Performance of 4- and 5- Year-Old Hereford, Hereford × Holstein and Holstein Cows on Range and in Drylot2

Wyatt, R. D.; Lusby, K. S.; Whiteman, J. V.; Gould, M. B.; Totusek, Robert

doi:10.2527/jas1977.4551120x

Cited by 24 publications

(7 citation statements)

References 11 publications

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“…Between age groups, the mature cows demonstrated a significantly (P<0.05) higher winter weight loss than younger cows. The noticeable difference between 2-yr-olds and other age groups in this study reflects the different feeding and management for first-calf heifers, as these results are unlike those reported by Deutscher and Whiteman (197 I ) and Wyatt et al (1977b) who observed that cows with dairy breeding and 2-and 3-yr-olds lost more weight than did Herefords and older cows.…”

Section: Cow Winter Weight Losscontrasting

confidence: 56%

Factors Influencing Weaning Weights of Range Beef and Dairy-Beef Calves

Butson¹,

Berg²,

Hardin³

1980

Can. J. Anim. Sci.

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Section: Cow Winter Weight Losscontrasting

confidence: 56%

Factors Influencing Weaning Weights of Range Beef and Dairy-Beef Calves

Butson¹,

Berg²,

Hardin³

1980

Can. J. Anim. Sci.

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“…The decreased carrying capacity and increased input costs that is commonly thought to occur with larger cows were not observed in the current research, which is likely due to the environment the research was conducted. Although confounded with milk production potential, Kropp et al (1973) and Wyatt et al (1977) found that BW change during the summer of heavier Holstein cows did not differ from lighter BW Hereford-Holstein crossbred cows, but BCS at the end of lactation was 2 condition scores less for the larger cows, regardless whether cows were maintained in a drylot or on native range. Larger Holstein cows (albeit having a greater milk production potential) in the Wyatt et al (1977) experiment also weaned heavier calves than the smaller Hereford-Holstein crossbred cows whether maintained in a drylot or on native range pastures.…”

Section: Cow Bwmentioning

confidence: 97%

Effect of mature body weight and stocking rate on cow and calf performance, cow herd efficiency, and economics in the southeastern United States1

Beck¹,

Stewart²,

Gadberry

et al. 2016

Journal of Animal Science

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Eight 4-ha mixed warm-season grass pastures in southwestern Arkansas (33°40'4″ N, 93°35'24″ W, and elevation 107 m) were stocked with either large mature size (571 kg [SD 55.2] BW) or small mature size (463 kg [SD 58.2] BW) spring-calving cows at 4 stocking rates (SR; 1, 1.5, 2, or 2.5 cow-calf pairs/ha) over 4 yr to test the effects of SR and mature body size on cow and calf performance and system economics. Each pasture received 112 kg/ha N as ammonium nitrate in May and was broadcast seeded to annual ryegrass ( Lam.) in mid October each fall along with 112 kg/ha N as ammonium nitrate. Data were analyzed by regression to determine the effects of cow size and SR on calf performance, cow BW change, calf gain, weaning weight per hectare, hay feeding requirements, and net returns. As SR increased, cow BW and BCS at weaning decreased ( < 0.01) by 26 kg and 0.36 condition scores, respectively, for each additional cow stocked per hectare ( = 0.44). Calf BW at weaning in October increased ( < 0.01) 19 kg for each 100-kg increase in cow BW but was not affected ( = 0.66) by SR. As cow BW increased, calf BW at weaning per 100 kg cow BW decreased ( < 0.01) 6.7 kg for each 100-kg increase in cow BW but was not affected ( = 0.44) by SR. Neither cow BW nor SR affected ( ≥ 0.53) pregnancy percentage, which averaged 88% over the 4-yr experiment. Calf BW weaned per hectare was not affected ( = 0.75) by cow BW but linearly increased ( < 0.01) by 217 kg for each additional cow per hectare SR. Hay feeding days and cost of hay per cow increased ( ≤ 0.05) and kilograms of hay offered per cow tended ( = 0.09) to linearly increase with increasing SR, yet cow BW had no effects ( > 0.22). Although there were no effects ( ≥ 0.38) of cow BW on carrying cost or net returns, increasing SR decreased ( < 0.01) total expenses by US$102/cow and increased net returns by $70/cow and $438/ha for each cow per hectare increase in SR. These data indicate that increasing cow size can increase weaning BW of calves but does not affect total production per hectare or profitability, even though weaning weight efficiency ratios were reduced. Increasing SR reduced cow BW and BCS at weaning and increased feeding of conserved forages but did not affect pregnancy rates and led to increases in total calf BW weaned per hectare and net returns.

