Plant extracts containing cinnamaldehyde, eugenol and capsicum oleoresin added to feedlot cattle diets ruminal environment, short term intake pattern and animal performance
The objective was to evaluate effects of adding a blend of essential oil compounds on ruminal fermentation and animal performance of feedlot cattle in comparison to sodium monensin. In Exp. 1, 24 angus steers [initial weight 141 more or less 6.6kg] were blocked by weight into 4 groups and randomly a...
Otros Autores: | , , , , |
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Formato: | Artículo |
Lenguaje: | Inglés |
Materias: | |
Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2012Geraci.pdf LINK AL EDITOR |
Aporte de: | Registro referencial: Solicitar el recurso aquí |
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245 | 1 | 0 | |a Plant extracts containing cinnamaldehyde, eugenol and capsicum oleoresin added to feedlot cattle diets |b ruminal environment, short term intake pattern and animal performance |
520 | |a The objective was to evaluate effects of adding a blend of essential oil compounds on ruminal fermentation and animal performance of feedlot cattle in comparison to sodium monensin. In Exp. 1, 24 angus steers [initial weight 141 more or less 6.6kg] were blocked by weight into 4 groups and randomly allocated to 8 pens of 3 steers. Treatments were monensin [46.7mg/kg dietary dry matter [DM]], or plant extracts [PE; 266mg/steer/d of cinnamaldehyde and eugenol+133mg/steer/d of capsicum oleoresin] added to a mineral mixture. The experiment lasted 84d and was divided in 2 periods of 0-44 and 45-84d. Diets were fed once daily and consisted of a corn grain based concentrate fed ad libitum, plus 200g alfalfa hay/steer/d as fed. The DM intake, average daily gain [ADG], feed conversion ratio [FCR] and rate of backfat deposition [BFD] were determined throughout the study. Short term intake patterns were evaluated by visual appraisal. In Exp. 2, two ruminally fistulated steers were used in a crossover design to determine how the ruminal fermentation variables pH, NH 3-N and volatile fatty acids [VFA] were affected by PE or monensin. Compared to monensin, PE did not alter overall DM intake [0.124kg/BW 0.75 versus 0.123kg/BW 0.75], FCR [0.21 versus 0.20], BFD [1.87mm/mo versus 1.76mm/mo], or longissimus dorsi muscle [LM] area [6.56cm 2/mo versus 6.69cm 2/mo] for PE and monensin, respectively. However, a treatmentÃ-period interaction occurred [P=0.02] for ADG, with steers fed PE having a higher [P=0.01] ADG in the second period [1.43kg/d versus 1.23kg/d for PE and monensin, respectively]. Short term intake patterns were not altered by PE compared to monensin, as steers visited the feeders a similar number of times and the length of each visit was also similar [11.5min versus 10.6min and 8.28min versus 9.57min for PE and monensin, respectively]. Although ruminal pH was not affected [5.55 versus 6.05 for PE and monensin, respectively], ruminal NH 3-N was lowered by PE [10.78mg/dl versus 20.05mg/dl, P=0.02]. Ruminal total VFA concentrations did not differ between treatments [80.7mM versus 62.5mM], and feeding PE did not alter ruminal acetate [48.5mol/100mol versus 58.2mol/100mol], or propionate [32.8mol/100mol versus 25.2mol/100mol, P=0.65] proportions. Results show that steers fed PE performed equivalently to those fed monensin in a high concentrate diet, and that some productive variables were improved with PE feeding. | ||
653 | 0 | |a FEEDLOT | |
653 | 0 | |a INTAKE PATTERN | |
653 | 0 | |a PERFORMANCE | |
653 | 0 | |a PLANT EXTRACTS | |
653 | 0 | |a ANIMALIA | |
653 | 0 | |a BOS | |
653 | 0 | |a CAPSICUM OLEORESIN | |
653 | 0 | |a MEDICAGO SATIVA | |
653 | 0 | |a ZEA MAYS | |
700 | 1 | |a Geraci, José Ignacio |9 21186 | |
700 | 1 | |a Garciarena, Alberto Daniel |9 64028 | |
700 | 1 | |a Gagliostro, Gerardo A. |9 23486 | |
700 | 1 | |a Beauchemin, Karen A. |9 72076 | |
700 | 1 | |9 10874 |a Colombatto, Darío | |
773 | |t Animal Feed Science and Technology |g Vol.176, no.1-4 (2012), p.123-130 | ||
