Influence of dietary supplementation with sunflower oil and quebracho tannins on growth performance and meat fatty acid profile of Awassi lambs

Kamel, H.E.M.; Al-Dobaib, S.N.; Salem, Abdelfattah Z.M.; López, Secundino; Alaba, Peter Adeniyi

doi:10.1016/j.anifeedsci.2017.11.006

Cited by 27 publications

(17 citation statements)

References 30 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is not possible to affirm this, however, if the experimental length were longer, it is possible that we could have observed effects of supplementation on body weight and weight gain, as were observed by researchers using 0.8% of quebracho in lamb diets [9]. A similar result was also reported when quebracho was included at 40 g of quebracho/kg (corresponding to 0.4%) of dry matter, significantly increasing the average daily gain in lambs, compared to control diets [15]. Researchers observed that the addition of chestnut tannins (0.5 and 1%) increased lamb growth under heat stress [16].…”

Section: Discussionsupporting

confidence: 81%

Addition of Tannin in Lamb Diets after Weaning: Impact on Performance and Hematological and Biochemical Variables

Lucianer

Silva

Cazarotto

et al. 2019

Acta Scientiae. Vet.

View full text Add to dashboard Cite

Background:In ruminants, the weaning period is a critical phase, because these young animals are allocated to various facilities and receive different feeds. Alternatively, supplements and additives can be used. The tannins are polyphenols produced by plants; constitute a group of complex secondary metabolic factors that inhibit the consumption by herbivores or the development of microbial agents. The objective of this study was to determine whether the addition of condensed tannin extract from quebracho trees (Schinopsis lorentzii) in lamb diets after weaning would have beneficial effects on growth and health. Materials, Methods & Results:Forty lambs were assigned randomly to 1 of 4 treatments (10 lambs/treatment): T1 (0%; control), T2, T3, and T4 was 0.3, 0.6 and 0.9 % of quebracho extract in the diet, respectively. The T2 (0.3%) lambs had greater body condition scores (P = 0.005), and although they did not differ significantly, they had numerically greater body weight (P = 0.067) and weight gain (P = 0.072), than the control lambs. The anthelmintic and anticoccidial effect was not possible to verify because no animals in any group were naturally infected by helminths or coccidia. The T4 lambs had greater numbers of erythrocytes (days 10 and 40) [P < 0.05], greater hemoglobin concentrations (days 10 and 40), and greater numbers of total leukocytes (day 10) as a result of greater numbers of neutrophil at the end of the adaptation period (day 10) compared to T1. The T3 and T4 lambs had greater (P < 0.05) serum total protein (days 10 and 40) because of greater concentration of serum globulins (days 10 and 40) compared to T1, suggesting that the addition of tannin stimulated the immune system. The addition of quebracho in the diet affected serum concentrations of glucose, triglycerides, and cholesterol at some times and treatments (P < 0.05). However, these changes did not follow a pattern; this finding only suggested that there was an influence on the metabolism of carbohydrates and lipids. The T2 lambs showed no differences on hemogram or serum clinic biochemistries (P > 0.05); however, they had a greater body condition scores than T1 (P < 0.05). Discussion: According to literature, if condensed tannins are supplied in moderate quantities (≤ 5% of diet) to ruminants, they can prevent bloating, increase the supply of undegraded protein in the rumen and improve the use of essential amino acids. It is also known that tannins in diet may increase urea recycling efficiency by increasing the concentration of urea in saliva and salivary flow into the rumen. Studies observed that cattle and sheep given feed containing condensed tannins had higher production of wool, meat, milk, and ovulation rates in females, desirable effects on animal production. According to the literature, dietary supplementation with tannins from chestnut and quebracho (2 g/kg of feed) to Holstein cattle changed the composition of the ruminal microbiota, particularly the bacteria that degrade fiber and starch, reducing the abundance of Prevotella an...

show abstract

Section: Discussionsupporting

confidence: 81%

Addition of Tannin in Lamb Diets after Weaning: Impact on Performance and Hematological and Biochemical Variables

Lucianer

Silva

Cazarotto

et al. 2019

Acta Scientiae. Vet.

View full text Add to dashboard Cite

show abstract

“…Further, tannin reduces enteric methane emission of ruminants through inhibition of methanogen and protozoa population [14]. Tannin inhibits biohydrogenation of polyunsaturated fatty acids in the rumen [15] and improves the deposition of these beneficial fatty acids in animal products [16,17].…”

Section: Introductionmentioning

confidence: 99%

Reduction of proteolysis of high protein silage from Moringa and Indigofera leaves by addition of tannin extract

