Barkas:Cow female black white.jpg

Gedhéning pratuduh iki: 800 × 534 piksel Résolusi liya: 320 × 214 piksel | 640 × 427 piksel | 1.024 × 684 piksel | 1.280 × 855 piksel | 2.700 × 1.803 piksel.

Berkas asli ‎(2.700 × 1.803 piksel, ukuran barkas: 887 KB, jinis MIME: image/jpeg)

Barkas iki saka Wikimedia Commons lan kena kanggo proyèk liya. Panyandraning kaca panyandra barkasé kapacak ing ngisor.

Ringkesan

Panyandra

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

Tanggal

before Sèptèmber 2002

Sumber

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

Juru pangarang

Keith Weller/USDA

Idin
(Nganggo manèh barkas iki)

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 ∙ +/−

Berkas ini sebelumnya diunggah ke www.ars.usda.gov: Image Number K5176-3 dan ditinjau pada tanggal 6 April 2019 oleh pengguna peninjau yaitu Roy17 yang mengonfirmasi bahwa pada tanggal tersebut berkas ini betul memiliki lisensi sesuai yang dinyatakan.

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

Sajarahing berkas

Klik ing tanggal/wektuné saprelu ndeleng rupané barkasé nalika tanggal iku.

	Tanggal/Wektu	Alang ujur	Naraguna	Tanggepan
saiki	29 Agustus 2023 03.31	2.700 × 1.803 (887 KB)	ReichLover1997	Reverted to version as of 21:09, 24 May 2006 (UTC)
	1 Sèptèmber 2018 00.42	2.190 × 1.680 (725 KB)	Hohum	Cropped, colour adjust
	24 Mèi 2006 21.09	2.700 × 1.803 (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