Histamine Levels in Forages and Dry Matter Intake of Heifers
نویسندگان
چکیده
منابع مشابه
1 Dry Matter Intake
Dry matter intake (DMI) is fundamentally important in nutrition because it establishes the amount of nutrients available to an animal for health and production. Actual or accurately estimated DMI is important for the formulation of diets to prevent underfeeding or overfeeding of nutrients and to promote efficient nutrient use. Underfeeding of nutrients restricts production and can affect the he...
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Dietary forage NDF (fNDF) offers the potential of combining fiber and its particle size influences in a common index. For this reason, it may be more precise than dietary NDF or proportion of concentrate to predict dairy cow responses. To evaluate this hypothesis a database was compiled from 116 published experiments (n = 289 treatments) where dietary NDF or concentrate varied. Forages were lon...
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Ten male Merghoz goats with initial live weights of 29.2 ± 1.2 kg (Mean±SE) were used to investigate the effect of natural changes in photoperiod on dry matter intake (DMI) and reproductive activity during a 365 day study. The bucks were housed in individual pens, under natural daylength condition at west of Iran, Kermanshah (34˚ 18¢N and 47˚ 3¢E and 1420 m above sea level). A diet was offered ...
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Prediction of Dry Matter Intake in Lactating Holstein Dairy Cows Offered High Levels of Concentrate
Accurate estimation of dry matter intake (DMI) is a prerequisite to meet animal performance targets without penalizing animal health and the environment. The objective of the current study was to evaluate some of the existing models in order to predict DMI when lactating dairy cows were offered a total mixed ration containing a high level of concentrates and locally produced agricultural by-pro...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1964
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(64)88887-1