2019

View full text Add to dashboard Cite

Aim: The objective of this experiment was to evaluate the effect of the addition of tannin extract to Moringa and Indigofera leaf silages on their chemical composition, silage quality characteristics, and in vitro rumen fermentation parameters and digestibility. Materials and Methods: Moringa and Indigofera leaves were cut (3 cm length) and added with either 0, 2, or 4% chestnut tannin in three replicates. The leaves were then inserted into lab-scale silos (1 L capacity) and kept for 30 days. Silage samples were subjected to silage quality determination, chemical composition analysis, and in vitro rumen fermentation and digestibility evaluation using a gas production technique. Data obtained were subjected to the analysis of variance with a factorial statistical model in which the first factor was different silage species and the second factor was tannin addition levels. Results: Tannin addition at 4% dry matter (DM) increased neutral detergent insoluble crude protein (NDICP) and acid detergent insoluble CP (ADICP) of Indigofera silage. A similar response was observed in Moringa silage, but it required less tannin, i.e., 2% DM to increase its NDICP and ADICP. Moringa silage had lower pH than that of Indigofera silage (p<0.05), and tannin addition did not change pH of both Indigofera and Moringa silages. Higher addition level of tannin decreased total volatile fatty acid (VFA) and ammonia concentrations of both Indigofera and Moringa silages (p<0.05). A higher level of tannin addition reduced ruminal total VFA concentration, ammonia, in vitro DM digestibility, and in vitro organic matter digestibility of Indigofera and Moringa silages (p<0.05). Tannin addition also decreased ruminal methane emission of both Indigofera and Moringa silages (p<0.05). Conclusion: Tannin extract can reduce proteolysis of high protein silage from Moringa and Indigofera leaves.

show abstract

“…The ratio of metabolizable protein to NI was found to be constant, ranging from 1.05 to 1.0 in control and 20 g SF + 40 g QT kg −1 , respectively. However, the diet comprising 20 g SF + 40 g QT kg −1 was found to have the highest average daily gain ( P = 0.11) among the diets tested. This finding shows that the quality of metabolizable protein might have a greater effect on the average daily gain compared to the quantity of metabolizable protein, which requires further investigation.…”

Section: Resultsmentioning

confidence: 91%

“…Moreover, the reduction of microbial biohydrogenation using condensed tannins (CT) would increase muscle Δ‐desaturase protein expression in sheep . Recently, Kamel et al reported that the inclusion of quebracho tannins (QT) and sunflower oil (SF) in lamb diets improved the meat contents with respect to healthy fatty acids without a negative effect on animal performance.…”

Section: Introductionmentioning

confidence: 99%

Dietary supplementation of sunflower oil and quebracho tannins in sheep feeding: in vivo nutrient digestibility, nitrogen utilization and in vitro ruminal degradation kinetics

2019

View full text Add to dashboard Cite

BACKGROUND: The effect of the inclusion of sunflower oil (SF) and quebracho tannin (QT) in a sheep diet was evaluated. Nutrient digestibility and nitrogen (N) utilization, as well as in vitro ruminal degradation kinetics, were evaluated at three levels [0, 20 and 40 g kg −1 of diet dry matter] of SF and QT in a 3 2 arrangement. The treatments were 0 (control); 20 and 40 g of QT and/or SF kg −1 of the diet. Four intact male sheep (45 ± 1.3 kg) for each treatment were used in the digestibility trial and kept individually in metabolic cages. RESULTS: Nutrient digestibility and N balance were not affected by SF. However, QT at 40 g kg −1 of dry matter decreased (P < 0.05) nutrient digestibility and also increased the proportion of absorbed N. Both SF and QT reduced (P < 0.05) the slowly degraded fraction and rate for organic matter and N. Even though the QT had a negative (P < 0.05) effect on nutrient digestibility, this effect was mild (P > 0.05) when SF was included in the QT-added diets. Moreover, an interaction (P < 0.05) of SF × QT was observed on the synchronization index as an indicator of the efficiency of rumen microbial protein synthesis. CONCLUSION: Supplementation of either SF or QT to sheep diets reduced ruminal organic matter and N degradability, reflecting the compensatory digestion in the post-ruminal track for organic matter feed utilization. Ruminal degradation of OM and N, and SIThe b, c, a + b and u of OM for the tested diets varied (P < 0.05) as a result of the levels of either SF or QT (Table 3). Increasing the level of SF added to the diet reduced (P < 0.05) the b fraction, degradation rate (c) and a + b fraction of OM. Subsequently, the u J Sci Food Agric 2019; 99: 4211-4217

show abstract

Influence of dietary supplementation with sunflower oil and quebracho tannins on growth performance and meat fatty acid profile of Awassi lambs

Cited by 27 publications

References 30 publications

Addition of Tannin in Lamb Diets after Weaning: Impact on Performance and Hematological and Biochemical Variables

Addition of Tannin in Lamb Diets after Weaning: Impact on Performance and Hematological and Biochemical Variables

Reduction of proteolysis of high protein silage from Moringa and Indigofera leaves by addition of tannin extract

Dietary supplementation of sunflower oil and quebracho tannins in sheep feeding: in vivo nutrient digestibility, nitrogen utilization and in vitro ruminal degradation kinetics

Contact Info

Product

Resources

About