Alfalfa as a supplement of dried cornstalk diets: Associative effects on intake, digestibility, nitrogen metabolisation, rumen environment and hematological parameters in sheep

Wang, Deli; Fang, Jian; Xing, Feifei; Yang, Lei

doi:10.1016/j.livsci.2007.02.018

Cited by 21 publications

(23 citation statements)

References 43 publications

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“…The curvilinear influence of lucerne supplementation has been observed on other rumen variables such as microbial protein synthesis efficiency and microbial biomass production (Broudiscou et al, 2001). Similar effects of lucerne hay supplementation of a roughage-based diet have also been reported in vivo (Wang et al, 2008).…”

Section: Discussionsupporting

confidence: 53%

Rumen digestion of rice straw structural polysaccharides: effect of ammonia treatment and lucerne extract supplementation in vitro

Agbagla-Dohnani

Cornu

Broudiscou

2012

animal

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The combined effects of lucerne (Medicago sativaL.) extract supplementation and ammonia treatment of rice straw (Oryza sativa, variety Thaibonnet) on the ruminal digestion of cell wall components were investigated in six continuous culture systems using a randomised complete block design. Data were fitted to second-order polynomial models. Untreated rice straw had higher contents of ash-free cell wall residues (CWR; 763v.687 g/kg dry matter (DM)) and non-cellulosic sugars (191v.166 g/kg DM) than treated rice straw. Ammoniation preferentially removed xylose, which resulted in a lower xylose-to-arabinose ratio (5.1v.5.8). In absence of lucerne supplementation and ammoniation, degradability coefficients were 0.54, 0.46, 0.58, 0.54, 0.42 and 0.60 for cellulose–glucose, xylose, arabinose, galactose, mannose and uronic acids, respectively. Both factors had significant effects on the microbial degradation of structural polysaccharides. With lucerne extract at an optimal level, ammonia treatment increased ash-free cell wall degradation by more than 10%. The degradability coefficients were increased by ammoniation without any significant interaction with lucerne extract, except for glucose, whose degradability was mostly influenced by lucerne extract in a curvilinear way. The comparison of regression coefficients in cell wall and CWR models suggested that ammoniation improved the degradabilities of xylose, galactose and mannose by partly solubilising the corresponding hemicelluloses and by improving the susceptibility of the remaining fraction to microbial attack, whereas it increased the degradability of arabinose only by favouring microbial attack.

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Section: Discussionsupporting

confidence: 53%

Rumen digestion of rice straw structural polysaccharides: effect of ammonia treatment and lucerne extract supplementation in vitro

Agbagla-Dohnani

Cornu

Broudiscou

2012

animal

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“…Reviews published recently have highlighted herbal plants as dietary supplements (26), among them alfalfa preparation (2,3). Recent studies have underlined its effectiveness on sheep (21,29), turkeys (19), laying hens (12), broiler chickens (8), and finally, pigs (14,15,22), where low alfalfa protein concentrate (APC) supplementation in the 2% -3% range caused higher weight gains and better feed conversion. Some research reports emphasise the effect of this preparation on the quality of animal product such as milk (5) and eggs (12), and on blood metabolic profile in humans (23,27).…”

Section: Introductionmentioning

confidence: 99%

Influence of alfalfa protein concentrate dietary supplementation on blood parameters of growing-finishing pigs

Pietrzak

Grela

2015

Bulletin of the Veterinary Institute in Pulawy

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The aim of the study was to analyse the effect of the feed additive alfalfa protein concentrate (APC), on pig health. The trial involved 40 crossbred gilts and 40 crossbred castrates (Polish Landrace × Polish Large White) × Duroc of 29.0 ± 0.5 kg initial body weight. Allocation of experimental animals was into four treatment groups: the control group (C) was fed standard mixtures, without APC addition; group E-15 was fed a basal diet supplemented with 1.5% APC; and groups E-30 and E-30P were fed diets with 3.0% APC inclusion. There were two feeding systems. In the first system, animals of groups C, E-15, and E-30 were fed continuously with suitable mixtures. The second feeding system was used in group E-30P where animals received the experimental or control mixture alternating at two-week intervals. The addition of APC supplement to diets significantly increased (P ≤ 0.05) red blood cell indices, i.e. haematocrit (Ht), red blood cell count (RBC), and haemoglobin concentration (Hb) in growing and finishing periods. The analysis of enzyme activity demonstrated a markedly higher activity of aspartate aminotransferase (AST), alanine aminotransferase (ALT), and especially alkaline phosphatase (ALP) in the blood plasma of pigs fed APC supplement. This increase may indicate a negative impact of APC on the animal's liver. A positive effect of dietary APC on blood lipid parameters was associated with a decreased level of total cholesterol and reduced low-density lipoprotein fraction. Analysis of the haematological and biochemical blood indices demonstrated that APC additive may affect animal health.

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“…Differences in ruminal starch digestion between (Offner et al, 2003) and within grains (Duran et al, 2004) as well as the associative effects (Mora et al, 2002;Wang et al, 2008) make it difficult to predict performance; therefore, simulation models are an option for evaluating diet characteristics and the economic impact of dietary changes. Models to predict bovine performance have been developed for different nutritional conditions (NRC, 2000;Tobias et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

A simulation model to predict body weight gain in lambs fed high-grain diets

Osorio

Mendoza

Plata

et al. 2015

Small Ruminant Research

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Alfalfa as a supplement of dried cornstalk diets: Associative effects on intake, digestibility, nitrogen metabolisation, rumen environment and hematological parameters in sheep

Cited by 21 publications

References 43 publications

Rumen digestion of rice straw structural polysaccharides: effect of ammonia treatment and lucerne extract supplementation in vitro

Rumen digestion of rice straw structural polysaccharides: effect of ammonia treatment and lucerne extract supplementation in vitro

Influence of alfalfa protein concentrate dietary supplementation on blood parameters of growing-finishing pigs

A simulation model to predict body weight gain in lambs fed high-grain diets

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