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Terra-Braga M, Poli CHEC, Tontini JF, Ahsin M, Van Vliet S, Villalba JJ. Trade-offs between selection of crude protein and tannins in growing lambs. J Anim Sci 2024; 102:skae298. [PMID: 39367535 PMCID: PMC11497621 DOI: 10.1093/jas/skae298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 10/03/2024] [Indexed: 10/06/2024] Open
Abstract
Tannins are phenolic compounds that provide benefits to ruminants due to their protein-binding affinities and antioxidant properties. However, tannins may also have negative orosensorial and postingestive effects that decrease feed intake. This study explored how lambs trade off the ingestion of crude protein (CP) with the ingestion of potentially beneficial and toxic condensed and hydrolyzable tannins, and the ensuing impacts on diet digestibility, animal performance, and blood parameters. Thirty-two lambs were housed in individual pens for 8 wk and had access to 2 isoenergetic diets that varied in the concentration of CP (High-high in protein [HP] or Low-least preferred [LP]) and the presence of a mix of condensed and hydrolyzable tannins (4% DM). Animals were assigned to 4 treatment groups (N = 8 lambs/group) and received a simultaneous offer of: HP and LP (Control); HP and LP + tannins (HP - LP+); HP+ tannins and LP (HP + LP-); and both HP and LP with tannins (HP + LP+). All lambs preferred HP over LP and they avoided tannins in the diets (P < 0.001). Dry matter and CP intake were the lowest in HP + LP- (P < 0.0001), and DMD did not differ between Control and the other groups (P > 0.05), but it was greater for HP - LP + (P < 0.0001). CP digestibility was greater for groups without tannins in HP (P < 0.0001), but average daily gain (ADG) did not differ among treatments (P > 0.05). No differences between Control and HP + LP + were found in plasma antioxidant activity, total phenolic concentration, or haptoglobin concentration (P > 0.05). Intake of tannins was HP + LP+ > HP + LP- > HP - LP + (P < 0.0001), and fecal excretion of nitrogen (N) was HP + LP+ > HP - LP+ = HP + LP- > Control (P < 0.05). In addition, intake of tannins with both diets reduced blood urea nitrogen (BUN) concentration relative to Control (P < 0.05), thus suggesting a shift in the partitioning of N excretion from urine to feces. In summary, lambs prioritized the selection of HP over LP, regardless of the presence of a tannin extract in either or both diets. Nevertheless, lambs modulated their tannin consumption as a function of the specific diet where the tannin extract was added, with increasing levels of intake as tannins were present in just LP, then in just HP, and finally in both diets. Dietary tannins did not constrain ADG and resulted in a shift in the partitioning of N excretion from urine to feces. Such shifts have been found to result in reduced production of environmental pollutants such as ammonia, nitrous oxide, and nitrates.
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Affiliation(s)
- Marina Terra-Braga
- Programa de Pós-graduação em Zootecnia, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91540-000, Brazil
| | - Cesar H E C Poli
- Programa de Pós-graduação em Zootecnia, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91540-000, Brazil
| | - Jalise F Tontini
- Programa de Pós-graduação em Zootecnia, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91540-000, Brazil
| | - Muhammad Ahsin
- Department of Nutrition, Dietetics and Food Sciences, Utah State University, Logan, UT, 84322, USA
| | - Stephan Van Vliet
- Department of Nutrition, Dietetics and Food Sciences, Utah State University, Logan, UT, 84322, USA
| | - Juan J Villalba
- Department of Wildland Resources, Utah State University, Logan, UT, 84322, USA
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Ortíz-Domínguez GA, Marin-Tun CG, Torres-Fajardo RA, González-Pech PG, Capetillo-Leal CM, Torres-Acosta JFDJ, Ventura-Cordero J, Sandoval-Castro CA. Selection of Forage Resources by Juvenile Goats in a Cafeteria Trial: Effect of Browsing Experience, Nutrient and Secondary Compound Content. Animals (Basel) 2022; 12:ani12101317. [PMID: 35625163 PMCID: PMC9137546 DOI: 10.3390/ani12101317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Grazing/browsing goats ingest a diverse diet selected from the forage resources available in the range/paddock intending to meet their nutritional requirements. Intake and selection of any given forage can be modified by several factors, such