Fitxer:Cow female black white.jpg

Mida d'aquesta previsualització: 800 × 534 píxels. Altres resolucions: 320 × 214 píxels | 640 × 427 píxels | 1.024 × 684 píxels | 1.280 × 855 píxels | 2.700 × 1.803 píxels.

Fitxer original ‎(2.700 × 1.803 píxels, mida del fitxer: 887 Ko, tipus MIME: image/jpeg)

Logo del projecte Wikimedia Commons

Aquest fitxer i la informació mostrada a continuació provenen del dipòsit multimèdia lliure Wikimedia Commons.

Vegeu la pàgina original a Commons

Resum

Descripció

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

Data

abans setembre de 2002

Font

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

Autor

Keith Weller/USDA

Permís
(Com reutilitzar aquest fitxer)

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 ∙ +/−

Aquest fitxer, que originalment va ser publicat en www.ars.usda.gov: Image Number K5176-3, va ser revisat 6 April 2019 pel revisor Roy17, qui va confirmar que estava disponible allà sota la llicència establerta en aquesta data.

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

Historial del fitxer

Cliqueu una data/hora per veure el fitxer tal com era aleshores.

	Data/hora	Dimensions	Usuari/a	Comentari
actual	05:31, 29 ago 2023	2.700 × 1.803 (887 Ko)	ReichLover1997	Reverted to version as of 21:09, 24 May 2006 (UTC)
	02:42, 1 set 2018	2.190 × 1.680 (725 Ko)	Hohum	Cropped, colour adjust
	23:09, 24 maig 2006	2.700 × 1.803 (887 Ko)	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