Influence of tannic acid application on alfalfa hay: in vitro rumen fermentation, serum metabolites and nitrogen balance in sheep

Getachew, G.; Pittroff, W.; DePeters, E.J.; Putnam, Daniel H.; Dandekar, Abhaya M.; Goyal, Sneh

doi:10.1017/s1751731107001486

Cited by 15 publications

(11 citation statements)

References 52 publications

(62 reference statements)

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“…DM and NDF apparent digestibilities were not affected by the experimental diets. These results are consistent with some previous studies (Getachew et al 2008a). In contrast to our findings, Zimmer and Cordesse (1996) observed that DM, OM and NDF digestibilities were decreased by hydrolysable tannins.…”

Section: Intake Apparent Digestibility and N Balancesupporting

confidence: 93%

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Effects of pistachio by-product in replacement of lucerne hay on microbial protein synthesis and fermentative parameters in the rumen of sheep

et al. 2012

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This study was conducted to evaluate the effect of partial and total substitution of lucerne hay with pistachio by-product on nutrient intake, apparent digestibility, rumen fermentation, digesta kinetics, blood metabolites, nitrogen retention and microbial protein synthesis in Baloochi sheep. Six sheep with a bodyweight of 40.1 ± 1.77 kg fitted with ruminal and abomasal cannulae were assigned at random to three diets in a double 3 × 3 Latin-square design. The dietary treatments included a control (basal diet), low pistachio by-product diet (50% of the lucerne hay in the basal diet was replaced by pistachio by-product), and high pistachio by-product diet (all of the lucerne hay in the basal diet was replaced by pistachio by-product). The daily basal diet was 500 g/kg DM lucerne hay, 250 g/kg DM wheat straw, 210 g/kg DM barley grain, 30 g/kg DM cotton seed meal, 8 g/kg DM vitamin–mineral supplement and 2 g/kg DM salt. Faeces and urine were collected for 8 days and used to estimate digestibility, nitrogen retention and microbial protein synthesis. Sheep were dosed ruminally with Cr-EDTA (2.27 g/L) and rumen samples were evaluated for pH, volatile fatty acids, ammonia nitrogen concentrations and digesta kinetics. The intake of neutral detergent fibre, purine derivatives excretion, volatile fatty acid concentrations in the rumen and ammonia nitrogen in the abomasum decreased (P < 0.05). Ether extract intake and ruminal pH was increased at 5 h after feeding (P < 0.05) as the level of pistachio by-product in the diet increased. Total pistachio by-product replacement for lucerne hay increased (P < 0.05) apparent digestibility of nitrogen, ether extract, organic matter and nitrogen retention and decreased (P < 0.05) microbial protein synthesis, efficiency of microbial protein synthesis and ammonia nitrogen in the rumen. The inclusion of pistachio by-product had no effect on blood metabolites and digesta kinetics. Based on these results it was concluded that pistachio by-product can be considered as a useful replacement for lucerne hay in the diet of Baloochi sheep without any negative impacts on their responses. Moreover, pistachio by-product inclusion in diet improved nitrogen metabolism in Baloochi sheep.

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Section: Intake Apparent Digestibility and N Balancesupporting

confidence: 93%

“…DM, OM and N intake were similar across treatments. Similar results were observed by others (Vahmani and Naserian 2006;Getachew et al 2008a;Gholizadeh et al 2010). Gholizadeh et al (2009) reported that replacement of PB for beet pulp decreased DM intake in Baloochi sheep.…”

Section: Intake Apparent Digestibility and N Balancesupporting

confidence: 92%

Effects of pistachio by-product in replacement of lucerne hay on microbial protein synthesis and fermentative parameters in the rumen of sheep

et al. 2012

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“…Conversely, the high urinary N excretion for lucerne (S0) results from the higher digestible N content and the higher ruminal N degradability of lucerne compared with sainfoin (quadratic contrast, Figure 3). Getachew et al (2008a) observed higher faecal N as the tannic acid level on lucerne hay was increased. Tiemann et al (2008) studied the effect of using two tannin-rich shrub legume species as replacements for a herbaceous high-quality legume (Vigna unguiculata) on the nutritive value of a diet composed of tropical grasses (Brachiaria brizantha and V. unguiculata).…”

Section: N Utilisationmentioning

confidence: 81%

Mixing sainfoin and lucerne to improve the feed value of legumes fed to sheep by the effect of condensed tannins

