Dietary supplementation with selenium and vitamin E improves milk yield, composition and rheological properties of dairy Jonica goats

2011 ◽  
Vol 78 (2) ◽  
pp. 144-148 ◽  
Author(s):  
Vincenzo Tufarelli ◽  
Vito Laudadio

The objective of this study was to evaluate the effect of dietary supplementation with selenium (Se) and vitamin E (VitE) on milk yield, composition and renneting parameters in dairy Jonica breed goats. Forty multiparous lactating goats fed the same basal diet were randomly allocated to 1 of 2 dietary treatments: for 135 days, the experimental period. Basal diet was composed by ad libitum mixed vetch-oat hay and a definite amount of a pelleted concentrate. Dietary treatments included: (1) the control diet containing background Se and VitE only, and (2) the experimental diet containing sodium selenite as the Se supplement in concentrate (0·20 mg/head per day of Na-selenite and 20 mg/day per head of VitE). During the trial, no significant differences (P>0·05) were registered in dry matter intake and body weight gain among groups. Goats fed Se-VitE diet showed the highest milk production (P<0·05), and fat (P<0·01) and protein (P<0·05) yields and percentages. Somatic cell count were significantly lower in Se-VitE diet compared with control group (P<0·05). Significant differences (P<0·05) were observed in milk renneting properties. Based on our results, it was concluded that dietary supplementation with SE and VitE led to an increase of milk production and quality in Jonica goat, with positively improvement in milk coagulation aptitude.

2016 ◽  
Vol 16 (2) ◽  
pp. 489-505 ◽  
Author(s):  
Mahmoud Alagawany ◽  
Elwy Ali Ashour ◽  
Fayez Mohamed Reda

Abstract This study was performed to investigate the effects of dietary supplementation with garlic and turmeric powder as growth promoter agents on performance, carcass traits, serum biochemistry, and antioxidant enzyme activities of growing rabbits. A total of 112 New Zealand White rabbits (NZW) at 5 weeks of age were randomly assigned to seven treatments with four replicates. The dietary treatments consisted of 7 groups as follows; the basal diet as control, phytogenic additives groups were supplemented with 2, 4, and 6 g/kg garlic or turmeric powder added to the basal diet. There were no linear and quadratic differences (P<0.05) in growth performance after garlic or turmeric supplementation at all studied ages. Compared with the control group, supplementation of diets with garlic or turmeric linearly and quadratically elevated immunity biomarkers such as total protein (TP), albumin (AL) and immunoglobulin (IgG) levels and decreased (linearly and quadratically, P<0.05) aspartate aminotransferase (AST), alanine aminotransferase (ALT ), triglyceride (TG) and total cholesterol (TC) levels in rabbit serum. However, TP, AL, globulin (GL), IgG and IgM levels were linearly and quadratically enhanced with increasing turmeric levels versus the control diet. Hepatic superoxide dismutase (SOD), catalase (CAT ) and glutathione peroxidase GSH-Px activities as well as reduced glutathione (GSH) concentrations were linearly and quadratically (P<0.05) improved in garlic or turmeric additives fed groups. While MDA concentration was statistically (linearly, P= 0.022) reduced in comparison with the control group. It could be concluded that garlic or turmeric supplementation (2, 4 and 6 g/kg) did not linearly and quadratically affect growth performance but improved the immunity responses and lowered the lipid profile in blood and lipid peroxidation in liver and increased hepatic antioxidant activity in treated rabbits.


Author(s):  
Aashaq Hussain Dar ◽  
S. K. Singh ◽  
Sanjay Kumar ◽  
Irshad Ahmad Para ◽  
K. Merina Devi ◽  
...  

A study was conducted on 24 fifteen day old crossbred calves that were divided into 4 groups of 6 calves each. The calves were fed different dietary treatments viz T0 (control group) - basal diet, T1 (probiotic group) - basal diet + Lactobacillus acidophilus @ 1 g/calf/day (2 x 1010 cfu/ g), T2 (prebiotic group)- basal diet + Mannan oligosaccharide (MOS) @ 4 g per calf/day and T3 (synbiotic group) basal diet + Lactobacillus acidophilus @ 0.5 gm (2 x 1010 cfu/ g) + 2 g MOS per calf/day respectively for a period of 90 days. Blood samples were taken at monthly interval and serum was separated to estimate different biochemical parameters. The results of study indicated that probiotic (Lactobacillus acidophilus), prebiotic (MOS) and synbiotic supplementation were effective in reduction of serum cholesterol and triglycerides at 60th and 90th day. Serum creatinine, glucose, urea and bilirubin were unaffected by dietary supplementation of probiotic, prebiotic (MOS) and synbiotic. There was no effect of T1, T2 and T3 supplementation on Serum enzymes, Aspartate aminotransferase (AST) and Alanine Amino Transferase (ALT).


