We hypothesized that feeding 25-hydroxyvitamin D3 [25-(OH)D3] during lactation and prepartum in conjunction with negative dietary cation-anion difference diets would improve milk production, increase the probability of pregnancy, reduce incidence postcalving diseases. Cows from 4 dairies transition were used 2 randomized cohort experiments. In Experiment 1 (Exp. 1), cows assigned to control [CO...

This study aimed to estimate the changes in milk yield, fat, energy indicators [NEFA, BHBA, Dry MatterIntake (DMI) and Body Condition Score (BCS)] concentration of innate immune molecules (Haptoglobin: Hp,Serum Amyloid A: SAA, TLR-4, TNF-α, IL-1β, IL-6, IL-8), during transition period primiparous andmultiparous dual-purpose zebu (Deoni) cows. The blood sample was collected at weekly intervals p...

Two studies were performed to evaluate the effects of dried distillers grains with solubles (DDGS) on the lactational performance of dairy cows. The intent of experiment 1 was to evaluate the effects of feeding increasing concentrations of DDGS on the feed intake and production of Holstein dairy cows. Twenty multiparous Holstein cows averaging 76 +/- 24 d in milk and 638 +/- 68 kg of body weigh...

The objective of this study was to determine associations between body weight (BW) and body condition score (BCS) variables indicating a more severe negative energy balance in early lactation and events of somatic cell counts (SCC) >250,000 cells/mL and SCC >400,000 cells/mL in dairy cows. We studied lactations from 634 primiparous and 1,086 multiparous Israeli Holstein dairy cows originating f...

In swine artificial insemination, several dose regimens are applied, ranging from 1.5 x 10(9) to 6.0 x 10(9) spermatozoa per intra-cervical insemination dose. A lower sperm dose is more profitable for artificial insemination centres and offers a more effective use of superior boars. To evaluate fertility, 50 boars were used for a total of 10 773 homospermic first inseminations at a dose of 2 bi...