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900 | |a ^tPlant extracts containing cinnamaldehyde, eugenol and capsicum oleoresin added to feedlot cattle diets^sruminal environment, short term intake pattern and animal performance | ||
900 | |a ^aGeraci^bJ.I. | ||
900 | |a ^aGarciarena^bA.D. | ||
900 | |a ^aGagliostro^bG.A. | ||
900 | |a ^aBeauchemin^bK.A. | ||
900 | |a ^aColombatto^bD. | ||
900 | |a ^aGeraci^bJ. I. | ||
900 | |a ^aGarciarena^bA. D. | ||
900 | |a ^aGagliostro^bG. A. | ||
900 | |a ^aBeauchemin^bK. A. | ||
900 | |a ^aColombatto^bD. | ||
900 | |a ^aGeraci^bJ.I.^tInstituto Nacional de TecnologÃa Agropecuaria, Km 73.5 Ruta Nacional 226, 7620 Balcarce, Argentina | ||
900 | |a ^aGarciarena^bA.D.^tResearch Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, T1J 4B1, Canada | ||
900 | |a ^aGagliostro^bG.A.^tDepartamento de Producción Animal, Facultad de AgronomÃa, Universidad de Buenos Aires, Av. San MartÃn 4453, C1417DSQ Buenos Aires, Argentina | ||
900 | |a ^aBeauchemin^bK.A.^tConsejo Nacional de Investigaciones CientÃficas y Técnicas [CONICET], Argentina | ||
900 | |a ^aColombatto^bD. | ||
900 | |a ^tAnimal Feed Science and Technology^cAnim. Feed Sci. Technol. | ||
900 | |a en | ||
900 | |a 123 | ||
900 | |a ^i | ||
900 | |a Vol. 176, no. 1-4 | ||
900 | |a 130 | ||
900 | |a FEEDLOT | ||
900 | |a INTAKE PATTERN | ||
900 | |a PERFORMANCE | ||
900 | |a PLANT EXTRACTS | ||
900 | |a ANIMALIA | ||
900 | |a BOS | ||
900 | |a CAPSICUM OLEORESIN | ||
900 | |a MEDICAGO SATIVA | ||
900 | |a ZEA MAYS | ||
900 | |a The objective was to evaluate effects of adding a blend of essential oil compounds on ruminal fermentation and animal performance of feedlot cattle in comparison to sodium monensin. In Exp. 1, 24 angus steers [initial weight 141 more or less 6.6kg] were blocked by weight into 4 groups and randomly allocated to 8 pens of 3 steers. Treatments were monensin [46.7mg/kg dietary dry matter [DM]], or plant extracts [PE; 266mg/steer/d of cinnamaldehyde and eugenol+133mg/steer/d of capsicum oleoresin] added to a mineral mixture. The experiment lasted 84d and was divided in 2 periods of 0-44 and 45-84d. Diets were fed once daily and consisted of a corn grain based concentrate fed ad libitum, plus 200g alfalfa hay/steer/d as fed. The DM intake, average daily gain [ADG], feed conversion ratio [FCR] and rate of backfat deposition [BFD] were determined throughout the study. Short term intake patterns were evaluated by visual appraisal. In Exp. 2, two ruminally fistulated steers were used in a crossover design to determine how the ruminal fermentation variables pH, NH 3-N and volatile fatty acids [VFA] were affected by PE or monensin. Compared to monensin, PE did not alter overall DM intake [0.124kg/BW 0.75 versus 0.123kg/BW 0.75], FCR [0.21 versus 0.20], BFD [1.87mm/mo versus 1.76mm/mo], or longissimus dorsi muscle [LM] area [6.56cm 2/mo versus 6.69cm 2/mo] for PE and monensin, respectively. However, a treatmentÃ-period interaction occurred [P=0.02] for ADG, with steers fed PE having a higher [P=0.01] ADG in the second period [1.43kg/d versus 1.23kg/d for PE and monensin, respectively]. Short term intake patterns were not altered by PE compared to monensin, as steers visited the feeders a similar number of times and the length of each visit was also similar [11.5min versus 10.6min and 8.28min versus 9.57min for PE and monensin, respectively]. Although ruminal pH was not affected [5.55 versus 6.05 for PE and monensin, respectively], ruminal NH 3-N was lowered by PE [10.78mg/dl versus 20.05mg/dl, P=0.02]. Ruminal total VFA concentrations did not differ between treatments [80.7mM versus 62.5mM], and feeding PE did not alter ruminal acetate [48.5mol/100mol versus 58.2mol/100mol], or propionate [32.8mol/100mol versus 25.2mol/100mol, P=0.65] proportions. Results show that steers fed PE performed equivalently to those fed monensin in a high concentrate diet, and that some productive variables were improved with PE feeding. | ||
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