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1

Effect of dietary nettle extract on pig meat quality

100%
Hanczakowska E., Swiatkiewicz M., Szewczyk A.
Medycyna Weterynaryjna
|
2007
|
tom 63
|
nr 05
525-527
The effect of nettle extract supplement for fattening pig feed on meat quality was assessed on 42 pigs initially weighing about 60 kg and about 110 kg at the end of the experiment. All pigs were fed with a standard finisher feed mixture with no supplement in group I (control) and supplemented with 500 mg or 1000 mg of nettle extract per 1 kg of feed in groups II and III, respectively. Commercial water extract from common nettle containing 5.6 mg of tannins per 1 kg was used as a supplement. The meat of pigs receiving a higher dose of extract contained significantly more protein and less fat than those from both remaining groups. A supplement of nettle extract increased the lightness of meat and stabilized meat color for 6 months of storage at 20°C. Moreover, it slightly improved meat oxidative stability during frozen storage and raised polyunsaturated fatty acids (PUFA) content mainly due to diminishing monounsaturated fatty acids (MUFA) content. It was claimed that water extract from nettle had a positive effect on meat quality improving oxidative stability and the polyunsaturated / saturated fatty acids ratio.
2

Effects of dietary phytic acid on digestibility of main nutrients and mineral absorption in mink [Mustela vison]

84%
Denstadli V., Romarheim A. T., Sorensen M., Ahlstrom O., Skrede A.
Journal of Animal and Feed Sciences
|
2010
|
tom 19
|
nr 1
104-112
The objective of the study was to evaluate the effects of dietary phytic acid (IP6) on the apparent total tract digestibility (ATTD) of main nutrients and apparent absorption of minerals in mink (Mustela vison). A basal moist diet consisting of fish meal, fish oil and wheat starch was added at different concentrations of soluble sodium phytate, thus obtaining six diets with graded levels of IP6 (0-19.9 g IP6 kg dry matter-1). Each diet was fed to four adult male mink kept in individual cages. There were no significant effects of IP6 on the ATTD of crude protein, fat, starch or energy, whereas the apparent absorption of copper and magnesium was significantly reduced with increasing concentration of IP6. Thus, as observed in other monogastric animals, we conclude that dietary IP6 could impair mineral status in mink, but may not affect digestibility of energy-yielding nutrients.
3
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The effect of dietary fat source on feed digestibility in chinchillas (Chinchilla lanigera)

84%
Glogowski R., Dzierzanowska-Goryn D., Rak K.
Annals of Warsaw University of Life Sciences - SGGW. Animal Science
|
2013
|
tom 52
The objective of this study was to determine the effects of the inclusion of the vegetal and animal fat to the diet on the apparent digestibility in chinchillas. 18 young chinchillas were assigned to three groups and fed control diet or with the addition of either linseed (VF) or lard (AF). The apparent digestibility coefficient (ADC) was calculated for dry matter (DM), organic matter (OM), crude protein (CP), crude fibre (CF), nitrogen free extract (NFE) and ether extract (EE). The results showed that there was no significant effects of fat addition on most of the studied constituents except for increased digestibility of EE.
4

The effect of dietary Camelina sativa oil on quality of broiler chicken meat

84%
Pietras M. P., Orczewska-Dudek S.
Annals of Animal Science
|
2013
|
tom 13
|
nr 4
5

Dietary effect on fry production and growth performance of sailfin molly, Poecilia latipinna, in salt water

84%
Kumaraguru Vasagam K. P., Shanmugam A., Rajagopal S.
Acta Ichthyologica et Piscatoria
|
2007
|
tom 37
|
nr 1
29-35
Background. The viviparous sailfin molly, Poecilia latipinna (Lesueur, 1821), is a popular ornamental fish that thrives in a wide range of salinities. It is well known that salt water of intermediate salinity (25‰) is suitable for mollies, especially for healthy breeding. Nutrition has been recognized to have a profound effect upon gonadal development and fry production in fish. Hence, the present work was carried out to evaluate the suitability of different practical diets, such as oyster meat, live tubificid worms, and formulated feed, on fry production, gestation period, and growth performance of P. latipinna in salt water. Materials and Methods. Materials and Methods. A trial was conducted on P. latipinna in salt water (25‰ salinity) to evaluate the suitability of oyster meat, live tubificid worms, formulated feed, and a mixture of these three diets, on breeding and growth. Results. Irrespective of diet, the gestation period was consistently 28 days. Maximum fry yield (460 fry) and better growth performance was obtained in brooders and juveniles respectively fed mixed diet. A positive correlation existed between the loss of weight due to spawning in the brooders and fry production in all dietary treatments. Among the dietary treatments there was a significant difference (P < 0.005) in growth performance parameters, such as weight gain [g], food conversion ratio (FCR), and specific growth rate (SGR). Conclusion. Among the four dietary treatments, the mixed diet performed well in both breeding and rearing experiments. Hence in commercial breeding units, mixed feeding regimen could be adopted with mollies in salt water.
6

