Carcass characteristics of lambs fed diets with increasing levels of crude glycerin
| Autor: | Daniel Barros Cardoso, Adriana Guim, Gilcifran Prestes de Andrade, Caio Alves da Costa, Francisco Fernando Ramos de Carvalho, Andreza Guedes de Oliveira Nascimento, Gabriela Gonçalves da Silva, Michel do Vale Maciel |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
sheep
animal diseases lcsh:Animal biochemistry glycerol Biology Body weight Crossbreed Article Ruminant Nutrition and Forage Utilization chemistry.chemical_compound meat Carcass weight Animal science Glycerol Dry matter lcsh:QP501-801 lcsh:SF1-1100 digestive oral and skin physiology 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences 040201 dairy & animal science chemistry Animal Science and Zoology lcsh:Animal culture performance Food Science energy |
| Zdroj: | Asian-Australasian Journal of Animal Sciences, Vol 32, Iss 12, Pp 1882-1888 (2019) Asian-Australasian Journal of Animal Sciences |
| ISSN: | 1976-5517 1011-2367 |
| Popis: | Objective An experiment was conducted to evaluate the effects of increasing levels of crude glycerin (0%, 6%, 12%, and 18%) used as a substitute for corn in lamb feed on the quantitative characteristics of the carcass. Methods A total of 40 crossbred Santa Inês lambs that were four months old with a mean initial weight of 21.0±0.8 kg were randomly distributed in four treatments with ten replicates. The animals were slaughtered after 66 days of confinement. The effects of crude glycerin as a replacement for corn in the diet of the lambs on the carcass characteristics, commercial cut weight and yield and carcass measurements were studied. Results There was an increasing linear effect for body weight at slaughter with the replacement of corn by crude glycerin. The dry matter and metabolizable energy intakes, weight of the empty body, hot carcass weight and cold carcass weight showed a quadratic effect, with maximum crude glycerin levels estimated at 10.9%, 9.8%, 10.83%, 11.78%, and 11.35%, respectively. The initial pH was not influenced by the replacement of corn for crude glycerin, while the final pH presented a quadratic effect. The other parameters of the carcass and the weights and yields of commercial cuts were not influenced. There was also no effect of the diets on carcass morphometric measurements, except for the thoracic perimeter and the carcass compactness index, which presented quadratic and linear effects, respectively. Conclusion Crude glycerin can replace up to 18% of corn because it favours muscle tissue deposition without promoting changes in the main carcass characteristics of lambs. |
| Databáze: | OpenAIRE |
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