Milk Energy Yield and the Correlation between Fat Percentage and Milk Yield
نویسندگان
چکیده
منابع مشابه
Variances of direct genetic effects, maternal genetic effects, and cytoplasmic inheritance effects for milk yield, fat yield, and fat percentage.
Milk yield, fat yield, and fat percentage during the first three lactations were studied using New York Holsteins that were milked twice daily over a 305-d, mature equivalent lactation. Those data were used to estimate variances from direct and maternal genetic effects, cytoplasmic effects, sire by herd interaction, and cow permanent environmental effects. Cytoplasmic line was traced to the las...
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When the Wisconsin dairy sheep industry got started in the mid 1990s, cheesemakers had to get accustomed to a whole new source of milk. All were familiar with cow milk and some were familiar with goat milk. However, sheep milk was much more concentrated with about twice as much fat and 40% more protein that cow or goat milk. They also found that sheep milk responded differently in the cheese ma...
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این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...
Effect of pasture species on milk yield and milk composition
One IO-day experiment in autumn 1994 then four lo-day experiments throughout the 1994195 lactation in a complete Latin square investigated the effect of pasture species on yield, composition and total colour of milk from dairy cows. Treatments were Grasslands Kopu white clover (Trifolium repens L.), Yatsyn1 perennial ryegrass (L&urn perenne L.), Grasslands Kahu timothy (Phfeum pratense L.) and ...
متن کاملLinearity of regression of milk energy on fat percentage.
From the last line Gaines and Davidson (I9~3) derived the formula, F C M = M (.4q-.I5 f) or F C M = . 4 M-+-I5 F, in which FCM is milk energy in terms of pounds of natural whole cows' milk of 4 percent fat content, M is milk in pounds and F is milk fat in pounds. Recently, Bonnier, Hansson and Jarl (I946) report that the regression of milk energy per unit milk on fat percentage is not linear an...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1940
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(40)95532-1