Technical note: Simultaneous carotenoid and vitamin analysis of milk from total mixed ration-fed cows optimized for xanthophyll detection
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چکیده
منابع مشابه
Performance of lactating dairy cows fed varying levels of total mixed ration and pasture.
Two, 8-week experiments, each using 30 lactating Holstein cows, were conducted to examine performance of animals offered combinations of total mixed ration (TMR) and high-quality pasture. Experiment 1 was initiated in mid October 2004 and Experiment 2 was initiated in late March 2005. Cows were assigned to either a 100% TMR diet (100:00, no access to pasture) or one of the following three formu...
متن کاملIntake of High Producing Holstein Cows Grazing Pasture or Fed a Total Mixed Ration
(week 4). Intake was estimated in week 4 by dosing twice daily with 5 g Cr 2 O 3 for 10 days. Fecal samples were collected twice daily on days 7 to 11 of Cr 2 O 3 dosing, with pre-grazing pasture being sampled on days 6-10 of dosing. Fecal output, calculated from fecal chromium concentrations, and in vitro digestibility (IVDMD) were used to calculate intake (Parker et al. 1989). The intake of c...
متن کاملIn vitro evaluation of total mixed ration supplemented with exogenous fibrolytic enzymes for crossbred cows
AIM The study was conducted to evaluate the levels of exogenous fibrolytic enzymes (EFE) on in vitro digestibilities of dry matter (DM) and organic matter (OM), total gas production (TGP), metabolizable energy (ME) content, and microbial biomass production (MBP). MATERIALS AND METHODS The total mixed ration (TMR) was prepared using 30% each of sorghum hay and groundnut straw and 40% compound ...
متن کاملIdentification of Aflatoxin Contamination in the Milk of Cows Fed on Moldy Dry Bread as a Part of Their Ration
Introduction: Contamination of foodstuffs with fungi and the toxins produced by them is a very important problem in human and animal feeding. In most villages around Shiraz, in small-scale dairy farms, dry leftover bread which is mostly contaminated with fungi is used as a part of food ration for animals. The thin-layer chromatographic method which was used for determination of aflatoxin. Inges...
متن کاملRumen fermentation and performance of Hanwoo steers fed total mixed ration with Korean rice wine residue
BACKGROUND This study was conducted to evaluate the effects of adding Korean rice wine residue (RWR) in total mixed ration (TMR) on in vitro ruminal fermentation and growth performance of growing Hanwoo steers. METHODS For in vitro fermentation, the experimental treatments were Control (Con: 0 % RWR + TMR), Treatment 1 (T1: 10 % RWR + TMR), and Treatment 2 (T2: 15 % RWR + TMR). The rumen flui...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2018
ISSN: 0022-0302
DOI: 10.3168/jds.2017-13092