Fil:Cow female black white.jpg

Storlek på förhandsvisningen: 800 × 534 pixlar. Andra upplösningar: 320 × 214 pixlar | 640 × 427 pixlar | 1 024 × 684 pixlar | 1 280 × 855 pixlar | 2 700 × 1 803 pixlar.

Originalfil ‎(2 700 × 1 803 pixlar, filstorlek: 887 kbyte, MIME-typ: image/jpeg)

Denna fil tillhandahålls av Wikimedia Commons. Informationen nedan är kopierad från dess filbeskrivningssida.

Sammanfattning

Beskrivning

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

före september 2002

Källa

www.ars.usda.gov: Image Number K5176-3

Skapare

Keith Weller/USDA

Tillstånd
(Återanvändning av denna fil)

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.

العربية ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ português ∙ sicilianu ∙ Türkçe ∙ Tiếng Việt ∙ 中文 ∙ +/−

This file, which was originally posted to www.ars.usda.gov: Image Number K5176-3, was reviewed on 6 April 2019 by reviewer Roy17, who confirmed that it was available there under the stated license on that date.

Error in {{Information}} template: unknown parameter "1".

Filhistorik

Klicka på ett datum/klockslag för att se filen som den såg ut då.

	Datum/Tid	Dimensioner	Användare	Kommentar
nuvarande	29 augusti 2023 kl. 05.31	2 700 × 1 803 (887 kbyte)	ReichLover1997	Reverted to version as of 21:09, 24 May 2006 (UTC)
	1 september 2018 kl. 02.42	2 190 × 1 680 (725 kbyte)	Hohum	Cropped, colour adjust
	24 maj 2006 kl. 23.09	2 700 × 1 803 (887 kbyte)	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