Dietary inclusion of alternative feedstuffs had no negative effects on hematological and biochemical parameters of growing Awassi lambs

Awawdeh, Mofleh S.; Dager, Hamzeh K.; Obeidat, Belal S.

doi:10.1007/s11250-020-02236-3

Cited by 5 publications

(7 citation statements)

References 21 publications

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“…Instead, heifers showed similar concentrations regardless the OC inclusion. Urea is one of the few blood parameters that was often evaluated in studies regarding the integration of olive by-products in livestock diet, with most of them reporting a decrease in uremia, which supports our results (Yáñez-Ruiz and Molina-Alcaide, 2007;El-Tarabany et al, 2018;Awawdeh et al, 2020;Alkhtib et al, 2021). This effect was associated to a possible reduction in nitrogen intake or protein rumen degradability due to the bind between tannins and dietary proteins (Yáñez- Ruiz and Molina-Alcaide, 2007;Correddu et al, 2020).…”

Section: Ureasupporting

confidence: 88%

“…Concerning the effect of the diet, we also observed that the increase over time of TCHO was to a lesser extent in the H-OC group only. Accordingly, previous studies investigating olive by-products in sheep diets found no variation or a decrease in TG and TCHO concentrations (El-Tarabany et al, 2018;Awawdeh et al, 2020;Alkhtib et al, 2021). This may be due to the OC's high content in unsaturated fatty acids and phytosterols (Viveros et al, 2009;Cedó et al, 2019).…”

Section: Lipids (Tg Tcho)mentioning

confidence: 89%

“…Several ruminants (Yáñez- Ruiz and Molina-Alcaide, 2007;Awawdeh, 2011;Abbeddou et al, 2011a,b;Estaún et al, 2014;Castellani et al, 2017;Kotsampasi et al, 2017;Awawdeh et al, 2020;Neofytou et al, 2020;Alkhtib et al, 2021;Symeou et al, 2021;Tzamaloukas et al, 2021) and monogastric meat species (Rupić et al, 1999;Paiva-Martins et al, 2014;Parsaei et al, 2014;Ait-Kaki et al, 2018;Reda et al, 2020) have been investigated, but beef cattle appear to be under-represented. Moreover, most of the studies mainly focus on animal performance and/or the final product or the rumen function (Estaún et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…With regard to hepatic enzymes, we observed that ALT was higher in control animals, but the differences among the groups disappeared when we considered the last sampling period. Accordingly, animals of several species, both ruminant (El-Tarabany et al, 2018;Lipińska and Józwik, 2018;Awawdeh et al, 2020;Alkhtib et al, 2021) and monogastric (Paiva-Martins et al, 2014;Parsaei et al, 2014), showed similar or slightly lower ALT activity when fed with olive or chokeberry by-products. It can be hypothesized that this enzyme decreases due to the effect of antioxidants and polyphenols on the liver.…”

Section: Liver Enzymes (Ast Alt and Ldh)mentioning

confidence: 99%

“…Particularly, lower activity of all of them were measured with the 10% integration (L-OC), in bulls only. Most of the studies on olive by-products administration showed no differences in these parameters (Paiva-Martins et al, 2014;El-Tarabany et al, 2018;Awawdeh et al, 2020;Alkhtib et al, 2021), but the extent of the integration might be important; in fact, in broilers, a small quantity of olive cake has been associated to a decreased AST, whereas a great quantity to increased AST activity (Parsaei et al, 2014). Moreover, a reduction of AST and LDH activities was also recorded in lambs fed with chokeberry by-products (Lipińska and Józwik, 2018).…”

Section: Liver Enzymes (Ast Alt and Ldh)mentioning

confidence: 99%

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Diet supplemented with olive cake as a model of circular economy: Metabolic and endocrine responses of beef cattle

Bionda

Lopreiato²,

Crepaldi³

et al. 2022

Front. Sustain. Food Syst.

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IntroductionIntegrating by-products into livestock diet represents a great opportunity for implementing the concept of circular economy while reducing feed costs. Olive cake (OC) is considered an agro-industrial waste, but the high content of valuable metabolites makes it a promising feed integration. Therefore, this study investigated the effect of OC integration in beef cattle diet on different blood parameters.MethodsForty-eight young growing fattening Limousines-−24 bulls (body weight 350 ± 15 kg) and 24 heifers (280 ± 10 kg)—, aged 240 ± 20 days, were randomly allocated to 1 of 3 dietary treatments: concentrate at 0% (Control group: CTR), 10% (Low-olive cake group: L-OC), or 15% (High-olive cake group: H-OC) of OC inclusion. Blood samples and body weights were collected before administrating the supplemented diet (0 d), at the end of the stocker growing phase (56 d), and at the end of the fattening (147 d). After being slaughtered, animal carcasses were weighted. A linear regression model was fitted for each blood parameter with the 0 d as covariate and diet, time, sex, diet × time, and diet × sex as fixed effects.ResultsIn males, body weight was highest in CTR, but carcass weight was similar in all the groups. All the blood parameters were within physiological ranges, independently from the animal diet. CTR group showed the highest alanine aminotransferase (ALT, P = 0.0027) and creatine kinase (P = 0.0119), whereas total bilirubin (P = 0.0023) was higher in H-OC than in CTR. Moreover, ALT was highest in CTR at 56 d, becoming similar in all the groups at 147 d (P = 0.0280). Instead, the increase observed in total cholesterol from 56 to 147 d was lower in H-OC compared with CTR and L-OC (P = 0.0451). A significant effect of diet × sex interaction was observed on triglycerides, urea, liver enzymes, and insulin. These data support the OC inclusion of up to 15% of the concentrate with no detrimental effect on beef cattle metabolic status.DiscussionIn conclusion, OC can be considered as a component in beef diet giving an opportunity to improve agriculture sustainability.

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