We used 24 multiparous Holstein cows in 4 × 4 Latin square design to evaluate full-fat corn germ as a replacement for whole cottonseed and tallow in total mixed diets for lactating dairy cows. Experimental diets on a dry matter basis were: 1) control 3.5% fat; 2) whole cottonseed 5.1% fat; 3) tallow 5.1% fat; 4) full-fat corn germ 5.1% fat. Diets were fed as total mixed rations typical of that ...

The relationship between SARA and milk fat depression is inconsistent and complex. It can be surprisingly difficult, at times, to determine if a herd really has a low milk fat test or not. Normal milk fat percentage depends greatly on breed, season, and days in milk. Nutritional causes of milk fat depression (which may include SARA) only become a concern when these three major factors have alre...

One dairy goat herd of mixed breeds was investigated for frequency of genetic variants of alphas1-casein (as1-CN) and relationships between the genetic variants, milk composition, coagulation properties, and breed. Milk composition (percent total solids, solids-non-fats (SNF), fat, protein, casein, and as1-CN), genetic variants of as1-CN, and coagulation properties (coagulation time, coagulatio...

The changes in milk fat globules and fat globule surface proteins during concentration of whole milk using a pilot-scale multiple-effect evaporator were examined. The effects of heat treatment of milk at 95 degrees C for 20 s, prior to evaporation, on fat globule size and the milk fat globule membrane (MFGM) proteins were also determined. In both non-preheated and preheated whole milk, the size...

In this research, 272977 test day records collected from 659 herds during years 2001 to 2011 by the Iranian animal breeding center were used. In the first section the ability of different models to predict daily milk yield from alternative milk recording was tested. The result showed that a complex model including noon milking time plus the effect of lactation curve of Ali and Schaeffer functio...

background: the osteopontin (opn) is a highly phosphorylated glycoprotein in numbers of bovine tissues and milk. opn has been reported to be associated with milk production in cattle.objective: the genotype and allelic frequencies for opn and its association with milk production will be evaluated in iranian holstein bulls.  materials and methods: bulls dna (100) was isolated. oligo was used for...

Smen is a milk fat isolated by ‘boiling-off’ water. Milk fat was first converted into butter and then into smen. Smen product is utilized for culinary cooking and frying of different food. Smen has better shelf-life than other indigenous dairy products due to its lower moisture content. However, it undergoes deterioration (lipolysis and oxidation of milk fat) causes flavor impairment, lowers nu...

THE component fatty acids and glycerides of the milk-fat of the camel have been studied in detail, in order to compare them with those of the milk-fats of the cow [Hilditch et al., 1929; 1930; 1931], buffalo [Bhattacharya and Hilditch, 1931], sheep and goat [Dhingra, 1933]. In north-western parts of India milk from camels is utilised as an article of diet by some tribes, but the fat is rarely e...

background: appetite lowering characteristics of dairy have attracted scientists to look for its effect on energy intake particularly among children. in the present study, we tried to assess the effect of low-fat milk on total and short-term energy intake among obese boys in a randomized three-way cross-over clinical trial. methods: a total of 34 obese 10-12-year-old boys were randomized to con...

The effects of fat supplementation and weaning system on commercial milk yield and milk composition were determined on 129 East Friesian crossbred ewes. Prior to lambing, ewes were randomly assigned to one of two weaning systems. The DY1 system involved weaning of ewes from their lambs within 24 to 36 hr post-partum and then twice-daily machine milking. In the MIX system, ewes had access to the...