Kudzu (Pueraria montana var. lobata) age variability effects on total and nutrient-specific in situ rumen degradation

Early and late season kudzu leaves were collected to analyse dry matter (DM), crude protein (CP), acid detergent fibre (ADF), and neutral detergent fibre (NDF) in situ rumen disappearance to assess kudzu quality. Four studies were conducted during different growing periods [2 repeated early season (...

Full description

Bibliographic Details
Main Authors: J. P. Gulizia, K. M. Downs, S. Cui
Format: Article
Language:English
Published: Taylor & Francis Group 2019-01-01
Series:Journal of Applied Animal Research
Subjects:
Online Access:http://dx.doi.org/10.1080/09712119.2019.1652615
_version_ 1818967245951336448
author J. P. Gulizia
K. M. Downs
S. Cui
author_facet J. P. Gulizia
K. M. Downs
S. Cui
author_sort J. P. Gulizia
collection DOAJ
description Early and late season kudzu leaves were collected to analyse dry matter (DM), crude protein (CP), acid detergent fibre (ADF), and neutral detergent fibre (NDF) in situ rumen disappearance to assess kudzu quality. Four studies were conducted during different growing periods [2 repeated early season (ES); 2 repeated late season (LS)] to determine age variability effects. Kudzu was incubated in the rumen between 0.25 and 72 h to determine total rumen degradation (%) and the rate of disappearance (% h−1). Data were analysed as a randomized complete block design (RCBD) with repeated measures. Regression analysis was used to determine the degradation rate. Overall season effects (across incubation times) for dry matter disappearance (DMD) were significantly different (P < .0001). There were also significant season by incubation time interactions for DMD. Rumen degradation rate was determined to be 2.41% h−1 across both seasons, with no significant seasonal difference (P = .3396). Results from this study are indicative that ES kudzu is more degradable than LS. Although there are significant seasonal effects on kudzu DMD during certain incubation times, DMD overall for ES and LS is still indicative of high rumen degradability.
first_indexed 2024-12-20T13:45:44Z
format Article
id doaj.art-dce049b603c9490ba28b537fe707b1cd
institution Directory Open Access Journal
issn 0971-2119
0974-1844
language English
last_indexed 2024-12-20T13:45:44Z
publishDate 2019-01-01
publisher Taylor & Francis Group
record_format Article
series Journal of Applied Animal Research
spelling doaj.art-dce049b603c9490ba28b537fe707b1cd2022-12-21T19:38:42ZengTaylor & Francis GroupJournal of Applied Animal Research0971-21190974-18442019-01-0147143343910.1080/09712119.2019.16526151652615Kudzu (Pueraria montana var. lobata) age variability effects on total and nutrient-specific in situ rumen degradationJ. P. Gulizia0K. M. Downs1S. Cui2School of Agriculture, Middle Tennessee State UniversitySchool of Agriculture, Middle Tennessee State UniversitySchool of Agriculture, Middle Tennessee State UniversityEarly and late season kudzu leaves were collected to analyse dry matter (DM), crude protein (CP), acid detergent fibre (ADF), and neutral detergent fibre (NDF) in situ rumen disappearance to assess kudzu quality. Four studies were conducted during different growing periods [2 repeated early season (ES); 2 repeated late season (LS)] to determine age variability effects. Kudzu was incubated in the rumen between 0.25 and 72 h to determine total rumen degradation (%) and the rate of disappearance (% h−1). Data were analysed as a randomized complete block design (RCBD) with repeated measures. Regression analysis was used to determine the degradation rate. Overall season effects (across incubation times) for dry matter disappearance (DMD) were significantly different (P < .0001). There were also significant season by incubation time interactions for DMD. Rumen degradation rate was determined to be 2.41% h−1 across both seasons, with no significant seasonal difference (P = .3396). Results from this study are indicative that ES kudzu is more degradable than LS. Although there are significant seasonal effects on kudzu DMD during certain incubation times, DMD overall for ES and LS is still indicative of high rumen degradability.http://dx.doi.org/10.1080/09712119.2019.1652615ruminantrumenin situdegradationkudzu
spellingShingle J. P. Gulizia
K. M. Downs
S. Cui
Kudzu (Pueraria montana var. lobata) age variability effects on total and nutrient-specific in situ rumen degradation
Journal of Applied Animal Research
ruminant
rumen
in situ
degradation
kudzu
title Kudzu (Pueraria montana var. lobata) age variability effects on total and nutrient-specific in situ rumen degradation
title_full Kudzu (Pueraria montana var. lobata) age variability effects on total and nutrient-specific in situ rumen degradation
title_fullStr Kudzu (Pueraria montana var. lobata) age variability effects on total and nutrient-specific in situ rumen degradation
title_full_unstemmed Kudzu (Pueraria montana var. lobata) age variability effects on total and nutrient-specific in situ rumen degradation
title_short Kudzu (Pueraria montana var. lobata) age variability effects on total and nutrient-specific in situ rumen degradation
title_sort kudzu pueraria montana var lobata age variability effects on total and nutrient specific in situ rumen degradation
topic ruminant
rumen
in situ
degradation
kudzu
url http://dx.doi.org/10.1080/09712119.2019.1652615
work_keys_str_mv AT jpgulizia kudzupuerariamontanavarlobataagevariabilityeffectsontotalandnutrientspecificinsiturumendegradation
AT kmdowns kudzupuerariamontanavarlobataagevariabilityeffectsontotalandnutrientspecificinsiturumendegradation
AT scui kudzupuerariamontanavarlobataagevariabilityeffectsontotalandnutrientspecificinsiturumendegradation