In a 120 day feeding trial, 8 cattle heifers (87±5 kg and 6 to 7 months) were randomly divided into two equal groups of four animals each (control and supplemented). During the trial, heifers in both the groups were offered National Research Council (NRC) recommended diet with or without yeast supplementation. The diet was formulated by adapting the small dairy breeds heifers’ nutrients require...

The effects of an increasing proportion of crushed linseed (CL) in combination with varying forage type (grass or corn silage) and forage to concentrate ratio (F:C), and their interactions on milk fatty acid (FA) profile of high-producing dairy cows was studied using a 3-factor Box-Behnken design. Sixteen Holstein and 20 Swedish Red cows were blocked according to breed, parity, and milk yield, ...

Different medicinal plants have been used in animal and poultry nutrition in last decade. It seems that there are some potential to these medicinal plants to replace with common antibiotics. Licorice root (Glycyrrhiza glabra) is a medicinal plant that extensively was used in different studies. In the present study, the effect of dietary addition of licorice root on performance and blood energy ...

this study was conducted to evaluate the effects of extruded linseed on milk production, dry matter intake and reproduction performance of 300 holstein lactating cows (35±15 days in milk; 41±9/8 kg/day of milk production). cows were utilized in a completely randomized experimental design, comprised of: 2 treatments (concentrate containing 7 percent extruded linseed vs control) with a number of ...

Growth trial of thirteen weeks’ duration was carried out on 24 pigs (2 months age; 12.5 kg b. wt.) which were divided into four groups of 6 pigs each and were fed with control diet concentrated feed mixture (CFM) (T0), CFM plus polyherbal superliv (500 g/ton) (T1), CFM plus polyherbal Ruchamax (500g/ton) (T2) and CFM plus AV/AGP/10 polyherbal (500g/ton) (T3). The dry mater intake (DMI) (g/d) in...

Extensive efforts have been made to identify more feed-efficient dairy cows, yet it is unclear how selection for feed efficiency will influence metabolic health. The objectives of this research were to determine the relationships between residual feed intake (RFI), a measure of feed efficiency, body condition score (BCS) change, and hyperketonemia (HYK) incidence. Blood and milk samples were co...

Understanding forage quality and the factors that affect its constituents will help improve livestock production by making decisions that optimize forage nutritive value and intake. This investigation was conducted in Zagros semi-arid rangeland center, Iran to determine forage quality of several grass and legume species. Samples were collected at early bloom, from 5 m long and 0.10 m wide strip...

The experiment was conducted to examine the replacement of maize fodder withmaize silage on dry matter intake, weight gain and feed efficiency in male buffalo calves. Total 18no. young calves with body 250 + 20 kg having age around 24 monthswere randomly distributed into three groups containing 6 each group.A diet 16% Crude Proteinand 2.1 Mcal/kg energy prepared fed at rate 1% live allexperimen...

To differentiate between the effects of heat stress (HS) and decreased dry matter intake (DMI) on physiological and metabolic variables in growing beef cattle, we conducted an experiment in which a thermoneutral (TN) control group (n=6) was pair fed (PF) to match nutrient intake with heat-stressed Holstein bull calves (n=6). Bulls (4 to 5 mo old, 135 kg body weight [BW]) housed in climate-contr...