in order to examine the effect of degradability rates of different starch sources on performance of holstein dairy cows in their early lactation, twenty multiparous lactating holstein cows (586±33.7 bw; 48.15±9.32 dim) were made use of in a randomized complete block design of four treatments during the 65 days of the experimental period. cows were fed the following diets: 1) 100% barley, 2) 67%...

Eighty eight Friesian cows and heifers were fed one of four complete diets based on maize silage and containing increasing levels of grain (from 0 to 500 g DM/kg diet DM), in two trials. Days from calving to first observed oestrus and to conception were recorded as were yields of milk and milk fat and live weight changes during early lactation. In the second trial, complete lactation data were ...

During pregnancy, selenium (Se) and folate requirements increase, with deficiencies linked to neural tube defects (folate) and DNA oxidation (Se). This study investigated the effect of a high-fat diet either supplemented with (diet H), or marginally deficient in (diet L), Se and folate. Pregnant female mice and their male offspring were assigned to one of four treatments: diet H during gestatio...

In surrogate pregnancies genetic parents have little opportunity for early bonding with their infants either prenatally (in utero) or during the immediate postnatal period. Procedures commonly used to induce lactation include both pharmacologic and nonpharmacologic methods often in combination. Studies reporting induced lactation are sparse due to the rarity of augmented lactation. Here we repo...

the aim of this study was to evaluate the effect of substitution of soybean meal with canola meal and measure its effects on rumen anaerobic fungal population in lactation iranian of holstein cows. from d 5 to 56 postpartum, cows were fed diets that were isoenergetic containing soybean meal (sbm; n = 3) or canola meal (cm; n = 3). cows were housed in tie stalls and fed tmr two times a day. comp...

this study was carried out to investigate the relationship between early lactation curve parameters andcalving interval in holstein cows of iran. in order to describe the lactation curve, the incomplete gammafunction was fitted to 5,754,428 test-day milk records corresponding to 766,108 lactations on 315,634 cowsin 2,448 herds. cows with higher milk yield during early lactation had shorter calv...

OBJECTIVE We determined the potential programming effects of maternal obesity and high-fat (HF) diet during pregnancy and/or lactation on offspring metabolic syndrome. STUDY DESIGN A rat model of maternal obesity was created using an HF diet prior to and throughout pregnancy and lactation. At birth, pups were cross-fostered, thereby generating 4 paradigms of maternal diets during pregnancy/la...

Citrate is a normal constituent of milk that affects milk-processing characteristics. It is an intermediate in the tricarboxylic acid cycle and plays an indirect role in fat synthesis by providing reducing equivalents in the form of NADPH. The objective of this study was to investigate variation in citrate with stage of lactation and de novo fatty acid synthesis, without confounding dietary eff...

BACKGROUND It is well accepted that reduced foetal growth and development resulting from maternal malnutrition are associated with a number of chronic conditions in later life. On the other hand such generation-transcending effects of over-nutrition and of high-protein consumption in pregnancy and lactation, a proven fact in all developed societies, are widely unknown. Thus, we intended to desc...

in surrogate pregnancies genetic parents have little opportunity for early bonding with their infants either prenatally (in utero) or during the immediate postnatal period. procedures commonly used to induce lactation include both pharmacologic and nonpharmacologic methods often in combination. studies reporting induced lactation are sparse due to the rarity of augmented lactation. here we repo...