Effect of dietary supplemental black cumin seeds on antioxidant activity in broilers

67%
Guler T., Ertas O. N., Kizil M., Dalkilic B., Ciftci M.
Medycyna Weterynaryjna
|
2007
|
tom 63
|
nr 09
1060-1063
The aim of this study was to investigate the potential antioxidant activity of black cumin seeds as a dietary supplement. Three hundred 3-day-old broiler chicks were divided randomly into five treatment groups (control, and black cumin at four levels) of 60 birds each. Black cumin seeds at 0.5%, 1%, 2% or 3% were added to the basal diet and their effects determined on malondialdehyde (MDA) and vitamin E levels in the serum, breast muscles, liver and heart muscles in the 42-day old broilers. When the diet was supplemented with 2% and 3% black cumin seed MDA concentration in serum (p < 0.05), breast muscle (p < 0.01), liver (p < 0.05) and heart muscle (p < 0.05) was significantly more reduced compared to birds fed 1% and 0.5% black cumin seeds and control diet. Supplementing the diet with black cumin seeds did not significantly affect vitamin E levels in serum and tissues. These results suggest that black cumin seeds could be considered as a natural potential antioxidant promoter for poultry, and showed the best responses at 2% and 3% level of inclusion.
7

Effects of dietary soyabean, rapeseed and linseed oils on performance, slaughter yield and fatty acid profile of breast meat in turkeys

67%
Jankowski J., Zdunczyk P., Mikulski D., Juskiewicz J., Mikulska M., Zdunczyk Z.
Journal of Animal and Feed Sciences
|
2012
|
tom 21
|
nr 1
The objective of this study was to determine the physiological effect of supplementing turkey diets with different vegetable oils, i.e. soyabean (S) oil, rapeseed (R) oil and linseed (L) oil, which have different concentrations of polyunsaturated fatty acids (PUFA). The total contents of n-6 PUFA and n-3 PUFA were as follows: diet S, 49.7 and 7.02%, diet R, 33.0 and 7.96%, and diet L, 30.3 and 30.6%; the n-6/n-3 PUFA ratio was 7.3, 4.4 and 1.0, respectively. The experimental materials comprised four groups of turkey hens (14 replications of fifteen birds each). The amount of dietary oil supplementation was increased from 2% in the first four weeks to 6% at the final stage of fattening (14-15 weeks). The apparent total tract digestibility of crude fat in 7-week-old turkeys (2.5% oil in diet) ranged from 89.9 to 91.1%, and showed no statistically significant differences. Dressing percentage, breast, thigh, and drumstick muscle contents did not differ among groups. Group L had a significantly higher intestinal fat weight (0.84% body weight (BW)) than the other groups (0.60-0.62%). In comparison with diet S, diets R and L contributed to a significant decrease in the levels of saturated fatty acids (from 32.9% to 30.3 and 30.2%) in breast meat lipids. In group L turkeys, the share of PUFA in total fatty acids in breast meat lipids was significantly higher (37.3% vs 29.4 and 27.1% in groups S and R, respectively), and the n-6/n-3 PUFA ratio was significantly lower (1.2 vs 5.6 and 5.1). As for the performance indices (final BW, feed conversion ratio), both rapeseed and linseed oils could be recognized as comparable alternatives to soyabeen oil (in both cases P>0.05 vs S group). However, the highest final BW followed the dietary treatment with linseed oil (P<0.05 vs group R)
8

Effects of dietary caprylic and capric acids on piglet performance and mucosal epithelium structure of the ileum

67%
Hanczakowska E., Szewczyk A., Okon K.
Journal of Animal and Feed Sciences
|
2011
|
tom 20
|
nr 4
9

The effects of dietary whey protein concentrate level on performance, selected intestinal tract and blood parameters, and thiobarbituric acid reactive substances in the liver and breast meat of broiler chickens

