Effects of dietary pomegranate pulp silage supplementation on milk yield and composition, milk fatty acid profile and blood plasma antioxidant status of lactating dairy cows

Kotsampasi, Β.; Christodoulou, Christos; Tsiplakou, Eleni; Mavrommatis, Alexandros; Mitsiopoulou, Christina; Karaiskou, C.; Dotas, Vassilios; Robinson, P.H.; Bampidis, Vasileios; Christodoulou, V.; Zervas, G.

doi:10.1016/j.anifeedsci.2017.08.017

Cited by 28 publications

(30 citation statements)

References 30 publications

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“…According to Cannas et al [12], it was estimated that that the ingestion of the individual ewe was about 2.3 kg, and therefore the pomegranate pulp represented about 7% of total dry matter intake (DMI). The chemical composition of PP used in the present paper was in the range reported for similar pomegranate by-products [10,11,26]. The crude fat of PP mostly arises from the seed oil, and therefore, it is not surprising that PA was the most abundant fatty acid in the fat of PP.…”

Section: Discussionmentioning

confidence: 81%

“…Controversial results are reported on the effect of dietary pomegranate by-products on milk yield and composition. Kotsampasi et al [10] did not observe a variation of DMI, milk yield, and gross composition when 75 or 150 g/kg of pomegranate silage were included in the diet of lactating cows. A similar result was observed by Modaresi et al [8] in lactating goats with the inclusion of 60 or 120 g/kg of pomegranate seed pulp.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, the whole pomegranate pulp, where all the above-described phytochemicals are present at once, has been scarcely investigated. Therefore, only the effects of feeding PP silage has been investigated in cow milk and lamb meat production [10,11]. In addition, to the best of our knowledge, pomegranate pulp has not been previously tested on dairy ewes.…”

Section: Introductionmentioning

confidence: 99%

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Dietary Pomegranate Pulp: Effect on Ewe Milk Quality during Late Lactation

Valenti

Luciano

Morbidini

et al. 2019

Animals

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Pomegranate pulp, a by-product of the pomegranate juice industry, contains a remarkable quantity of bioactive compounds that can favorably affect ruminant metabolism and milk quality. The present paper investigated the effect of dietary pomegranate pulp on milk yield and quality during late lactation in grazing ewes. Twenty Comisana ewes (150 ± 10 days in milk) were subdivided into control (CTRL) and pomegranate (PP) groups. The CTRL group received a corn-barley based concentrate, while the PP group received a concentrate containing 64.8% pomegranate pulp. Dietary treatment did not affect milk yield. CTRL milk had a greater percentage of β-casein and total casein, while αs1-casein percentage tended to be greater in the PP group. The PP milk showed a lower percentage of 14:0, 16:0, but a greater percentage of vaccenic, rumenic, and α-linolenic acid. Punicic acid was detected only in the PP milk. Total antioxidant capacity (ORAC) was greater in the CTRL milk as compared with the hydrophilic ORAC. Dietary pomegranate pulp increased milk health quality with no detrimental effects on milk yield. Therefore, pomegranate pulp could represent a strategy for improving milk quality and reducing feeding cost during a less profitable phases such as late lactation. Also, dietary pomegranate pulp, as an alternative to traditional feedstuffs, may lower feed-to-food competition in livestock production.

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Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dietary Pomegranate Pulp: Effect on Ewe Milk Quality during Late Lactation

Valenti

Luciano

Morbidini

et al. 2019

Animals

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“…Several studies have proposed the dietary inclusion of pomegranate by-products as an effective strategy to improve the quality of ruminant products, with particular attention to their healthpromoting fatty acid (FA) composition (Ishlak et al, 2014;Razzaghi et al, 2015;Salami et al, 2019). Thus, a greater content of such FA (i.e., total PUFA and rumenic and vaccenic acids) were observed in milk and meat from ruminants fed the whole pomegranate by-product (Kotsampasi et al, 2017;Valenti et al, 2019a) or a by-product containing mostly seeds (Modaresi et al, 2011;Emami et al, 2015;Razzaghi et al, 2015). In a previous work, we found that feeding lambs with 200 g/kg DM of dried WPB resulted in an overall improvement of the intramuscular fatty acid profile (Natalello et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Bioactive compounds from pomegranate by-products increase the in vitro ruminal accumulation of potentially health promoting fatty acids

Natalello

Hervás

Toral

et al. 2020

Animal Feed Science and Technology

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Increasing demand and production of pomegranate has led to a large amount of byproducts that might be used in ruminant feeding. Inclusion of pomegranate by-products in the ovine diet has recently been shown to enrich meat and milk with potentially health-promoting fatty acids (FA). However, it remains unclear whether this effect is due to the action of the bioactive conjugated linolenic acids (CLnA) or of the tannins present in the pomegranate, or perhaps to their interaction. To fill this gap, two in vitro experiments were conducted: the first one tested the effects of pomegranate oil and tannins, alone or in combination, on the biohydrogenation process, and the second one compared the ruminal responses to by-products rich in CLnA (pomegranate seeds, PS), in tannins (pomegranate peels and pulp, PPP) or in both bioactive components (i.e., the whole pomegranate by-product; WPB). Three cannulated ewes were used as donors of inocula for batch cultures of rumen microorganisms. Incubations lasted for 12 and 24 h and were repeated on 3 different days (runs). In both experiments, digesta FA profile was examined by gas chromatography. Results from both trials support that pomegranate tannins and CLnA played different roles in modulating ruminal FA composition.Specifically, tannins would favour the accumulation of potentially health-promoting FA present in dietary lipids (e.g., 18:2n-6 or 18:3n-3) and cis-9 trans-11 conjugated linoleic acid (CLA), whereas the observed increase in trans-11 18:1 would mainly derive from the biohydrogenation of CLnA isomers. Results from the second experiment included evident shifts in some minor FA that would support not only direct saturation steps (e.g., increases in trans-11 cis-13 and trans-11 trans-13 CLA, and in trans-9, trans-11, cis-13 and trans-13 18:1) but also a putative isomerisation by rumen bacteria (e.g., increases in trans-10 cis-12 . Changes in ruminal fermentation parameters (i.e., reductions in ammonia concentration and in the proportions of minor volatile FA) showed that pomegranate tannins protected dietary protein from degradation. Nevertheless, a negative 4 impact on in vitro ruminal fermentation (i.e., reductions in DM disappearance, gas production and total volatile FA concentrations) was observed when 20% of by-products were included in the diet. Finally, there seem to be no evident synergistic but additive effects between pomegranate bioactive compounds (i.e., tannins and CLnA) on ruminal biohydrogenation or fermentation.

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“…No país, a pecuária de corte tem como base majoritária da alimentação, pastagens naturais (MARTHA JUNIOR et al, 2012). Na atividade leiteira, algumas propriedades implementam forrageiras em seus sistemas de produção, entretanto em épocas de escassez de alimento, o produtor faz uso de grãos e alimentos conservados, gerando um custo maior para manter a dieta adequada dos animais (KOTSAMPASI et al, 2017). A utilização de coprodutos gerados pela indústria da viticultura é uma alternativa de reduzir as despesas com a alimentação, podendo resultar em aumento na produção com baixos custos em comparação aos ingredientes tradicionais, em especial para o produtor com fácil acesso a esses resíduos (AZEVÊDO et al, 2012).…”

Section: Introductionunclassified