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“…The averages of 9, 10, 9, 9, 5, and 4 reports of weights at 2, 3, 4, 5, 6, and 7 yr of age for Angus cows were 411, 437, 468, 485, 510, and 499 kg (Brown et al, 1956a,b,c;Brown and Franks, 1964;Smith et al, 1976a;Spelbring et al, 1977;Nadarajah et al, 1984;Marlowe and Morrow, 1985;Sacco et al, 1990;Beltran et al, 1992;Northcutt et al, 1992;Archer et al, 1998). The corresponding averages for 5, 8, 4, 6, 4, and 4 reported weights for Hereford cows were 402, 455, 487, 498, 518, and 523 kg (Brown et al, 1956a,b;Brinks et al, 1962;Brown and Franks, 1964;Butts et al, 1971;Benyshek and Marlowe, 1973;Smith et al, 1976a;Wyatt et al, 1977;Field et al, 1988;Sacco et al, 1990;Meyer, 1995). Averages from previous reports agree with the present study that at 2 yr of age, Angus cows outweighed Hereford cows.…”

Section: Cow Weightsmentioning

confidence: 99%

“…Benyshek and Marlowe (1973) reported a score of 3.1 (1 to 5 scale) for 7-yr-old cows. Wyatt et al (1977) reported on an experiment including Hereford, Holstein, and Hereford-Holstein cows under range conditions and a moderate level of supplementation. On average (two measurements during fall and one in spring), Hereford cows had the greatest condition score of 6.0 points (1 to 9 scale) at 4 to 5 yr of age.…”

Section: Body Condition Scorementioning

confidence: 99%

Breed comparisons of Angus, Charolais, Hereford, Jersey, Limousin, Simmental, and South Devon for weight, weight adjusted for body condition score, height, and body condition score of cows1,2

Arango

Cundiff²,

Vleck³

2002

Journal of Animal Science

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Breed means and differences for weight (CW, n = 19,851), height (CH, n = 14,553), and condition scores (CS, n = 19,536) recorded in four seasons per year were evaluated for 881 cows ranging from 2 to 7 yr of age from Cycle I of the Germplasm Evaluation Program at the U.S. Meat Animal Research Center. Cows were straightbred Herefords and Angus and topcrosses from mating of Hereford, Angus, South Devon, Jersey, Simmental, Limousin, and Charolais sires to Hereford and Angus dams. The model included cow age, season of measurement, and their interactions, with year of birth, pregnancy-lactation (PL) code, and breed group as fixed effects for CW and CS. Analyses of weight adjusted for condition score included CS as covariate. Model for CH excluded PL. Random effects were additive genetic and permanent environmental effects. Data were analyzed by REML. Differences due to breeds of sire were significant for all traits. Differences were gen-

show abstract

Performance of 4- and 5- Year-Old Hereford, Hereford × Holstein and Holstein Cows on Range and in Drylot2

Cited by 24 publications

References 11 publications

Factors Influencing Weaning Weights of Range Beef and Dairy-Beef Calves

Factors Influencing Weaning Weights of Range Beef and Dairy-Beef Calves

Effect of mature body weight and stocking rate on cow and calf performance, cow herd efficiency, and economics in the southeastern United States1

Breed comparisons of Angus, Charolais, Hereford, Jersey, Limousin, Simmental, and South Devon for weight, weight adjusted for body condition score, height, and body condition score of cows1,2

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