Pierwòtny lopk(2700 × 1803 pikslów, miara lopka: 887 KB, ôrt MIME: image/jpeg)

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Òpisënk
English: Holstein-Friesian milk cow

Because much of the cost of a cow is the feed and labor needed to maintain her, fewer but higher yielding cows mean lower priced milk. Dairy herd improvement ultimately benefits consumers.

That's why it's just as important to keep complete and accurate records as it is to keep the cows contented. The National Cooperative Dairy Herd Improvement Program has been tracking Bossy's milk yields since 1905.

Over the years, this program has made enormous contributions to dairy cattle breeding. ARS scientists receive the lactation records of all herds enrolled in the program and use the figures to rank the bulls that sire the nation's dairy cows and to rank the cows themselves.

The results of years and years of scientific dairying? Milk production has been trending upward for more than 25 years in the United States-from about 117,000 million pounds in 1970 to more than 150,000 million pounds in 1994-even though the number of milk cows has been reduced.
Nederlands: Een koe
Datum przed wrześniem 2002
date QS:P,+2002-09-00T00:00:00Z/7,P1326,+2002-09-00T00:00:00Z/10
Zdrój www.ars.usda.gov: Image Number K5176-3
Aùtor Keith Weller/USDA
Przistãp
(Ùżëcé znowa negò lopka)
Public domain This image is in the public domain because it contains materials that originally came from the Agricultural Research Service, the research agency of the United States Department of Agriculture.

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Ten plik, opublikowany pierwotnie w serwisie www.ars.usda.gov: Image Number K5176-3, został sprawdzony 6 kwietnia 2019 przez administratora lub redaktora grafik Roy17, który stwierdził, że jest on dostępny w tymże serwisie pod powyższą licencją.
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Black White cow in green grass field in farm (livestock)

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przedstawia polski

typ MIME polski

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908 691 bajt

wysokość polski

1803 piksel

szerokość polski

2700 piksel

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Datum/CzasMiniaturaMiaraBrëkòwnikÒpisënk
aktualny05:31, 29 zél 2023Miniatura wersëji z 05:31, 29 zél 20232700 × 1803 (887 KB)ReichLover1997Reverted to version as of 21:09, 24 May 2006 (UTC)
02:42, 1 séw 2018Miniatura wersëji z 02:42, 1 séw 20182190 × 1680 (725 KB)HohumCropped, colour adjust
23:09, 24 môj 2006Miniatura wersëji z 23:09, 24 môj 20062700 × 1803 (887 KB)Siebrand{{Information| |Description= {{nl|Een koe}} {{en|Because much of the cost of a cow is the feed and labor needed to maintain her, fewer but higher yielding cows mean lower priced milk. Dairy herd improvement ultimately benefits consumers. That's why it's j

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