Volume 13, Issue 47 (4-2009)                   jwss 2009, 13(47): 143-153 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Mahjoubi E, Amanlo H, Zahmatkesh D. Effects of Beet Bulp Substituted for Barley Grain in Ration of Overconditioned Cows at the Late Lactation on Productivity,BCS and Blood Metabolites. jwss 2009; 13 (47) :143-153
URL: http://jstnar.iut.ac.ir/article-1-1043-en.html
, e_mahjoubi133@yahoo.com
Abstract:   (21151 Views)
In order to examine the effects of increasing concentrations of beet pulp (lipogenic nutrient) substituted for barley grain (glycogenic nutrient) on productive performance, body condition score loss, and blood metabolites, 18 Holstein cows were used in a randomized complete block design. The cows were blocked based on parity. The cows were 171 ± 16 d in pregnancy, 2.76 ± 1.14 parity, and 289 ± 35 d in milk at the beginning of the experiment. The cows' body condition scores were 4.12 ± 0.35 at the beginning of the trial. The cows were assigned randomly to three dietary treatments containing 1) 23.47% barley (0% beet pulp), 2) 14.87% barley (8.6% beet pulp), or 3) 6.27% barley (17.2% beet pulp). Substituting beet pulp for barley grain didn't affect FCM 3.5%, milk protein, lactose, total solid, and SNF percentage, but milk fat percentage (4.37, 4.91, and 5.18, P < 0.003) and milk energy (0.76, 0.82, and 0.84 Mcal/kg, P < 0.02) increased as beet pulp was replaced with barley, respectively. A tendency was detected for a more negative body condition score change (0.13, -0.09, and -0.12, P < 0.13) and back fat thickness (2.5, -0.4, and -1.6 mm, P < 0.13) with added beet pulp. Plasma glucose (65.83, 58, and 57.16 mg/dl, P < 0.01) and cholesterol (157.33, 122.4, and 120.8 mg/dl, P < 0.03) decreased as beet pulp was substituted for barley grain, respectively. No difference was found in the plasma content of insulin and NEFA between treatments. Considering these results, it appears that with inclusion of beet pulp in fat cows diet during late lactation may slightly reduce body condition score safely and inhibit concomitant low production with diet diluting.
Full-Text [PDF 267 kb]   (11586 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2010/05/1 | Published: 2009/04/15

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | JWSS - Isfahan University of Technology

Designed & Developed by : Yektaweb