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| Registros recuperados: 13 | |
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| MATIAS, F. I.; VIDOTTI, M. S.; MEIRELES, K. G. X.; BARRIOS, S. C. L.; VALLE, C. B. do; CARLEY, C. A. S.; FRITSCHE-NETO, R.. |
| The breeding process in tropical segmental allopolyploid forage Urochloa is challenging due to the complex genetic control of the traits. Knowledge about genes associated with forage traits, expressed in the different cutting seasons, are extremely useful to support breeding programs and development of new cultivars. Thus, the aims of our study were (i) to identify genomic regions related to forage traits through genomewide association studies (GWAS), and (ii) to verify the influence of allele dosage on these results. A panel of 272 genotypes of Urochloa spp. [U. brizantha (Hoscht. ex A. Rich.) R. Webster ´ U. ruziziensis (Hoscht. ex A. Rich.) R. Webster] was evaluated in both the wet and dry seasons. The GWAS analyses were performed with 26,535 single... |
| Tipo: Artigo de periódico |
Palavras-chave: Tropical regions; Urochloa; Forage; Animal proteins; Cattle feeding; Animal performance; Pastures. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1117774 |
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| Duncan, Marvin R.; Taylor, Richard D.; Saxowsky, David M.; Koo, Won W.. |
| The five-state study area of the Northern Plains and Western Lakes States, Minnesota, Montana, North Dakota, South Dakota, and Wisconsin, has adequate feed supplies and feeder cattle to markedly increase cattle feeding. Feed costs in these states have historically been lower than in the Southern Plains States. However, higher transportation costs appear to offset that advantage. Close access to slaughter plants in these states could offset that transportation disadvantage. Backgrounding of cattle appears to be quite profitable and cattle feeding, especially in larger sized feedlots, can be profitable. However, the cattle feeding industry has an increasing level of excess capacity. To be successful, new feedlots in the Northern Plains and Western... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Cattle feeding; Northern Plains; Economies of scale; Cooperative ownership; Entrance strategies; Production Economics; Agribusiness. |
| Ano: 1997 |
URL: http://purl.umn.edu/23199 |
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| Duncan, Marvin R.; Taylor, Richard D.; Saxowsky, David M.; Koo, Won W.. |
| The five-state study area of the Northern Plains and Western Lakes States, Minnesota, Montana, North Dakota, South Dakota, and Wisconsin, has adequate feed supplies and feeder cattle to markedly increase cattle feeding. Feed costs in these states have historically been lower than in the Southern Plains States. However, higher transportation costs appear to offset that advantage. Close access to slaughter plants in these states could offset that transportation disadvantage. Backgrounding of cattle appears to be quite profitable and cattle feeding, especially in larger sized feedlots, can be profitable. However, the cattle feeding industry has an increasing level of excess capacity. To be successful, new feedlots in the Northern Plains and Western... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Cattle feeding; Northern Plains; Economies of scale; Cooperative ownership; Entrance strategies; Production Economics. |
| Ano: 1997 |
URL: http://purl.umn.edu/23338 |
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| Leuthold, Raymond M.; Noussinov, Mikhail A.. |
| Multiproduct optimal hedging for simulated cattle feeding is compared to alternative hedging strategies using weekly price data for 1983-95. Out-of-sample means and variances of hedged feeding margins using estimated hedge ratios for four commodities suggest that there is no consistent domination pattern among the alternative strategies, leaving the hedging decision up to the agent's degree of risk aversion. However, all hedging strategies significantly reduce the feeding margin's means and variances compared to no hedging, with variance reduction always exceeding 50%. Hedging results appear quite sensitive to the data set and its size. |
| Tipo: Journal Article |
Palavras-chave: Cattle feeding; Hedge ratios; Hedging strategies; Multiproduct hedging; Optimal hedging; Marketing. |
| Ano: 1999 |
URL: http://purl.umn.edu/14679 |
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| Belasco, Eric J.; Taylor, Mykel R.; Goodwin, Barry K.; Schroeder, Ted C.. |
| Cattle feeding enterprises operate amid variability originating in prices and production. This research explicitly models yield risks related to cattle feeding by relating the mean and variance of yield performance factors to observable conditioning variables. The results demonstrate that pen characteristics, such as entry weight, gender, placement season, and location influence the mean and variability of yield factors, defined as dry matter feed conversion, average daily gain, mortality, and animal health costs. Ex ante profit distributions, conditional on cattle placement characteristics, are derived through simulation methods to evaluate the effects of price or yield shocks on the distributional characteristics of expected profits. |
| Tipo: Journal Article |
Palavras-chave: Conditional variance; Production risk; Cattle feeding; Yields; Agribusiness; Livestock Production/Industries; Production Economics; Productivity Analysis; Risk and Uncertainty; D24; D81; Q12. |
| Ano: 2009 |
URL: http://purl.umn.edu/48761 |
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| Koontz, Stephen R.; Hoag, Dana L.; Brethour, John R.; Walker, Jodine L.. |
| The cattle industry batch markets animals in pens. Because of this, animals within any one pen can be both underfed and overfed. Thus, there is a production inefficiency associated with batch marketing. We simulate the value of sorting animals through weight and ultrasound measurements from original pens into smaller alternative marketing groups. Sorting exploits the production inefficiency and enables cattle feeding enterprises to avoid meat quality discounts, capture premiums, more efficiently use feed resources, and increase returns. The value of sorting is between $15 and $25 per head, with declining marginal returns as the number of sort groups increases. |
| Tipo: Journal Article |
Palavras-chave: Cattle feeding; Production efficiency; Simulation; Sorting; Value-based marketing; Ultrasound; Agribusiness; Livestock Production/Industries; Marketing; Research and Development/Tech Change/Emerging Technologies; C15; D21; D23; Q12. |
| Ano: 2008 |
URL: http://purl.umn.edu/47266 |
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| SALES, M. F. L.; PAULINO, M. F.; VALADARES FILHO, S. de C.; FIGUEIREDO, D. M. de; PORTO, M. O.; DETMANN, E.. |
| The objective of this experiment was to study the effects of different levels of supplementation on the performance, intake, digestibility, pH and rumen ammonia concentration in growing bulls grazing Brachiaria decumbens Stapf. pasture, during the dry-rainy transition season. For evaluation of performance, intake and digestibility, it was used 25 non-castrated steers at 11 months of age and initial average body weight of 270 kg, grouped in five plots of five animals each, following a completely randomized design. Each plot received one of the following feeding treatments: mineral mixture and supplement at the proportion of 0.5, 1.0, 1.5 and 2.0 kg/animal/day, corresponding to 0.18, 0.36, 0.54 and 0.72% of the average body weight of the animals. The area... |
| Tipo: Artigo de periódico |
Palavras-chave: Amônia ruminal; Rumen ammonia; Amoníaco ruminal; Dry-rainy transition season; Transição seca-águas; Suplementos dietéticos; Pastos forrajeros; Pastizales; Nutrición animal; Ganado de carne; Digestibilidad; Desempeño del crecimiento; Cebú; Alimentación de ganado; Terneros.; Gado de corte; Gado Zebu; Novilho de corte; Nutrição animal; Ganho de peso; Suplemento alimentar; Pastagem; Gramínea forrageira; Capim Brachiaria; Brachiaria decumbens; Digestibilidade; Performance; Consumo alimentar; Ph; Amônia; Beef cattle; Zebu; Calves; Animal nutrition; Cattle feeding; Dietary supplements; Pastures; Forage grasses; Urochloa decumbens; Digestibility; Growth performance.. |
| Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/902545 |
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| Registros recuperados: 13 | |
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