Conjugated linoleic acid (CLA) isomers effect an impressive range of biological processes including the ability to inhibit milk fatty acid synthesis. Although this has been demonstrated in several mammals, research has been most extensive with dairy cows. The first isomer shown to affect milk fat synthesis during lactation was trans-10, cis-12 CLA, and its effects have been well characterized i...

this study investigated the effect of season (wet and dry) on milk composition of the dromedary camel (camelus dromedarius). milk samples representing the wet and dry seasons were analyzed for total solids (ts), fat (f), solids-non-fat (snf), ash, crude protein (cp), nitrogen soluble at ph 4.6 (sn), mineral content (mc) and casein fraction (cnf). camel milk had higher (p<0.05) fat content in th...

stats are a family of latent transcription factors that reside in the cytoplasm of resting cells. the stat1 transcription factor gene located on the chromosome 2 at interval 60 to 63 cm. this factor upon stimulation with inf gamma, dimerizes and translocate to the nucleus where mediates transcriptional regulation. in this study, we estimated the allele and genotype frequencies of stat1/pag1 gen...

akbar pirestani,*, mohammad javad bagheri, sayed mahdi hashemi, amir hossine asgarishahi   department of animal science, khorasgan (isfahan) branch, islamic azad university, isfahan, iran     *corresponding author: email: [email protected]     received: 20 july 2013   accepted: 21 november 2013       abstract this study was conducted to evaluate the impact of se+vit e and cu injection on...

BACKGROUND The rate at which a particular fat is digested has an effect on its bioavailability and on the lipid profile of the blood. Milk fat is a very complex mixture of triacylglycerols, resulting in a very wide melting range (from &ndash;40 to +40&deg;C). Because temperature has a pronounced effect on the physicochemical state of milk fat (i.e. crystallisation of different fat fractions), t...

PURPOSE To determine tocopherol and fat content of Greek mother's milk during the first 6 months of exclusive breastfeeding and correlate with maternal diet characteristics. METHODS Milk samples and dietary records were obtained by mothers at 1st (n = 64), 3rd (n = 39) and 6th (n = 23) month postpartum. Milk tocopherol content was determined by high-performance liquid chromatography method (H...

Nutrition has a significant effect on reproduction and lactation in Ruminant. Supply of require nutrient of dairy cows and ewes in early lactation is the main challenges that will be considered, since in most cases the animals facing negative energy balance after calving and the beginning of the period of lactation. Negative energy balance may sometimes result in reduced livestock production an...

The effect of nutrition on milk fat yield and composition has largely been investigated in cows and goats, with some differences for fatty acid (FA) composition responses and marked species differences in milk fat yield response. Recently, the characterization of lipogenic genes in ruminant species allowed in vivo studies focused on the effect of nutrition on mammary expression of these genes, ...

Four lactating Holstein cows producing about 21 kg milk/day were fed complete rations containing 0, 5, 15, and 25% whole cottonseed in a 4 X 4 Latin square design. Diets were fed ad libitum. Periods were 21 days in length with total collections of feces and urine during the last 7 days of each period. Digestibilities o nitrogen, lipid, and energy increased with increasing cottonseed in the diet...

This study was conducted to evaluate the yield and quality parameters of milk from 60 indigenous South African goats of different genotypes namely Nguni, Boer and Nondescript reared under a free ranging system. Milk yield and quality parameters (milk fat, protein, lactose, solid non-fat and minerals) from Nguni (10), Boer (10) and Non-descript (10) goats was measured and analysed per week at ea...