Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3168/jds.2017-14118 |
Productivity of lactating dairy cows fed diets with teff hay as the sole forage | |
Saylor, B. A.1; Min, D. H.2; Bradford, B. J.1 | |
通讯作者 | Bradford, B. J. |
来源期刊 | JOURNAL OF DAIRY SCIENCE
![]() |
ISSN | 0022-0302 |
EISSN | 1525-3198 |
出版年 | 2018 |
卷号 | 101期号:7页码:5984-5990 |
英文摘要 | Groundwater depletion is one of the most pressing issues facing the dairy industry in arid regions. One strategy to improve the industry’s drought resilience involves feeding drought-tolerant forage crops in place of traditional forage crops such as alfalfa and corn silage. The objective of this study was to assess the productivity of lactating dairy cows fed diets with teff hay (Eragrostis tef) as the sole forage. Teff is a warm-season annual grass native to Ethiopia that is well adapted to drought conditions. Nine multiparous Holstein cows (185 +/- 31 d in milk; mean +/- standard deviation) were randomly assigned to 1 of 3 diets in a 3 x 3 Latin square design with 18-d periods (14 d acclimation and 4 d sampling). Diets were either control, where dietary forage consisted of a combination of corn silage, alfalfa hay, and native grass hay, or 1 of 2 teff diets (teff-A and teff-B), where teff hay [13.97 +/- 0.32% crude protein, dry matter (DM) basis] was the sole forage. All 3 diets were formulated for similar DM, crude protein, and nonfiber carbohydrate concentrations. Control and teff-A were matched for concentrations of neutral detergent fiber (NDF) from forage (18.2 +/- 0.15% of DM), and teff-B included slightly less, providing 16.6% NDF from forage. Dry matter intake, milk and component production, body weight, body condition score, as well as DM and NDF digestibility were monitored and assessed using mixed model analysis, with significance declared at P < 0.05. Treatment had no effect on dry matter intake (28.1 +/- 0.75 kg/d). Similarly, treatment had no effect on milk production (40.7 +/- 1.8 kg/d). Concentrations of milk fat (3.90 +/- 0.16%) and lactose (4.68 +/- 0.07%) were also unaffected by treatment. Teff-A and teff-B increased milk protein concentration compared with the control (3.07 vs. 3.16 +/- 0.09%). Treatment had no effect on energy-corrected milk yield (43.4 +/- 1.3 kg/d), body weight, or body condition score change. Additionally, treatment had no effect on total-tract DM or NDF digestibility. Results from this study indicate that teff hay has potential to replace alfalfa and corn silage in the diets of lactating dairy cattle without loss of productivity. |
英文关键词 | drought forage lactation grass |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000436481500027 |
WOS关键词 | NEUTRAL DETERGENT FIBER ; CORN GLUTEN FEED ; ANIMAL NUTRITION ; MILK-PRODUCTION ; SILAGE ; DIGESTIBILITY ; FERMENTATION ; NITROGEN ; HEALTH ; CATTLE |
WOS类目 | Agriculture, Dairy & Animal Science ; Food Science & Technology |
WOS研究方向 | Agriculture ; Food Science & Technology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/210808 |
作者单位 | 1.Kansas State Univ, Dept Anim Sci & Ind, Manhattan, KS 66506 USA; 2.Kansas State Univ, Dept Agron, Manhattan, KS 66506 USA |
推荐引用方式 GB/T 7714 | Saylor, B. A.,Min, D. H.,Bradford, B. J.. Productivity of lactating dairy cows fed diets with teff hay as the sole forage[J],2018,101(7):5984-5990. |
APA | Saylor, B. A.,Min, D. H.,&Bradford, B. J..(2018).Productivity of lactating dairy cows fed diets with teff hay as the sole forage.JOURNAL OF DAIRY SCIENCE,101(7),5984-5990. |
MLA | Saylor, B. A.,et al."Productivity of lactating dairy cows fed diets with teff hay as the sole forage".JOURNAL OF DAIRY SCIENCE 101.7(2018):5984-5990. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。