منابع مشابه
Tithonia diversifolia as a Supplementary Feed for Dairy Cows
The objective of this study was to examine the effects of Tithonia diversifolia as a supplementary forage on dairy cow performance and methane production. Nine lactating Holstein × Zebu dairy cows (519 ± 53.3 kg of body weight and 66 ± 13.3 d in milk) were paired by milk yield (21.3 ± 2.34 kg/d) and body weight and randomly assigned to three dietary treatments in a Latin square design with 21-d...
متن کاملFactors Affecting Feed Efficiency of Dairy Cows
Feed efficiency (FE) is a concept that has gained popularity in recent years in the dairy industry. Monitoring FE is becoming a more common benchmark for monitoring the profitability of milk production relative to dry matter (DM) intake. In today’s markets, feeds and commodities are becoming more costly, which is driving the requirement for more efficient utilization to maintain profitability. ...
متن کاملGossypol Content of Cotton Free Commercial Feed for Dairy Cows
Gossypol is a yellow pigment occurring in all parts of cotton plants, with the highest levels found in seeds, and it exhibits a variety of toxic effects. Few data are available on the content of gossypol in the commercial complementary feed and in feed raw materials. The present study was focused on the investigation of the presence of free gossypol in commercial complementary feed not containi...
متن کاملDairy cows value access to pasture as highly as fresh feed
Many dairy cows in the developed world are now housed exclusively indoors with fewer than 5% of the 10 million lactating cows in the United States having access to pasture during the grazing season. Indoor housing systems are designed to meet biological needs for food, water, hygiene, and shelter, but surveys of public and farmer opinion suggest that people think that pasture access is also imp...
متن کاملLECITHIN AS A SUPPLEMENT FOR MID-LACTATINg DAIRy COwS
1 Dept of Medicine Animal, Production and Health Padova Univ., Agripolis, Viale dell’Università, 16, 35020 Legnaro (PD), Italy 2 Istituto Zooprofilattico delle Venezie, Viale dell’Università, 10, 35020 Legnaro (PD), Italy ABSTRACT The study aimed at evaluating the effect of a daily dose of 14 g of choline administrated by using soy lecithins (LC group), a by-product of the biodiesel production ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1931
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(31)93464-4