Case Study: Effects of extended-release eprinomectin on cow-calf performance and reproductive success in a fall-calving beef herd

2018 ◽  
Vol 34 (2) ◽  
pp. 223-229 ◽  
Author(s):  
C.E. Andresen ◽  
D.D. Loy ◽  
T.A. Brick ◽  
P.J. Gunn
Keyword(s):  
Reproductive Success ◽  
Extended Release ◽  
Calf Performance ◽  
Beef Herd ◽  
Cow Calf ◽  
Fall Calving

EFFECTS OF TWIN-FOSTER CALF REARING AND OF AGE AT WEANING ON COW AND CALF PERFORMANCE

1982 ◽  
Vol 62 (3) ◽  
pp. 821-826 ◽  
Author(s):  
J. G. ROSECRANS ◽  
W. A. NIPPER ◽  
W. D. HOHENBOKEN ◽  
D. W. WEBER
Keyword(s):  
Key Words ◽  
Reproductive Performance ◽  
Management Practice ◽  
Supplemental Feed ◽  
Calf Performance ◽  
Cow Calf ◽  
Feed Costs ◽  
Fall Calving ◽  
Calf Rearing

The effects of twin-foster calf rearing on calf weight at 200, 291 and 365 days postcalving, on calf weight produced per cow, and on reproductive performance of cows were evaluated using fall-born calves. Eleven Holstein × Angus or Holstein × Hereford 2- or 3-yr-old cows rearing 20 Holstein or Limousin crossbred calves were compared with cows of similar age and breeding rearing 13 single-suckled Limousin crossbred calves. Twin calves were significantly lighter than single calves, but calf production per cow at 200 days postcalving was increased 39% by twin fostering. At 291 and 365 days postcalving, production per cow from twin fostering was 50% and 55% greater than that from single-suckled cows whose calves were weaned at 291 days. Twin fostering did not depress reproductive performance of the cows. However, supplemental feed costs and labor required at fostering were considered to restrict applicability of this management practice. Weaning at 9 mo as opposed to 200 days of age increased calf production per single-suckled cow without a substantial increase in costs. Key words: Cow-calf, twin foster, single-suckled, fall calving

22 Effects of Housing Cow-calf Pairs on Drylots vs Pasture on Calf Performance and Behavior Through Weaning

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 24-24
Author(s):  
Megan Myerscough ◽  
Wes Chapple ◽  
William T Meteer ◽  
Daniel W Shike
Keyword(s):  
Corn Silage ◽  
Time Interaction ◽  
Creep Feed ◽  
Calf Performance ◽  
Ad Libitum ◽  
Cow Calf ◽  
Distillers Grain ◽  
Dried Distillers Grain ◽  
And Behavior ◽  
Fence Line

Abstract The objectives were to analyze the effects of housing cow-calf pairs in drylots or pasture on calf performance and behavior through weaning. Simmental × Angus (2 yr; 108/yr; 81 ± 15.3 d postpartum) spring-calving cows were stratified by age, BW, BCS, and calf sex and allotted to six groups/yr. Groups were randomly allotted to 1 of 2 treatments: drylot (DL) or pasture (PAST). Calves in the drylot had ad libitum access to a diet consisting of corn silage, dried distillers grain, corn stalks, dry rolled corn, and soybean hulls. Calves on PAST received creep feed three weeks prior to weaning. Calf BW was measured on d 0, 55, and 110. Calves were fence-line weaned on d 110. Behavior was observed for two days after weaning. Data were analyzed using the MIXED procedure of SAS. Drylot calves had greater (P < 0.01) BW at d 55 and 110. There was treatment by time interactions (P < 0.01) for lying and eating on d 111. More PAST calves were lying at h 2 and 3 and eating at h 11 and 12. More DL calves were lying at h 9, 10, 11, and 12. More DL calves were eating at h 2 and tended to at h 3. There was also a treatment by time interaction (P < 0.01) for vocalizations on d 111. More PAST calves vocalized at h 1, however, DL calves vocalized more at h 4 and tended to at h 5. There was treatment by time interactions (P < 0.01) for eating and walking on d 112. More DL calves were eating at h 2, 3, 4, 7, and 9. More PAST calves were walking at h 1 and 2. There was also a treatment by time interaction (P < 0.01) for vocalizations on d 112. More PAST calves vocalized at h 1 and 10. In conclusion, housing cow-calf pairs in drylots improved preweaning performance and altered postweaning behavior.