as its nutrient content, including secondary compounds, as well as its biomass availability in the environment. The animal’s previous browsing experience can also be an important factor driving intake and selection. Therefore, the present study evaluated all these factors as well as their interaction. The results showed that the goats’ browsing experience guided the selection and intake towards those forage resources of better nutritional quality when there was no restriction in forage supply, as is the case for cafeteria trials. Goats with browsing experience showed their ability to limit secondary compounds and optimize their selection and intake for plants with better digestibility. This cafeteria protocol made it possible to identify the selection and consumption pattern of plant species with limited availability in the natural vegetation. This methodology could help identifying the forage resources that may be useful for small ruminant feeding, versus those resources that are not consumed by goats despite having a suitable chemical composition and in vitro digestibility or a high abundance. Abstract We evaluated the effect of browsing experience, nutritional quality and secondary compounds of forage resources, and the interaction between these factors on the selection and intake of goats in a cafeteria trial. Twelve juvenile Criollo goats from 7 to 9 months of age, weighing 22 ± 3 kg, were divided into two groups: (a) browser goats group (n = 6, BG), and (b) naïve goats group (n = 6, NG), formed according to their previous browsing experience (with and without, respectively). Animals were housed in individual pens. The cafeteria experiment lasted 21 days considering pen adaptation, foliage adaptation, and measurements, which included the selection index (SI) of experimental forage resources (Chesson’s alpha) and their dry matter intake (DMI/Kg0.75), using a multiple Latin square design. Furthermore, correlation and regression analyses were used to assess the relationship between the aforementioned factors. The NG did not show any selection pattern, while the BG selected Piscidia piscipula and Senegalia gaumeri (p = 0.0002). The BG consumed smaller amounts of secondary compounds compared to NG (p = 0.0001). In the BG, the flavonoids affected negatively their selection (R2 = 97.51, p = 0.0001), while the DMI was affected by in vitro DM digestibility and flavonoids (R2 = 99.85; p = 0.0001). For the NG, the crude protein and organic matter contents were associated with DMI, but none had a significant relationship with SI. The BG selected and consumed forages with suitable nutritional quality avoiding those with high content of secondary compounds such as flavonoids. Conversely, NG did not show a clear pattern for their selection or intake.
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Affiliation(s)
- Gabriel Andrés Ortíz-Domínguez
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Merida-Xmatkuil km 15.5, Merida 97315, Mexico; (G.A.O.-D.); (C.G.M.-T.); (R.A.T.-F.); (P.G.G.-P.); (C.M.C.-L.); (J.F.d.J.T.-A.)
| | - Cindy Goretti Marin-Tun
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Merida-Xmatkuil km 15.5, Merida 97315, Mexico; (G.A.O.-D.); (C.G.M.-T.); (R.A.T.-F.); (P.G.G.-P.); (C.M.C.-L.); (J.F.d.J.T.-A.)
| | - Rafael Arturo Torres-Fajardo
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Merida-Xmatkuil km 15.5, Merida 97315, Mexico; (G.A.O.-D.); (C.G.M.-T.); (R.A.T.-F.); (P.G.G.-P.); (C.M.C.-L.); (J.F.d.J.T.-A.)
| | - Pedro Geraldo González-Pech
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Merida-Xmatkuil km 15.5, Merida 97315, Mexico; (G.A.O.-D.); (C.G.M.-T.); (R.A.T.-F.); (P.G.G.-P.); (C.M.C.-L.); (J.F.d.J.T.-A.)
| | - Concepción Manuela Capetillo-Leal
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Merida-Xmatkuil km 15.5, Merida 97315, Mexico; (G.A.O.-D.); (C.G.M.-T.); (R.A.T.-F.); (P.G.G.-P.); (C.M.C.-L.); (J.F.d.J.T.-A.)
| | - Juan Felipe de Jesús Torres-Acosta
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Merida-Xmatkuil km 15.5, Merida 97315, Mexico; (G.A.O.-D.); (C.G.M.-T.); (R.A.T.-F.); (P.G.G.-P.); (C.M.C.-L.); (J.F.d.J.T.-A.)
| | - Javier Ventura-Cordero
- School of Biological Sciences, Queen’s University Belfast, Chlorine Gardens, Belfast BT9 5BL, UK;
| | - Carlos Alfredo Sandoval-Castro
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Merida-Xmatkuil km 15.5, Merida 97315, Mexico; (G.A.O.-D.); (C.G.M.-T.); (R.A.T.-F.); (P.G.G.-P.); (C.M.C.-L.); (J.F.d.J.T.-A.)
