Fecha/hora: 20/09/2024 21:18:32

Biblioteca(s): 	INIA Las Brujas; INIA Treinta y Tres.	
Fecha corriente: 	01/11/2021	
Fecha de la última actualización: 	05/11/2021	
Autoria: 	DE AZEVEDO, E.B.; SAVIAN, J.V.; DO AMARAL, G. A.; DE DAVID, D. B.; GERE, J.I.; MOURA, M.; BREMM, C.; JOCHIMS, F.; ZUBIETA, A. S.; GONDA, H. L.; BAYER, C.; DE FACCIO CARVALHO, P.C.	
Afiliación: 	EDUARDO BOHRER DE AZEVEDO, Federal University of Pampa, Itaqui, RS, Brazil; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GLÁUCIA AZEVEDO DO AMARAL, Department of Agricultural Diagnosis and Research, Hulha Negra, RS, Brazil; DIEGO BITENCOURT DE DAVID, Department of Agricultural Diagnosis and Research, São Gabriel, RS, Brazil; JOSÉ IGNACIO GERE, Unidad de Investigaciones Y Desarrollo de Las Ingenierías, Universidad Tecnológica Nacional, Consejo Nacional de Investigaciones Científcas Y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina; MARTA MOURA KOHMANN, Range Cattle Research and Education Center, University of Florida, Ona, FL, USA; CAROLINA BREMM, Grazing Ecology Research Group, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil; FELIPE JOCHIMS, Research Center for Family Farming (Epagri/Cepaf), Santa Catarina Research and Rural Extension Company (Epagri), Chapecó, SC, Brazil; ANGEL SÁNCHEZ ZUBIETA, Department of Agricultural Diagnosis and Research, Hulha Negra, RS, Brazil; HORACIO LEANDRO GONDA, Swedish University of Agricultural Sciences, Uppsala, Sweden; CIMÉLIO BAYER, Department of Soil Science, Federal University of Rio Grande Do Sul, Porto Alegre, RS, Brazil; PAULO CÉSAR DE FACCIO CARVALHO, Department of Agricultural Diagnosis and Research, Hulha Negra, RS, Brazil.	
Título: 	Feed intake, methane yield, and efciency of utilization of energy and nitrogen by sheep fed tropical grasses.	
Año de publicación: 	2021	
Fuente/Imprenta: 	Tropical Animal Health and Production, 2021, volume 53, Article number 452. doi: https://doi.org/10.1007/s11250-021-02928-4	
DOI: 	10.1007/s11250-021-02928-4	
Idioma: 	Inglés	
Notas: 	Article history: Received: 10 July 2020; Accepted: 10 September 2021; Published online: 18 September 2021.	
Contenido: 	ABSTRACT. - Forage allowance impacts dry matter (DM) intake and the use of nutrients by ruminants. The efficient use of protein and energy from pasture is related to better livestock performance and lower environmental impacts. The aims of this study were to evaluate the effect of forage allowance levels on intake, digestibility, nitrogen (N) and energy balance, and methane (CH4) emissions by lambs fed fresh pearl millet [Pennisetum americanum (L.) Leeke]. An indoor trial was performed using lambs in a completely randomized design with four treatments [forage allowance at 1.5, 2.0, 2.5 kg DM/100 kg of live weight (LW), and ad libitum allowing 20% of refusals] and four replicates (lambs). Forage intake, digestibility, total urine and feces excretion, and CH4 emission were measured to calculate N and energy balances. An increase in forage allowance resulted in a linear increase in lamb forage intake, N retention, and metabolizable energy intake. Moreover, lamb CH4 emission (g/
day) also increased with greater forage allowance, while CH4 yield decreased linearly as forage allowance increased. Our results indicate that maximizing forage intake improves N and energy use efficiency and mitigates CH4 yield and decreases CH4 conversion factor (Ym) by lambs fed pearl millet forage. Thus, management strategies that optimize intake of tropical forages by ruminants improve the use of nutrients ingested and mitigates negative impacts to the environment.
© The Author(s), under exclusive licence to Springer Nature B.V. 2021	
Palabras-Clave: 	Forage allowance; Forage digestibility; Greenhouse gas emissions; Nutrient use; Pearl millet.	
Categoría del tema: 	F01 Cultivo	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (102829-1) - PXI - AP - DD - Tropical Animal Health & Production/2021 -  -  - DIS
TT - (103425-1) - PXI - AP - DD - Trop. Ani. Health Prod./2021/SAVIAN -  -  - DIS