Feedlot Performance and Carcass Traits of Progeny of Hereford, Hereford × Holstein and Holstein Cows

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

doi:10.2527/jas1977.4551131x

Cited by 4 publications

(4 citation statements)

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“…In contrast, the Holstein steers consuming the LF diet had greater efficiency of gain than those receiving the HF diet. Previous research has reported that Holstein and Holstein crossbred steers range from having greater efficiency of gain (Thonney et al, 1981) to having lower efficiency of gain (Dean et al, 1976;Wyatt et al, 1977) compared to British steers.…”

Section: Resultsmentioning

confidence: 98%

Neutral detergent fiber concentration in corn silage influences dry matter intake, diet digestibility, and performance of Angus and Holstein steers2

Tjardes

Buskirk

Allen

et al. 2002

Journal of Animal Science

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Twelve Angus (237 +/- 13 kg) and twelve Holstein (235 +/- 15 kg) steers were used to determine whether corn silage-based diets with different NDF levels influence DMI to a similar extent in Angus and Holstein steers and as body weight of the steers increase. Steers were randomly assigned to individual slatted-floor pens and used in a crossover design consisting of six 14-d periods. Experimental diets contained corn silage from a normal hybrid (low-fiber; LF) and its male-sterile counterpart (high-fiber; HF) and were alternated each period. The LF and HF diets contained 33.8 and 50.8% NDF, respectively. The HF diet decreased (P < 0.01) overall steer mean DMI 14.0% relative to LF, with mean differences increasing as steers increased in BW (P < 0.01). Feeding the HF diet also reduced ADG by an average of 13.8% relative to the LF diet (P < 0.01). Holstein steers consumed 14.4% more DM and gained 14.3% faster (P < 0.01) than Angus steers. There was a fiber level x breed-type interaction (P = 0.08) for efficiency of gain. Angus steers receiving the HF diet had greater efficiency of gain than Angus steers consuming the LF diet; however, Holstein steers consuming the LF diet had greater efficiency of gain than those receiving the HF diet. The HF treatment reduced total-tract digestibility of DM and GE by 4.6 and 4.5%, respectively (P < 0.01), and decreased DE intake by 20.5% (P < 0.01) but increased apparent totaltract digestibility of NDF and ADF (9.4 and 8.4%, respectively; P < 0.01). Holstein steers had similar digestibility of DM and GE (P > 0.10) but had greater DE intake (P < 0.01) compared to Angus steers. There were fiber level x breed-type interactions for total-tract digestibility of NDF and ADF (P < 0.06). The difference in DM digestibility was negatively associated with the difference in DMI (r2 = 0.23; P < 0.01) for LF minus HF within Angus steers, but not within Holstein steers (P = 0.42). Total-tract digestibility of NDF and ADF was 4.1 and 3.4% lower for the HF diet but was only 1.1 and 0.6% lower for the LF diet when fed to Holstein compared to Angus steers. Results from this trial demonstrate that high-NDF corn silage-based diets reduced intake of both Angus and Holstein steers, and this reduction in DMI continued as steers increased in BW from 235 to 330 kg. Breed differences were also noted for digestible energy intake as influenced by fiber level.

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Section: Resultsmentioning

confidence: 98%

Neutral detergent fiber concentration in corn silage influences dry matter intake, diet digestibility, and performance of Angus and Holstein steers2

Tjardes

Buskirk

Allen

et al. 2002

Journal of Animal Science

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“…Thus, at the same level of subcutaneous fatness, Holsteins will contain more carcass fat and more internal body fat than beefbreeds ofcattle. This result may also partly explain why dairy animals have often been shown to have poorer feed efficiency than beef animals (Wyatt et al 1977;Blakely et al 1979). Few trials have been conducted to examine the influence of dietary energy intake on fat partitioning and distribution.…”

Section: Resultsmentioning

confidence: 99%

Carcass Tissue Yield and Distribution in Three Biological Types of Cattle Fed Grain or Forage-Based Diets

Jones¹

1985

Can. J. Anim. Sci.

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sity of Guelph, Guelph, Ont. NIG 2Wl. Received 13 Sept. 1984, accepted22 Feb. 198s than carcasses from H steers. Diet had no effect on lean tissue proportions, but forage feeding increased carcass bone (P<0.001) and decreased carcass fat (P<0.01). Forage feeding also resulted in carcasses with lower muscle to bone ratios (P<0.01) than carcasses produced from grain feeding. Holstein-carcasses had more carcass fat partitioned into the body cavity depot and less into the subcutaneous depot than S and L carcasses, but diet had no effect on fat partitioning. Biological type (S, L or H) and diet were found to have a minor effect on fat distribution. The results are discussed with reference to carcass evaluation of beef and dairy cattle fed diets based on forage or grain.

