نتایج جستجو برای: milk fat percent
تعداد نتایج: 277063 فیلتر نتایج به سال:
T. .HE THYROID gland affects milk production. If the gland is removed from a cow, her milk decreases 75 percent. If it is put back, in the form of dried thyroid tissue or the synthetic hormone, thyroxine, her yield returns to normal. Both substances stimulate normal cows to give more milk and fat. The difficulty has been that dried thyroid tissue is too costly to feed cows, and if the total sup...
BACKGROUND Milk fat is important in terms of economic value and in its potential to provide information concerning cow diet and health. Under current milk payment schemes in Ireland farmer income is directly linked to milk fat production. METHODS A descriptive analysis of milk fat depression (MFD) as calculated from test day milk recording data across all milk recording herds from 2004 to 201...
This experiment was aimed to study the association between the DGAT1 K232A polymorphism and milk production traits and somatic cell score (SCS) in Iranian Holstein dairy cows. The records of 408 animals from five dairy herds were randomly identified and then genomic DNA was extracted from blood using the modified-salting method described by Miller. RFLP-PCR was performed to obtain all the polym...
OBJECTIVES There is increasing evidence that breastfeeding has long-term effects on offspring biology and health, which has heightened interest in understanding the extent of variation in breast milk composition and its underlying determinants. Here, we report variation in milk macronutrient composition in a well-characterized cohort of young Filipino mothers and test underlying maternal predic...
this experiment was aimed to study the association between the dgat1 k232a polymorphism and milk production traits and somatic cell score (scs) in iranian holstein dairy cows. the records of 408 animals from five dairy herds were randomly identified and then genomic dna was extracted from blood using the modified-salting method described by miller. rflp-pcr was performed to obtain all the polym...
The Reggiana population is a dairy cattle breed reared in the province of Reggio Emilia, located in the Italian Po Valley. Milk from this breed has been mainly used for the production of Parmigiano Reggiano cheese. The Reggiana breed has shrunk from 84,000 cows in 1940 to 200 animals in 1984, having being replaced by much more productive HolsteinFriesian cows. Thanks to government support the b...
This experiment was aimed to study the association between the DGAT1 K232A polymorphism and milk production traits and somatic cell score (SCS) in Iranian Holstein dairy cows. The records of 408 animals from five dairy herds were randomly identified and then genomic DNA was extracted from blood using the modified-salting method described by Miller. RFLP-PCR was performed to obtain all the polym...
Improvement of feed efficiency in dairy farming economically has a great importance. In this study, the genetic parameters of net energy efficiency and its relationships with milk yield, 3.2% fat corrected milk, body weight, gross income and income over feed costs were investigated, by the 2589 monthly records collected from the 723 lactating cows in the 3 herds. The different requirements of e...
BACKGROUND High intake of sugar-sweetened beverages in childhood is linked to increased risk of obesity and type II diabetes later in life. Using three nationally representative surveys of dietary intake, we investigated beverage patterns and trends among US school-aged children from 1989/91 to 2007/08. METHODS 3, 583 participants ages 6-11 y old were included. We reported per capita trends i...
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