zabih allah abdolmaleki; Manouchehr Souri; mohamad mehdi moeini; armin towhidi; Yadollah Chashnidel
Volume 19, Issue 4 , March 2018, , Pages 829-845
Abstract
Forty multiparous Holstein cows were used to investigate the effect of supplementary rumen protected Conjugated linoleic Acid (CLA) with injectable Se and vitamin E (E-Se) supplement on immune system in Holstein cows and their calve in a commercial dairy farm at Ghazvin province. The animals were divided ...
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Forty multiparous Holstein cows were used to investigate the effect of supplementary rumen protected Conjugated linoleic Acid (CLA) with injectable Se and vitamin E (E-Se) supplement on immune system in Holstein cows and their calve in a commercial dairy farm at Ghazvin province. The animals were divided in four experimental groups in a complete randomize design based on factorial. The experimental groups were: basal diet (Control), basal diet plus injectable E-Se Supplement, basal diet plus CLA 100 g/day per each cow) and basal diet plus CLA 100 g/day per each cow and Injectable E-Se Supplement. The dose of injectable E-Se supplement was 40 ml/cow. The injection has done muscularly in each cow in days, -21, 1, 14, 28 and 42 after calving. Blood Samples of cows collected at days of injection. Blood samples of calves collected at birthday pre feeding colostrum and 7 days after birth. The result showed CLA supplement had no significantly effect on mean concentration of Immunoglobulin G (IgG), Total antioxidant status (TAS) and Malondialdehyde (MDA) in calves on days 1 and 7 (P>0.05). Effect of injectable E-Se Supplement on TAS concentration of Calve's Plasma had was significant (P>.05). CLA and injectable E-Se Supplements had no significant effect on mean concentration of IgG, TAS and MDA of cow`s colostrum (P>0.05). The CLA and E-Se supplements had no significant effect on TAS concentration and hematology Parameters of dairy cow (P>0.05). Based on acquried result use of CLA supplement in transition period had no effect on immune system of cows and their calves. Supplementary injection of E-Se significantly improved total antioxidant status of newborn calves.
Alireza Talebian Masoudi; Mohammad Mahdi Moeini; Manoochehr souri; Hormoz Mansouri; Masume Abdoli
Volume 18, Issue 3 , October 2016, , Pages 399-411
Abstract
The possibility of manufacturing and effects of a slow release non-protein nitrogen product on ruminant nutrition were evaluated in two separate experiments. In first experiment, making of slow release component was followed by connecting branched carbon chain to the molecule of urea to reduce the degree ...
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The possibility of manufacturing and effects of a slow release non-protein nitrogen product on ruminant nutrition were evaluated in two separate experiments. In first experiment, making of slow release component was followed by connecting branched carbon chain to the molecule of urea to reduce the degree of solubility. Then, the sample product was analyzed to assess its chemical structure, and also physical and chemical properties. In second experiment, in an in-vivo study, rumen fermentation characteristics, digestibility of feed, microbial protein production and nitrogen balance of produced compound were evaluated and compared with conventional use of urea and also a diet without non-protein nitrogen source. For this, four rumen fistulated adult sheep were used in change over Latin square experimental design. Infrared and proton magnetic resonance spectroscopy and physical and chemical properties were considered as indicators of the formation of the desired compound. Our data showed that using the slow release product in the diet reduced the nitrogen concentration and altered the amount and ratio of volatile fatty acids as well as pH values in the rumen. Feed intake and digestibility of dry matter, organic matter, NDF and ADF as well as microbial protein production were not affected by the use of slow released product but there were significant differences between diets in relation to the nitrogen digestibility and nitrogen balance (P<0.01). It could be concluded that the slow release product of non-protein nitrogen has the potential to provide urea efficiently and its use in ruminant diets provides safer conditions as compared to the traditional use of urea nitrogen.
Zabihollah Abdolmaleki; manocher souri; Mohammad Mehdi Moeini
Volume 13, Issue 1 , September 2011, , Pages 23-31
Abstract
A total of 16 suckling Merghoz kids, comprising eight male and eight female with birth liveweights of 2.7 ± 0.11 and 2.3 ± 0.16 kg, respectively were used in a 2 × 2 factorial arrangement. The kids were blocked within sex according to their liveweight and randomly allocated to one ...
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A total of 16 suckling Merghoz kids, comprising eight male and eight female with birth liveweights of 2.7 ± 0.11 and 2.3 ± 0.16 kg, respectively were used in a 2 × 2 factorial arrangement. The kids were blocked within sex according to their liveweight and randomly allocated to one of two treatments: ad libitum good quality alfalfa hay in addition to free suckling (control) or ad libitum creep mixture in addition to free suckling and free choice good quality alfalfa hay (creep mixture). Daily feed intake and liveweight changes of all kids were recorded during the study. Skin biopsies and fibre samples were taken every 15 and 28 days, respectively. Average daily dry matter and milk intake by the kids were similar in the four groups. Kids in creep mixture diet showed higher value of average daily gain (P< 0.05). Sex and dietary treatment had no significant effects on secondary follicle density and the S/P ratio in the skin. In contrast, the mean values of both primary and secondary follicular index were significantly different under the influence of sex and dietary treatment (P< 0.05 and P< 0.01). It is concluded that follicular index and growth rate in suckling Merghoz kids were increased due to using creep mixture diet.
Mohammad Mehdi Moeini; Mojgan Azari Torbat; hamid Amanlou
Volume 12, Issue 2 , October 2010, , Pages 51-59
Abstract
15 Holstein cows (1st lactation, 554 ± 57 Kg) randomly divided into three groups. Cows fed Vicia ervilia seed at the rate of 0%, 7% and 14%, DM of dietary, which replaced with Soya been meal and barely. Vicia ervilia (VE) contain approximately: 93.93% DM, 22.8% CP, 5.95% Ash, 3.02% EE, 63% NFE, ...
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15 Holstein cows (1st lactation, 554 ± 57 Kg) randomly divided into three groups. Cows fed Vicia ervilia seed at the rate of 0%, 7% and 14%, DM of dietary, which replaced with Soya been meal and barely. Vicia ervilia (VE) contain approximately: 93.93% DM, 22.8% CP, 5.95% Ash, 3.02% EE, 63% NFE, 5.23% CF, 15.01% NDF and 6.13% ADF. The effective ruminal degradability of CP and DM of VE amounted to 74.76% and 70.57% respectively. Milk production increased in 14% group compared with control (P< 0.05). The values of urea nitrogen in treated cows were significantly increased (P< 0.05). The result of this study indicated that the Vicia ervilia can be used as a protein source replaced with Soya been at the 14% level in dairy cows ration during lactation period after partition.