creep ad libitum three weeks prior to weaning. On d 110 calves were fence-line weaned and behavior was observed on d 111 and 112. On d 116 calves were transported 272 kilometers to a feedlot for a 42-d receiving period. Behavior was evaluated again on d 117 and 118. Data were analyzed using the MIXED procedure of SAS except reproductive data which was analyzed using the GLIMMIX procedure. Cows on DL had greater (P ≤ 0.01) BW and BCS at weaning. There were no differences (P ≥ 0.42) detected in reproductive data. Cows on DL had greater (P = 0.02) milk production. Calves on DL had greater BW (P ≤ 0.01) on d 55 and at weaning and greater preweaning average daily gain (ADG). There were treatment × time effects (P = 0.01) for lying and eating on d 111 and 112. More DL calves were eating in the morning and lying in the evening. More (P &lt; 0.01) PAST calves were walking on d 111. Pasture calves vocalized more (P ≤ 0.01) on d 112. On d 117, more (P ≤ 0.05) pasture calves were lying and eating, and DL vocalized more. On d 118, treatment × time and treatment effects were detected (P ≤ 0.02) for lying and walking. More PAST calves were lying and more DL calves were walking. Drylot calves had greater (P ≤ 0.02) BW at the beginning and end of the receiving phase. Pasture calves had greater (P &lt; 0.01) ADG and tended (P = 0.10) to have greater gain efficiency during feedlot receiving phase. In conclusion, housing cow-calf pairs in drylots improved BW, BCS, and milk production of cows but did not affect reproductive performance. Drylot calves had increased BW and ADG during the preweaning phase. Calf behavior at weaning and receiving was influenced by preweaning housing. Pasture calves had improved receiving phase ADG and feed efficiency but were still lighter than drylot calves after 42 d receiving phase.

290 Effects of grazing diverse combinations of sainfoin, birdsfoot trefoil, and alfalfa on beef cow performance and environmental impacts

2017 ◽  
Vol 95 (suppl_4) ◽  
pp. 143-144 ◽  
Author(s):  
S. Lagrange ◽  
K. A. Beauchemin ◽  
J. W. MacAdam ◽  
J. J. Villalba
Keyword(s):  
Environmental Impacts ◽  
Birdsfoot Trefoil ◽  
Beef Cow ◽  
Cow Performance

Effect of increasing proportion of supplemental N from urea in prepartum supplements on range beef cow performance and on forage intake and digestibility by steers fed low-quality forage2

2002 ◽  
Vol 80 (6) ◽  
pp. 1652-1662 ◽  
Author(s):  
H. H. Köster ◽  
B. C. Woods ◽  
R. C. Cochran ◽  
E. S. Vanzant ◽  
E. C. Titgemeyer ◽  
...  
Keyword(s):  
Beef Cow ◽  
Forage Intake ◽  
Cow Performance

scholarly journals 41 Reproductive management of beef females in South America

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 32-33
Author(s):  
Jose Luiz Moraes Vasconcelos ◽  
Reinaldo F Cooke ◽  
Mauro Meneghetti ◽  
Isaias Claro Junior ◽  
Rogerio Peres ◽  
...  
Keyword(s):  
South America ◽  
Bos Indicus ◽  
Reproductive Efficiency ◽  
Tropical Pastures ◽  
Beef Cow ◽  
Weaning Age ◽  
Beef Herds ◽  
Tropical Areas ◽  
Calving Season ◽  
Genetic And Environmental Factors

Abstract The majority of beef cow herds in South America are constituted by Bos indicus females, which have particular reproductive features that contribute to reduced reproductive efficiency compared with that of B. taurus cohorts. B. indicus heifers reach puberty at an older age compared with B. taurus heifers. Nutritional challenges are critical in cows maintained on low-quality tropical pastures, given that nutrient intake during the postpartum period is not sufficient to meet their requirements for growth and lactation. Several alternatives to enhance reproductive efficiency of B. indicus heifers and cows have been developed to address their inherent reproductive shortcomings. These research-based technologies include: a) hormonal protocols to induce puberty in nulliparous heifers, b) hormonal protocols to synchronize estrus and/or ovulation in B. indicus females to exploit their reproductive responses to artificial insemination, and c) genetic and environmental factors that influence reproductive success in beef herds, including reproductive diseases and excitable temperament of B. indicus females, which have been investigated to support/promote the development of appropriate mitigation technologies. The objective of this presentation is to discuss pharmacological and management technologies to improve reproductive performance of cow-calf systems from tropical areas in South America. Currently, there are hormonal treatments allowing South American B. indicus producers to reach the benchmark of 50% pregnancy rate to TAI, as well as enhance the percentage of cows becoming pregnant to AI at the beginning of the breeding season. This outcome is expected to optimize use of labor, and increase calf weaning age and weight via genetic improvement and concentration of births at the beginning of the calving season.

Sign in / Sign up

Export Citation Format

Share Document