نتایج جستجو برای: milk fat percent
تعداد نتایج: 277063 فیلتر نتایج به سال:
Forty Holstein dairy cows receiving a 38% concentrate diet based on maize silage were assigned to either a control group, either a biotin group, receiving 20 mg of biotin per day from 15 days before expected calving date and for 120 days after calving. Milk production was measured daily, milk fat content, protein content, urea and somatic cell counts were determined weekly from week 2 to week 1...
Heat stress at the time of conception affects the subsequent milk production of primiparous Holstein cows; however, it is unknown whether these effects are maintained across multiple lactations. Therefore, the objective of the current study was to examine the relationship between periconceptional heat stress and measurements of milk production and composition in cows retained within a herd for ...
to test the effect of culling herd life from the breeding goal function, 4 different selection indices were established as: index 1: using milk production (milk), fat percentage of milk (fat%) and rear udder height (ruh); index 2: using milk , fat% and fore teat placement (ftp), index 3: using milk, fat% and fore udder attachment (fua); and index 4: using milk, fat%, ruh, ftp and fua) under two...
Seventy-two pregnant ewes were al lot ted to three ration t reatment groups: 1) Control: corn silage and alfalfa pellets; 2) Tallow: corn silage, alfalfa pellets and protected tallow; 3) Polyunsaturated (P/S): corn silage and protected soybean and sunflower seeds. Diet influenced plasma glucose and linoleic acid content of esterified, but not of non-esterified, fat ty acids in ewe plasma. Propo...
Background and Objectives: Considering high levels of pasteurized and UHT milks (simple and flavored) production and consumtion in Iran, especially in adolescents and young people, decreases in total fat and sucrose levels as the most important national goals for the prevention of non-communicable diseases such as cardiovascular diseases and diabetes are important. Therefore, the aim of this st...
the aim of the present study was to estimate genetic and phenotypic parameters of milk production traits in the first and second lactations of romanian simmental dairy cattle. for the estimation of variance, heritability, genetic and phenotypic correlations among milk yield, fat yield, protein yield, and percentages of fat and protein, 3400 first and second lactation records over a period of fi...
Ninety-five percent of US households purchase fluid milk at retail and are increasingly demanding wholesome, nutritious, and sustainable products. These shifts in consumer demand present a growth opportunity for the dairy industry to create value-added products for the fluid milk and beverage categories beyond the traditional gallon jug. Based upon data from the IRI DMI Custom Dairy Milk Databa...
The most important traits of animal are affected by quantitative trait loci and environmental effects. Peroxisome proliferator’s active receptor gamma co activator 1 alpha (PPARGC1A) gene is a member of transcription co activators family, which plays a central role in cellular energy hemostasis regulating. In this study, blood samples were collected from hundred Brown Swiss cow and DNA was extr...
background: methionine has been suggested as the firstlimitingamino acid for milk production in ruminants. it is importanthow to increase milk protein yield and milk fat in dairy ruminants.objectives: this study was set to investigate the effect of rumenprotected methionine (rpmet) on milk composition of lactatingcashmere rayeni goats. methods: 40 healthy singletoncashmere rayeni goats about 3 ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید