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The Use of Agro-Industrial By-Products in the Diets of Ruminants
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The Use of Agro-Industrial By-Products in the Diets of Ruminants

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Animal Physiology".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 3877

Special Issue Editor

Dr. Belal S. Obeidat

E-Mail Website
Guest Editor
Department of Animal Production, Jordan University of Science and Technology, Irbid, Jordan
Interests: factors affecting intake and utilization of nutrients of livestock animals; nutritional and management factors that improve sheep and goats’ production efficiency; using alternative feeds and agro-industrial by-products in livestock diets

Special Issue Information

Dear Colleagues,

During the past decades, livestock producers suffer from many problems, the most important of which is the lack of conventional feedstuffs and their high prices knowing that almost 70% of the cost of red meat and milk production is associated with diet ingredients. Therefore, to partially solve this problem, farmers began to rely on finding alternatives to traditional feed such as alternative feeds and/or agro-industrial by-products to reduce production costs and ultimately improve profitability. The usage of alternative feeds is primarily dependent on their being more affordable while providing greater or comparable nutritional value and composition to the conventional feed they are replacing.

In this Special Issue, we intend to focus on the use of agro-industrial by-products in feeding ruminants to mitigate the production cost and reduce the risk of environmental pollution. We call on researchers to contribute their recent findings, especially focusing on, but not limited to, the following alternative feeds and agro-industrial by-products:

  • Dried citrus pulp
  • Bakery by-products
  • Dried distiller’s grains
  • Tomato and cumber by-products
  • Lupins’, carob pods, and faba beans grains not suitable for human consumption
  • Black cumin meals
  • Sesame meals and hulls
  • Olive cake and leaves
  • Others

We are pleased to invite you to submit research into the use of agro-industrial by-products in feeding ruminants to alleviate the impact of high prices for conventional diet ingredients. In this Special Issue, original research articles and reviews are welcome.

We look forward to receiving your contributions.

Dr. Belal S. Obeidat
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • dried citrus pulp
  • bakery by-products
  • dried distiller’s grains
  • tomato and cumber by-products
  • lupins’, carob pods, and faba beans grains not suitable for human consumption
  • black cumin meals
  • sesame meals and hulls
  • olive cake and leaves

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Published Papers (2 papers)

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Research

12 pages, 248 KiB  
Article
Growth Performance, Blood Metabolites and Carcass Characteristics of Black Goat Kids Fed Diets Containing Olive Cake
by Belal S. Obeidat and Milton G. Thomas
Animals 2024, 14(2), 272; https://doi.org/10.3390/ani14020272 - 15 Jan 2024
Cited by 9 | Viewed by 1493
Abstract
This study investigated the dietary effect of incorporating different levels of olive cake (OC) on the metabolic responses, growth performance, and carcass characteristics of black goat male kids. Thirty kids (body weight = 17.3 ± 0.40 kg) were randomly distributed into one of [...] Read more.
This study investigated the dietary effect of incorporating different levels of olive cake (OC) on the metabolic responses, growth performance, and carcass characteristics of black goat male kids. Thirty kids (body weight = 17.3 ± 0.40 kg) were randomly distributed into one of three equally sized dietary groups: a control diet (CON), OC at 75 g/kg (OC75), and OC at 150 g/kg (OC150) of dietary dry matter (DM). The results revealed that the intake of DM, crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF) was similar (p ≥ 0.11) among the three treatment groups. However, the OC150 group had the greatest (p < 0.0001) ether extract (EE) intake compared to the OC75 and CON groups. The growth measurements were similar (p ≥ 0.13) among the three groups. Feed efficiency was not affected by the inclusion of OC. In contrast to the CON diet, the cost of gain was, however, reduced (p = 0.004) in the OC diets. All three treatment groups’ digestibility of DM, CP, and ADF was similar. However, when compared to the OC75 and CON groups, the digestibility of NDF was better (p < 0.05) in the OC150 group. The N intake did not differ among the three experimental groups. Nitrogen retained as g/d was higher (p = 0.04) in the OC150 and OC75 groups compared to the CON group, while retention as a percentage (g/100 g) was similar among the three groups. Except for intermuscular fat, total fat, leg fat depth, and tissue depth, the inclusion of OC did not result in any discernible treatment effects on the carcass and meat quality parameters. Only alanine aminotransferase enzyme activity was lower (p < 0.0001) in OC-treated groups compared to the CON group. In summary, incorporating OC at 75 g/kg and 150 g/kg levels into the diets of black goat kids had positive comparable effects on some parameters related to growth performance, carcass attributes, and meat quality. Importantly, utilizing olive cake led to cost savings in production and may serve as a viable alternative feed source in goat nutrition. Full article
(This article belongs to the Special Issue The Use of Agro-Industrial By-Products in the Diets of Ruminants)
17 pages, 380 KiB  
Article
Growth Performance, Rumen Fermentation, In Vivo Digestibility, and Meat Quality of Pelibuey Lambs Fed a Diet with Ensiled Coffee Pulp
by Graciela Munguía-Ameca, María Esther Ortega-Cerrilla, José Guadalupe Herrera-Haro, Ricardo Bárcena-Gama, Cuauhtémoc Nava-Cuéllar and Pedro Zetina-Córdoba
Animals 2023, 13(22), 3462; https://doi.org/10.3390/ani13223462 - 9 Nov 2023
Cited by 3 | Viewed by 1856
Abstract
Coffee pulp has been included in ruminant diets; but until now, little has been known about how the addition of ensiled coffee pulp (ECP) affects the growth performance of lambs. This study explores the diet’s antioxidant capacity, tannins, and caffeine concentration and its [...] Read more.
Coffee pulp has been included in ruminant diets; but until now, little has been known about how the addition of ensiled coffee pulp (ECP) affects the growth performance of lambs. This study explores the diet’s antioxidant capacity, tannins, and caffeine concentration and its effect on water intake, growth performance, rumen variables, in vivo digestibility, nitrogen balance, and carcass and meat characteristics of lambs fed ECP. Thirty-six male Pelibuey lambs were distributed randomly to one of three treatments (n = 12): without ECP0; diet with 10% ECP10, and diet with 20% ECP20. The diets’ antioxidant capacity, tannins, and caffeine concentration were similar (p > 0.05) for all treatments. The diets’ antioxidant compounds and the blood serum’s antioxidant capacity were affected (p < 0.05). Dry matter and water intake, body-weight gain, and feed conversion were not significant (p > 0.05). No differences (p > 0.05) were found in the rumen variables or the nitrogen balance. However, the in vivo digestibility of crude protein was affected (p < 0.05). Carcass and meat quality were not affected (p > 0.05) by the inclusion of ECP, except temperature and redness (a*) at seven days of storage, respectively. Including up to 20% of ECP in the diet of lambs did not affect the growth performance, rumen variables, or nitrogen balance; however, the antioxidant compounds of the diets, the antioxidant capacity in blood serum, and the in vivo digestibility of crude protein were different. There was an increase in the redness (a*) and lower temperature in the Longissimus dorsi muscle, keeping lightness (L*), yellowness (b*), water-holding capacity, and texture at seven storage days. Full article
(This article belongs to the Special Issue The Use of Agro-Industrial By-Products in the Diets of Ruminants)
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