| Title: |
353 Evaluation of Native and Invasive Seed Germination Ability After in Situ Incubation in the Rumen for Rangeland Restoration Through Targeted Seed Supplementation |
| Authors: |
Franco, Arturo Macias; Silva, Aghata; Richardson, William; Stringham, Tamzen; Brody, Tio; Mazza, Pedro; Fonseca, Mozart A |
| Source: |
Journal of Animal Science ; volume 101, issue Supplement_3, page 265-266 ; ISSN 0021-8812 1525-3163 |
| Publisher Information: |
Oxford University Press (OUP) |
| Publication Year: |
2023 |
| Description: |
Changes to native plant compositions of drylands are often associated to loss of wildlife, increased frequency, and severity of wildfires; further, it complicates the grazing permits and allocation during periods of restoration. The goals herein investigate the germination rates of native seed species after in situ incubation to evaluate their potential dispersal as supplements for grazing cattle. Native: Indian ricegrass (Achnatherum hymenoides; ACHY), white yarrow (Achillea millefolium; ACMI), crested wheatgrass (Agropyron cristatum; AGCR), sagebrush (Artemisia tridentata; ARTR), fourwing saltbrush (Atriplex canascens; ATCA), bottlebrush squirreltail (Elymus elimoides; ELEL), bluebunch wheatgrass (Pseudoregneria spicata; PSSP), and gooseberryleaf globemallow (Sphaeralcea grossulariifolia; SPRT) and nonnative: cheatgrass (Bromus tecorum, BRTE; fall BRTEf and spring seeds BRTEs) seeds were examined. Four ruminally canulated Angus x Hereford steers adapted to a forage kochia-alfalfa diet were utilized for seed incubations. Seeds were weighed into 84 bags at a rate of 5 g per bag (duplicated within and in different animals). Seeds were incubated sequentially (0, 6, 12, 24, 36, 48, and 96 h) and removed at the 96-h point when seeds were thoroughly washed and immediately counted (50) on square 80 mm 80 mm commercial sterile petri dishes with moisture pads and 5 mL of water. Seeds were incubated at 20 °C with 12 h of light/no-light intervals. Germination plates were incubated for 50 d and counted every 10 d for germinations. Generalized linear models assuming a Poisson distribution with separation of means through Dunnett’s multiple comparisons test. Statistical significance was declared at P < 0.05. All statistical analyses were performed on R (R Core Team 2022). Incubation times inside of the rumen linearly decreased germination rates across most seed species. For BRTEs, germination completely stopped at 48 h with a steep decrease observed after 24 h incubation. The BRTEf were also incubated but ... |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1093/jas/skad281.318 |
| Availability: |
https://doi.org/10.1093/jas/skad281.318; https://academic.oup.com/jas/article-pdf/101/Supplement_3/265/52957549/skad281.318.pdf |
| Rights: |
https://academic.oup.com/pages/standard-publication-reuse-rights |
| Accession Number: |
edsbas.3F92B080 |
| Database: |
BASE |