Fecha/hora: 03/06/2024 04:34:25

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 29/01/2020
Fecha de la última actualización: | 29/01/2020
Autoria: | CALVET, S.; ESTELLÉS, F.; HERMIDA, B.; BLUMETTO, O.; TORRES, A.G.
Afiliación: | S. CALVET, Institute of Animal Science and Technology, Universidad Politécnica de Valencia, Valencia, Spain; F. ESTELLÉS, Institute of Animal Science and Technology, Universidad Politécnica de Valencia, Valencia, Spain; B. HERMIDA, Department of Environment and Soil Sciences, Universitat de Lleida, Lleida, Spain; OSCAR RICARDO BLUMETTO VELAZCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A. G. TORRES, Institute of Animal Science and Technology, Universidad Politécnica de Valencia, Valencia, Spain.
Título: | Experimental balance to estimate efficiency in the use of nitrogen in rabbit breeding.
Año de publicación: | 2008
Fuente/Imprenta: | World Rabbit Science, October 2008, Volume 16, Issue 4, Pages 205-211.
Descripción Física: | 2-s2.0-58849129743
ISSN: | 1257-5011
Idioma: | Inglés
Notas: | Article history: Received February 2008 / Accepted July 2008.

Contenido:

ABSTRACT.
Defining the composition and properties of manure in livestock production is critical in order to minimise possible environmental impacts stemming from its management. In this study, a nitrogen balance was carried out during two identical fattening periods (Experiments 1 and 2) in growing rabbits from weaning (age 28 d and live weight about 0.6 kg) to slaughter (age 61 d and live weight about 1.8 kg). The breeding conditions were typical for Spanish rabbit production. The objectives were to quantify the total nitrogen excreted by the animals and to estimate the average efficiency in the use of this nutrient, in comparison to other species. Animal weight, feed intake, and the production of faeces and urine were monitored weekly in a set of eight cages with nine rabbits in each, performing weekly analyses for nitrogen content in feed, urine and faeces. The overall nitrogen excretion was 50.2 g N per animal in Experiment 1 and 46.9 g N per animal in Experiment 2, which corresponded to about 58% of the total nitrogen intake. Urine and faeces contributed to overall nitrogen excretion in approximately the same proportions. The nitrogen excretion ratio was 40 grams per kilogram of animal produced. According to this ratio, rabbit breeding is less efficient in the use of nitrogen than raising broilers, but more than fattening pigs. 
© WRSA, UPV, 2003.

Palabras-Clave: | Balance; Excretion; Fattening rabbits; Manure; Nitrogen.
Thesagro: | CUNICULTURA.
Categoría del tema: | L02 Alimentación animal
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/14094/1/615-1159-1-SM.pdf
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (102130-1) - PXI - AP - DD - PP/WORLD RABBIT SCIENCE/2008 -  -  - DIS