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The effect of adding plant extracts to ruminal fluid on the formation of conjugated linoleic acid (CLA) isomers and on fermentation parameters was evaluated. Initially, fifteen plant extracts at two levels (1 and 2 mg · ml–1 buffered rumen fluid; BRF) were incubated with BRF and substrate (hay and concentrate, 50:50) at 39°C for 24 h, in a completely randomized block design. In the second experiment,...
The quality of five commercial monocalcium phosphates (MCP) and dicalcium phosphates with natural admixtures of hydrated and dehydrated forms was assessed on the basis of their crystalline phases determined by roentgenographic irradiation, Ca and P contents, and solubility in water, 2% citric acid, 0.4% HCl, and ammonium citrate solutions. The phosphates were used in diets fed between days 1 and 35...
The objective of this study was to estimate lactation curves of milk urea concentration for primiparous Polish Holstein-Friesian cows, milked in different months and air temperatures, using random regression test-day models. In the study, 6 086 431 test-day records collected in the years 2001 to 2009 from 900 962 cows were analysed. Regression curves in classes of environmental effects were modeled...
The aim of this study was to evaluate the effects of dietary supplementation of bamboo leaf extract (BLE) on the growth performance, antioxidant traits, immune function, and lipid metabolism of weaning piglets. After weaning at 21 days, two hundred and forty healthy piglets (Large White × Landrance) were randomly assigned to 4 treatments with 6 pens and 10 piglets per pen. The control group (Ctr)...
The effects of two doses of a verbascoside-based dietary supplement on performance, some blood parameters, and plasma oxidative status in Lacaune suckling lambs were investigated. Twenty-four lambs were divided into three groups of eight animals each and fed per os a dietary supplement with a plant extract from Lippia citriodora containing a phenylpropanoid glycoside, verbascoside: the low-verbascoside...
Twenty lactating Alpine goats were randomly allocated to two treatment groups to investigate the effect of feeding green maize on the fatty acid profile of milk and cheese. The control goats were fed lucerne hay ad libitum; the other group was fed green maize plants ad libitum; additionally, all animals received 350 g per day per goat concentrate of the same composition. The green maize diet considerably...
T-2 mycotoxin, a natural contaminant of cereals and agricultural products, is known to exhibit the severest toxicity and the lowest LD50 value among trichothecenes. Since quercetin has been reported to have strong antioxidant properties, the effect of quercetin and T-2 toxin on rabbit ovarian cell proliferation and apoptosis was assessed. In the ovaries, proliferating cells were analysed immunocytochemically...
The objective of the study was to determine beef production traits of dairy and dairy × beef breed crossbred heifers. The data from Finnish slaughterhouses included observations of 14 221 Nordic Red (NR), 6 348 Holstein-Friesian (Hol), 1 626 NR × Aberdeen Angus (NR × Ab), 1 136 NR × Blonde d’Aquitaine (NR × Ba), 802 NR × Charolais (NR × Ch), 487 NR × Hereford (NR × Hf), 3 699 NR × Limousin (NR × Li),...
The aim of the study was to investigate the effect of dietary herbal extracts derived from garlic (Allium sativum), rosemary (Rosmarinus officinalis), sage (Salvia officinalis), oregano (Origanum vulgare), nettle (Urtica dioica), purple coneflower (Echinacea purpurea), or thyme (Thymus vulgaris) on the performance indices and oocyst output in broilers experimentally infected with 190 000 oocysts of...
The aim of this work was to evaluate in vitro the effect of replacing 0%, 50%, 75% or 100% of cereal-based concentrate in diets based on lucerne hay with feed blocks containing barley grain or 650 g · kg–1 fresh matter of greenhouse waste fruits (tomato, cucumber, or a 1:1 mixture of tomato and cucumber) on ruminal fermentation, methane production, and bacterial and methanogen population sizes. The...
Feed-efficient ruminant production is a key topic in the further development of ruminant husbandry all over the world. Ruminants contribute substantially to human nutrition by production of milk and meat. They are also extremely useful for mankind by providing other important products and labour, such as skins, clothing, bones, dung, heating material, and working as draft animals, etc. The microorganisms...
The objective of this study was to analyse the influence of introducing Schweres Warmblut (SchW) blood on the zoometric features of Silesian breed horses. The research material was pure Silesian breed horses and crossbreeds with the SchW breed, born in the period of 1984–2004. The population was divided into four groups, depending on the contribution of Schweres Warmblut blood (0.0%, 0.1–24.9%, 25...
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