Consulta: subjectFacets:"Litter quality"
Registros recuperados: 5
Data/hora: 06/06/2024 08:08:05

Predicting leaf litter decomposability: an exploratory assessment of leaf traits, litter traits and spectral properties in six Mediterranean herbaceous species
Provedor de dados: 67
Autores: Pérez-Harguindeguy,Natalia; Cortez,Jacques; Garnier,Eric; Gillon,Dominique; Poca,María.
Several studies attempted to find quick and easy methods to assess litter decomposability. We tested three frequently used methods on 6 Mediterranean herbaceous species from different plant families and life forms: (1) &amp;#8216;green leaves traits&amp;#8217;: traits of living leaves related to the strategies of living plants; (2) &amp;#8216;litter traits&amp;#8217;: litter respiration during in vitro incubation and initial litter properties; and (3) &amp;#8216;leaf and litter spectral properties&amp;#8217;: the spectral characteristics (NIR) of green leaves and litter. We analyzed the relationship between these methods and their consistency to assess litter decomposability in the field. Green leaves spectral properties were the most accurate to predict...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NIRS; Forbs; Grasses; Litter decomposition; Litter quality; Functional markers.
Ano: 2015
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2015000100007

The Benefit of L-Threonine Supplementation on Growth Performance, Carcass Characteristics, Intestinal Morphology and Litter Quality of Broilers.
Provedor de dados: 89
Autores: Al-Sagan,AA; Khalil,S; Smith,MP.
ABSTRACT This study was carried out to investigate the effect of dietary L-Threonine supplementation on broiler performance, carcass characteristics, duodenal histo-morphology and litter analysis. It was hypothesised that the overall broiler performance would be improved in threonine adequate diets with reduced environmental impact when using L-threonine supplementation. A total of 144-sexed Ross 308 broiler chicks were randomly allocated into 3 dietary treatments. Each treatment was replicated 6 times with 8 birds per replicate (4 male and 4 female). Treatment group 1 served as threonine deficient group, fed with a diet with all limiting amino acids met except threonine as no synthetic form was supplied. Treatment group 2 served as threonine adequate high...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crude protein; Threonine; Broilers; Carcass characteristics; Litter quality; Intestinal morphology.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400753

Multi-Attribute Evaluation and Selection of Broiler House for the Low Prevalence of Footpad Lesion
Provedor de dados: 89
Autores: Garcia,RG; Roriz,BC; Nääs,IA; Lima,NDS; Sgavioli,S; Caldara,FR.
ABSTRACT Intensive broiler production requires large flock density, which compromises litter quality and increases the prevalence of footpad lesions. The present study aimed at comparing the incidence of footpad dermatitis of broilers reared in two different rearing environments. Data from two broiler houses were recorded during 42 d. Air temperature and relative humidity; litter moisture, pH, and temperature; footpad surface temperature; and the incidence of footpad lesions was investigated. Litter quality was analyzed in a 2 x 4 factorial arrangement, with two house types (dark house or open-sided house) and four rearing phases (21, 28, 35, and 42 d of growth), with four replicates per treatment using 12 replicates. Four replicates were used for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Litter quality; Rearing environment; Broiler management; Footpad dermatitis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100301

Performance and Carcass Yield of Broilers Fed Crude Glycerin at Differing Inclusion Levels
Provedor de dados: 89
Autores: Broch,J; Henz,J; Nunes,R; Eyng,C; Savaris,V.
ABSTRACT This experiment was conducted to evaluate the effect of crude glycerin at differing inclusion levels on performance and carcass characteristics of broilers and litter moisture. 960 broilers of 21-42 days of age were used in a completely randomized design with six crude glycerin inclusion levels (0, 3, 6, 9, 12, 15%), with eight replicates containing 20 broiler chickens per experimental unit. There was a quadratic effect (p&lt;0.05) for weight gain, feed intake and feed:gain ratio from 21 to 42 days of age. Higher levels of crude glycerin in diets increased (40.24%, p&lt;0.05) the litter moisture and reduced (6.04%, p&lt;0.05) the viability of of the birds. There were no effects (p&gt;0.05) on carcass yield, breast, or liver percentages. However,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: By-products; Fat deposition; Litter quality; Protein deposition.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400797

Effect of litter treatment on growth performance, intestinal development, and selected cecum microbiota in broiler chickens
Provedor de dados: 96
Autores: Taherparvar,Gilaneh; Seidavi,Alireza; Asadpour,Leila; Payan-Carreira,Rita; Laudadio,Vito; Tufarelli,Vincenzo.
ABSTRACT The objective of this study was to determine whether the type of bedding materials (sand, wood shavings, and paper) and of two chemical amendments (lime and bentonite) could interfere with litter quality (moisture, pH, and total bacterial counts), thereby influencing also the growth performance and the development of intestinal traits and cecum microbiota of chickens. Two hundred and seventy male Ross 308 broiler chickens were randomly assigned into nine treatment groups with three replicates per treatment. Broiler productive parameters, relative weight of different intestinal segments, content of cecal total bacterial counts (total aerobic bacteria, Lactobacilli, and coliforms), as well as litter moisture, pH, and total aerobic bacteria and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bedding material; Broilers; Growth; Litter quality; Microbiota.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000500257