- Correspondence: ; Tel.: +52-999-942-3200
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Méndez-Ortiz F, Sandoval-Castro C, Ventura-Cordero J, Sarmiento-Franco L, Torres-Acosta J. Condensed tannin intake and sheep performance: A meta-analysis on voluntary intake and live weight change. Anim Feed Sci Technol 2018. [DOI: 10.1016/j.anifeedsci.2018.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Barbato M, Hailer F, Orozco-terWengel P, Kijas J, Mereu P, Cabras P, Mazza R, Pirastru M, Bruford MW. Genomic signatures of adaptive introgression from European mouflon into domestic sheep. Sci Rep 2017; 7:7623. [PMID: 28790322 PMCID: PMC5548776 DOI: 10.1038/s41598-017-07382-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 06/22/2017] [Indexed: 11/09/2022] Open
Abstract
Mouflon (Ovis aries musimon) became extinct from mainland Europe after the Neolithic, but remnant populations from the Mediterranean islands of Corsica and Sardinia have been used for reintroductions across Europe since the 19th-century. Mouflon x sheep hybrids are larger-bodied than mouflon, potentially showing increased male reproductive success, but little is known about genomic levels of admixture, or about the adaptive significance of introgression between resident mouflon and local sheep breeds. Here we analysed Ovine medium-density SNP array genotypes of 92 mouflon from six geographic regions, along with data from 330 individuals of 16 domestic sheep breeds. We found lower levels of genetic diversity in mouflon than in domestic sheep, consistent with past bottlenecks in mouflon. Introgression signals were bidirectional and affected most mouflon and sheep populations, being strongest in one Sardinian mouflon population. Developing and using a novel approach to identify chromosomal regions with consistent introgression signals, we infer adaptive introgression from mouflon to domestic sheep related to immunity mechanisms, but not in the opposite direction. Further, we infer that Soay and Sarda sheep carry introgressed mouflon alleles involved in bitter taste perception and/or innate immunity. Our results illustrate the potential for adaptive introgression even among recently diverged populations.
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Affiliation(s)
- Mario Barbato
- Istituto di Zootecnica, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, Piacenza, Italy. .,School of Biosciences, Cardiff University, CF10 3AX, Cardiff, Wales, UK.
| | - Frank Hailer
- School of Biosciences, Cardiff University, CF10 3AX, Cardiff, Wales, UK
| | | | - James Kijas
- CSIRO Agriculture, St Lucia, Brisbane, 4067, QLD, Australia
| | - Paolo Mereu
- Department of Biomedical Sciences, and Centre for Biotechnology Development and Biodiversity Research, University of Sassari, V.le San Pietro 43, Sassari, Italy
| | - Pierangela Cabras
- Istituto Zooprofilattico Sperimentale della Sardegna, Tortolí, Ogliastra, Italy
| | - Raffaele Mazza
- Laboratorio Genetica e Servizi - Associazione Italiana Allevatori, Cremona, Italy
| | - Monica Pirastru
- Department of Biomedical Sciences, and Centre for Biotechnology Development and Biodiversity Research, University of Sassari, V.le San Pietro 43, Sassari, Italy
| | - Michael W Bruford
- School of Biosciences, Cardiff University, CF10 3AX, Cardiff, Wales, UK
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Pech-Cervantes A, Ventura-Cordero J, Capetillo-Leal C, Torres-Acosta J, Sandoval-Castro C. Relationship between intake of tannin-containing tropical tree forage, PEG supplementation, and salivary haze development in hair sheep and goats. BIOCHEM SYST ECOL 2016. [DOI: 10.1016/j.bse.2016.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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