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 < 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 PSIII-34 Maternal disposition as related to calf weaning performance using chute scores

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 259-259
Author(s):  
Michael Sims ◽  
Paul A Beck ◽  
Cyril B Stewart ◽  
Reagan Cauble
Keyword(s):  
Performance Data ◽  
University Of Arkansas ◽  
Point Scale ◽  
Weaning Weight ◽  
Calf Performance ◽  
The Relationship ◽  
Fall Calving

Abstract Cow disposition has been reported to impact calf performance. The purpose of this study was to investigate the relationship between cow disposition at calving to calf weaning performance. Data were collected from four University of Arkansas research locations on both spring and fall calving herds between August 2017 and May 2018.Cow behavior was observed at calving and received a disposition score (CDS) taken on a 5-point scale where a score of 1 was highly aggressive, and a 5 was apathetic. Calf birthweight (BW), birthdate, and sex were also noted. At weaning, calf weight (WW) was recorded and used to calculate a 205-day adjusted weaning weight (AWW). Calf chute behavior (CS) was taken on a 5-point scale; a score of 1 was indicative of a calm exit, and a 5 was aggressive when exiting the chute. Data were analyzed using the GLIMMIX procedure of SAS. Significance was declared at P ≤ 0.05. Cow Disposition Score had an effect on calf BW (P = 0.0037). Cows that received a disposition score of 2 or 3 had greater calf BW than those who had a disposition score of 4 (P = 0.0021) and (P = 0.0017), respectively. Cow Disposition Score had no effect on calf WW or AWW. Chute Score had an effect on WW (P ≤ 0.05). Calves with a CS of 1 had higher WW than those who had a CS of 2 or 3 (P = 0.028) and (P = 0.005), respectively. Chute Score had an effect on AWW (P = 0.003). Calves that received a CS of 1 had higher AWW than those who had a CS of 2 or 3 (P = 0.0023) and (P = 0.0002), respectively. This study indicates that cows with more aggressive dispositions at calving and calves who had calmer dispositions at weaning had higher performance.

CASE STUDY: Demonstration of the feasibility of extending the grazing period of beef cow-calf herds beyond 300 days in Arkansas

2014 ◽  
Vol 30 (6) ◽  
pp. 657-673 ◽  
Author(s):  
T.R. Troxel ◽  
M.S. Gadberry ◽  
J.A. Jennings ◽  
S.M. Jones ◽  
K.J. Simon ◽  
...  
Keyword(s):  
Beef Cow ◽  
Grazing Period ◽  
Cow Calf

scholarly journals Effect of fenbendazole on cow-calf performance and fecal egg counts

1985 ◽  
pp. 25-27
Author(s):  
Gerry L. Kuhl ◽  
R. Ridley ◽  
E. Francis ◽  
L. Riat
Keyword(s):  
Calf Performance ◽  
Cow Calf

scholarly journals 13 Effect of housing cow-calf pairs on dry lots vs pasture on calf performance and behavior

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 7-8
Author(s):  
Lucas T Neira ◽  
Ashley E Cooney ◽  
Wesley P Chapple ◽  
William T Meteer ◽  
Daniel W Shike
Keyword(s):  
Feed Efficiency ◽  
Average Daily Gain ◽  
Corn Silage ◽  
Hair Coat ◽  
Calf Performance ◽  
Cow Calf ◽  
Distillers Grain ◽  
Dried Distillers Grain ◽  
And Behavior ◽  
Daily Gain

Abstract The objectives were to analyze the effects of housing cow-calf pairs in dry lots (DL) or pasture (PAST) on calf performance and behavior through the receiving phase. Simmental × Angus (n = 108; 87 ± 11.5 d postpartum) spring-calving cows were stratified by age, BW, BCS, and calf sex and allotted to six groups. Cows were limit-fed a ration consisting of corn silage, dried distillers grain, corn stalks, dry rolled corn (DRC), and soybean hulls to meet protein and energy requirements. Calves had ad libitum access to same diet in an adjacent pen. Calves on PAST were rotationally grazed with free-choice mineral. After weaning (177 ± 11.5 d of age) all calves were fed a diet consisting of corn silage, wet distiller grains, DRC, and grass hay during the receiving phase (42 d). At the age 87, 142, 177, 198, and 219 ± 11.5 d, BW was measured. Hair coat score (HCS) and dirt score (DS) were measured on d 0 and d 90. Calf behavior was observed after feedlot arrival. Average daily gain, DMI and feed efficiency were also analyzed. The data were analyzed using the MIXED procedure of SAS. Dry-lot calves had greater (P < 0.01) BW and ADG prior to weaning. Calves from PAST had lower (P < 0.01) DS and greater (P < 0.01) HCS at weaning. Upon feedlot arrival, more (P < 0.01) DL calves were walking and had increased (P < 0.01) vocalizations. Calves from PAST had greater (P < 0.01) ADG, DMI as a percent of BW, and gain:feed than DL calves during the receiving phase. Calves raised in a dry lot had greater BW and ADG prior to weaning, but PAST calves had fewer behavioral signs of stress and greater growth performance in feedlot.

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