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“…However, larger dairy breed like Brown Swiss often showed heavier carcasses per day of age than Hereford and Angus (Berg, 1969;Urick et al, 1974;Koch et al, 1979). In a study involving Holsteins and their crosses, CWT and CWT per day of age increased with increasing levels of Holstein breeding (Lusby et al, 1975;Wyatt et al, 1977). At an age constant basis, Holsteins have also exhibited a higher CWT than Angus (Wellington, 1971) and Hereford-Angus crosses (Young et al, 1978).…”

Section: Breed Direct Additive Effectsmentioning

confidence: 99%

“…When data were adjusted for weight differences, g'^ remained higher and significant (P<.05), and despite lack of significant difference between breeds, re-ranking was noticed between g\ and g'^,. Although some reports indicate a larger LMA in Holstein than Hereford (Dean et al, 1976), other results seem inconsistent, as values ranged from a better performance of Hereford and Angus than Holsteins (Cole et al, 1963;Martin and Wilson, 1974) to lack of significant differences (Lusby et al, 1975;Wyatt et al, 1977).…”

Section: Longissimus Muscle Areamentioning

confidence: 99%

Selection practices and evaluation of growth and composition in three lines of synthetic beef cattle

Hassen

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Data in the present study came from two separate beef cattle breeding projects at Iowa State University. Data set-I included growth and carcass information of progeny in the small, medium, and large lines of synthetic cattle. Progeny were bom during the years 1978 through 1990 at Rhodes and McNay research farms. Data were used to evaluate selection practices in the three synthetic lines, to evaluate effects of some crossbreeding parameters on carcass traits, and to estimate genetic parameters and genetic trends for carcass traits. Data set-II included carcass and serially measured live-animal traits collected over a 6-year period (1991-1996). Most of the data came from progeny of purebred Angus and Simmental sires with known expected progeny difference and synthetic females from a previous project. Data set-II was used to study effects of sex and breed on growth and composition of feedlot cattle and to determine the best strategy to adjust serially measured traits to a constant age end point. The overall mean generation interval was 4.11 years. When averaged by line, 1.82, 1.47, and 1.28 generations of selection was made in the small, medium, and large lines, respectively. Mean actual sire index differentials per generation were, 1.28,-.47, and .84o for the small, medium, and large lines, respectively. There was a significant (P < .05) difference in direct additive effect between Jersey, Angus, and the Simmental breeds for most of the carcass traits considered. However, differences in breed maternal, average individual heterosis, and average maternal heterosis were not different from zero (P > .10). Heritability of hot carcass weight, dressing percentage, longissimus muscle area, fat thickness, and percentage of kidney, pelvic, and heart fat in the small line were, .30, .09, .21, .34, and .15, respectively. The respective values in the medium line were, .52, .35, .33, .29, and .07. Heritability values in the large line were in the order of .31,. 18,. 17, .31, and .18, vii respectively. Sire selection based on weaning indices showed a significaat (P < .05) genetic change for some of the carcass traits. It was concluded that index equations designed to improve beef carcasses need to incorporate carcass information in an index. Analysis of serially measured fat thickness, longissimus muscle area, body weight, hip height, and ultrasound percentage intramuscular fat showed a limitation in the use of growth models based on pooled data. Therefore, it was concluded that regression parameters from a withinanimal regression of a serially measured trait on age, averaged by sex and breed, are the best choice in describing growth and adjusting data to a constant age end point. at Rhodes were, 1.28,-.57 and .92

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Feedlot Performance and Carcass Traits of Progeny of Hereford, Hereford × Holstein and Holstein Cows

Cited by 4 publications

References 1 publication

Neutral detergent fiber concentration in corn silage influences dry matter intake, diet digestibility, and performance of Angus and Holstein steers2

Neutral detergent fiber concentration in corn silage influences dry matter intake, diet digestibility, and performance of Angus and Holstein steers2

Carcass Tissue Yield and Distribution in Three Biological Types of Cattle Fed Grain or Forage-Based Diets

Selection practices and evaluation of growth and composition in three lines of synthetic beef cattle

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