Aufrere

Dudilieu

Andueza

et al. 2013

Animal

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The aim of this study was to investigate whether the use of sainfoin-based condensed tannins (CT) enhances feed value when given with tannin-free legumes (lucerne) to sheep. The experiments were conducted with fresh sainfoin and lucerne harvested at two stages (vegetative stage as compared with early flowering) in the first growth cycle. Fresh sainfoin and lucerne forages were combined in ratios of 100 : 0, 75 : 25, 25 : 75 and 0 : 100 (denoted S100, S75, S25 and S0, respectively). Voluntary intake, organic matter digestibility (OMD) and nitrogen (N) retention were measured in sheep fed the different sainfoin and lucerne mixtures. Loss of dry matter (DM) and N from polyester bags suspended in the rumen, abomasum and small intestine (SI) was also measured using rumen-fistulated sheep and intestinally fistulated sheep. The CT content in sainfoin (S100) decreased with increasing percentage of lucerne in the mixture (mean value from 58 g/kg DM for S100 to 18 g/kg DM for S25) and with growth stage (S100: 64 to 52 g/kg DM). OMD did not differ between different sainfoin/lucerne mixture ratios. Sainfoin and lucerne had an associative effect (significant quadratic contrast) on voluntary intake, N intake, total-tract N digestibility, N in faeces and urine (g/g N intake) and N retained (g/g N intake). Compared with lucerne mixtures (S0 and S25), high-sainfoin-content mixtures (S100 and S75) increased the in situ estimates of forage N escaping from the rumen (from 0.162, 0.188 for S0 and S25 to 0.257, 0.287 for S75 and S100) but decreased forage N intestinal digestibility (from 0.496, 0.446 for S0 and S25 to 0.469, 0.335 for S75 and S100). The amount of forage N disappearing from the bags in the SI (per g forage N) was the highest for high-sainfoin mixtures (from 0.082, 0.108 for S100 and S75 to 0.056, 0.058 for S25 and S0, P , 0.001). Rumen juice total N (tN) and ammonia N (NH3-N) values were the lowest in the high-sainfoin diet (mean tN 0.166 mg/g in S100 as compared with 0.514 mg/g in S0; mean NH3-N 0.104 mg/g in S100 as compared with 0.333 mg/g in S0, P , 0.001).Keywords: ruminants, in vivo, condensed tannins, sainfoin-lucerne mixtures. ImplicationsLucerne is favoured for its high yield and nutritional quality, but is seldom grazed in pure stands as it causes bloating. Condensed tannins (CT)-containing legumes do not cause bloating and form CT-protein complexes that are stable and insoluble at rumen pH. Several papers have focused on the effect of CT on the nutritive value of CT-containing forages. The aim of this study was to investigate whether the use of sainfoin CT enhances feed value when given with tannin-free legumes (lucerne). We tested the effects of different sainfoin/lucerne proportions on voluntary intake, in vivo digestibility and in situ ruminal and intestinal digestibility in sheep.

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“…Lower NDF translates into both increased DMI and milk yield within a forage family [3]. Regarding alfalfa protein, approximately 80% is degraded in the rumen of polygastric animals, but addition of tannins to alfalfa feed decreases rumen protein degradability and increases protein absorption [30].…”

Section: Forage Qualitymentioning

confidence: 99%

Nutrient Composition, Forage Parameters, and Antioxidant Capacity of Alfalfa (Medicago sativa, L.) in Response to Saline Irrigation Water

et al. 2015

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Although alfalfa is moderately tolerant of salinity, the effects of salinity on nutrient composition and forage parameters are poorly understood. In addition, there are no data on the effect of salinity on the antioxidant capacity of alfalfa. We evaluated four non-dormant, salinity-tolerant commercial cultivars, irrigated with saline water with electrical conductivities of 3.1, 7.2, 12.7, 18.4, 24.0, and 30.0 dS·m −1 , designed to simulate drainage waters from the California Central Valley. Alfalfa shoots were evaluated for nutrient composition, forage parameters, and antioxidant capacity. Salinity significantly increased shoot N, P, Mg, and S, but decreased Ca and K. Alfalfa micronutrients were also affected by salinity, but to a lesser extent. Na and Cl increased significantly with increasing salinity. Salinity slightly improved forage parameters by significantly increasing crude protein, the net energy of lactation, and the relative feed value. All cultivars maintained their antioxidant capacity regardless of salinity level. The results indicate that alfalfa can tolerate moderate to high salinity while maintaining nutrient composition, antioxidant capacity, and slightly improved forage parameters, thus meeting the standards required for dairy cattle feed. OPEN ACCESSAgriculture 2015, 5 578

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Influence of tannic acid application on alfalfa hay: in vitro rumen fermentation, serum metabolites and nitrogen balance in sheep

Cited by 15 publications

References 52 publications

Effects of pistachio by-product in replacement of lucerne hay on microbial protein synthesis and fermentative parameters in the rumen of sheep

Effects of pistachio by-product in replacement of lucerne hay on microbial protein synthesis and fermentative parameters in the rumen of sheep

Mixing sainfoin and lucerne to improve the feed value of legumes fed to sheep by the effect of condensed tannins

Nutrient Composition, Forage Parameters, and Antioxidant Capacity of Alfalfa (Medicago sativa, L.) in Response to Saline Irrigation Water

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