67%
Szczurek W., Szymczyk B., Arczewska-Wlosek A., Jozefiak D., Alloui M. N.
Journal of Animal and Feed Sciences
|
2013
|
tom 22
|
nr 4
The aim of this study was to investigate the effect of two levels of whey protein concentrate (WPC, 80.35% protein, 5.86% lactose) added to diets and duration of these treatments on growth and slaughter value, haematological parameters involved in immune processes, oxidative status of liver and breast muscle, and selected indices of gut function of broilers. A total of 560 Ross 308 broilers were randomly allocated into 7 groups with 10 replicates of 8 chickens per replicate. The experiment lasted 42 days and was divided into 3 successive feeding phases. The control group was fed basal diets consisted of maize, wheat and soyabean meal (C group). The other 6 groups received, for 7, 21 and 42 days basal diets with 8 or 32 g · kg–1 WPC added at the expense of soyabean meal (WL and WH groups, respectively). On day 42 group WH had a higher lymphocyte percentage (P < 0.05) compared to the control. The long-term (42 days) feeding with higher level of WPC significantly decreased the heterophile/lymphocyte ratio (P < 0.05 vs C). The number of erythrocytes on day 42 and the whole blood glucose on day 21 were significantly increased in WH birds than in controls. The concentration of serum total protein on both WPC levels was greater (P < 0.05) on day 21 compared with the C group. The reduction (P < 0.05) in liver thiobarbituric acid reactive substances (TBARS) and a tendency towards lower TBARS level in breast meat were observed in birds WH when fed for 42 days. Only higher dietary WPC amount provided for 42 days reduced the caecal and small intestinal pH values (P < 0.05 vs C). The ileal digestibility of crude protein was higher (P < 0.01) in birds fed with 32 g WPC during the first 21 days of life, compared to the C and WL treatments. The factorial ANOVA showed that on days 7, 21 and 42 the final body weight gain (BGW) and feed conversion ratio in broilers WL and WH were significantly better than in the C ones. Assessment of orthogonal contrasts revealed significantly higher (P < 0.05) final BWG in the WH broilers, compared to the WL dietary treatment; such effect was not observed in earlier feeding stages. Generally, carcass yield on both WPC dietary levels, and breast muscle percentage on WH treatment, were higher (P < 0.01 and P < 0.05, respectively) compare to the C group. In conclusion, WPC added to a conventional diets for growing chickens exerts a growth-promoting action and at a dose of 32 g · kg–1 may induce desirable changes in bird’s health and the intestinal tract metabolism.
10

Effects of dietary herbal essential oil mixture and organic acid preparation on laying traits, gastrointestinal tract characteristics, blood parameters and immune response of laying hens in a hot summer season

59%
Ozek K., Wellmann K. T., Ertekin B., Tarim B.
Journal of Animal and Feed Sciences
|
2011
|
tom 20
|
nr 4
11

Rye in human nutrition

59%
Lange E., Bartnikowska E., Rakowska M.
Hodowla Roślin, Aklimatyzacja i Nasiennictwo
|
1994
|
tom 38
|
nr 5
12

The effect of a dietary herbal extract blend on the performance of broilers challenged with Eimeria oocysts

51%
Arczewska-Wlosek A., Swiatkiewicz S.
Journal of Animal and Feed Sciences
|
2012
|
tom 21
|
nr 1
The aim of the experiment was to evaluate the anticoccidial efficacy of supplementing feeds with herbal extract blend containing garlic (Allium sativum), sage (Salvia officinalis), echinacea (Echinacea purpurea), thyme (Thymus vulgaris) and oregano (Origanum vulgare) extracts in broiler chickens experimentally infected with 170.000 sporulated oocysts of Eimeria acervulina, E. tenella, E. maxima and E. necatrix at 12 days of age. A total of 280 Ross 308 broilers were randomly allocated into 5 groups with 7 replicates of 8 chickens per replicate. The experimental dietary treatments were formulated by supplementing the basal maize-soyabean meal diet. The experimental design allocated the groups as follows: 1. uninfected birds and an unsupplemented diet; 2. uninfected birds and the diet supplemented with the herbal extract blend at a level of 1 g/kg feed (200 mg of each herbal extract/kg); 3. infected birds and an unsupplemented diet; 4. infected birds and a diet with the addition of coccidiostat diclazuril at a level of 1 mg/kg feed; and 5. infected birds and a diet supplemented with the herbal extract blend at a level of 1 g/kg feed (200 mg of each herbal extract/kg). Throughout the 42 days of the experimental period, performance parameters, mortality, lesion score, oocyst output, and serum carotenoid concentration were recorded. Dietary supplementation with the herbal extract blend increased growth performance to the level found in the group fed the coccidiostat and in the non-challenged groups. The number of oocysts per gram of excreta did not differ significantly between the groups fed the herbal extract blend and the group receiving the coccidiostatic supplement. The herbal extract blend had no effect on mortality, lesion score, with the exception of the duodenum, or blood carotenoid concentration.
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