1998 ◽  
Vol 38 (2) ◽  
pp. 117 ◽  
Author(s):  
P. J. Moate ◽  
D. E. Dalley ◽  
K. Martin ◽  
C. Grainger

Summary. Recently, many dairy farmers in Victoria have grown turnips as a summer fodder crop for lactating dairy cows. This paper reports on a 1 month experiment in which cows were individually fed indoors, and milk yield responses to feeding combinations of turnips and barley were measured. Forty cows in mid lactation were evenly allocated to 5 treatment groups. The control group were offered a basal diet of pasture hay and pasture silage which is similar to that available on many Victorian dairy farms during summer. Cows in the other 4 groups were offered the basal diet and various combinations of turnips and/or barley. Marginal milk responses from barley, turnips and a 50 : 50 mixture of turnips and barley were 0.62, 0.49 and 0.59 L/kg dry matter of supplement eaten. Milk composition of all groups was similar. Despite diets differing greatly in the proportions and physical form of dietary constituents, the mean milk production of each group was accurately predicted by their mean dry matter intake. Measurement of plasma minerals (calcium, magnesium, sodium, potassium and phosphorus) and rumen fluid pH showed that dietary treatments caused some significant (P<0.05) differences but all values were within the normal range. In this experiment, the milk production responses from barley, turnips and combinations of barley and turnips were similar. Since the cost of turnips is generally about half that of barley, it is concluded that turnips are an economic alternative to barley as a feed supplement for summer milk production.


2006 ◽  
Vol 76 (6) ◽  
pp. 353-358 ◽  
Author(s):  
Wang ◽  
Zhu ◽  
Guo ◽  
Zhang ◽  
Jia

This experiment was conducted to investigate the influence of different dietary levels of zinc (Zn) on performance, vitamin B12, and blood parameters in lambs. Thirty six cannulated Poll Dorset × Small-tailed Han wether lambs were assigned randomly to four treatment groups: The control group, which was supplemented with 0.30 mg Co/kg dry matter (DM) to the basal diet; and the low-, medium- and high-Zn supplemented groups, supplementation of 50, 100, and 150 mg Zn/kg DM to the control diet, respectively. Lambs were housed in individual pens and the experiment lasted for 70 days. There was no significant difference in body weight gain and feed/gain between different treatment groups. The high-Zn supplemented lambs showed lower vitamin B12 concentrations in both ruminal fluid and plasma, and higher methylmalonic acid and homocysteine concentrations in plasma compared with the control and low-Zn supplemented groups (p < 0.05). No significant difference was observed in these biochemical values between the control, the low-, and the medium-Zn supplemented groups (p > 0.05). Plasma folate concentration, glucose, and heme-dependent blood parameters were not influenced by dietary zinc level. It was concluded that the higher level of zinc supplementation had a negative effect on vitamin B12 in lambs. Higher inclusion level of dietary zinc could inhibit vitamin B12 synthesis in the rumen of lambs.


2001 ◽  
Vol 72 (3) ◽  
pp. 477-482 ◽  
Author(s):  
S. Y. Shiau ◽  
P. S. Lo

AbstractA feeding trial was conducted to determine the dietary choline requirement of juvenile grass shrimp, Penaeus monodon. Purified basal diets were formulated using vitamin-free casein (containing 370 mg choline per kg) as the protein source. Graded levels (0, 300, 600, 1000, 2000, 4000, 7000, and 10 000 mg choline per kg diet) of choline chloride were added to the basal diet, resulting in eight dietary treatments in the experiment. Each diet was given to three replicate groups of shrimp initially averaging 1·18 (s.d. 0·01) g for 8 weeks. Weight gain was highest in shrimp given the diets supplemented with 7000 and 4000 mg choline per kg diet, followed by the groups given 2000 mg/kg, then 1000 and 600 mg/kg, and finally 300 mg/kg and the unsupplemented control group (P < 0·05). Shrimp given diets supplemented with 7000 and 4000 mg choline per kg diet had significantly higher food efficiency and survival than those given diet with 300 mg choline per kg or the control diet. Higher body crude protein and choline concentrations were recorded in shrimp given diets supplemented with 4000 and 7000 mg choline per kg diet than shrimp given diets with ≤600 mg choline/kg and ≤2000 mg choline per kg, respectively. Analysis by polynomial regression of weight gain and body choline concentration for P. monodon gave a maximum at about 6000 mg/kg. Taking into account the choline concentration of the unsupplemented basal diet, the optimal dietary choline requirement for growing P. monodon is about 6200 mg/kg.


Animals ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 117 ◽  
Author(s):  
Mehdi Qorbanpour ◽  
Taha Fahim ◽  
Faramin Javandel ◽  
Mehran Nosrati ◽  
Erwin Paz ◽  
...  

A total of 225 day-old male broiler chicks (Ross-308) were randomly allocated to five treatment groups, with three replicates in a completely randomized design for 42 days. Birds were fed a basal-diet supplemented with: no additive (control-diet), multi-strain probiotic (Lactobacillus acidophilus, Lactobacillus casei, Enterococcus faecium and Bifidobacterium thermophilum), or 0.15, 0.20 and 0.25% ginger (Z. officinale) powder, respectively. The results show no significant differences among treatments for growth traits and carcass characteristics, whereas using probiotics and ginger at all levels resulted in a significant decrease of gizzard weight and abdominal fat compared to the control group. Dietary treatments did not affect blood biochemistry and antibody production against sheep red blood cells (SRBC), IgG and IgM; however, antibody titre was higher in birds fed 0.25% ginger than other diets after 7 days post injection. The Lactobacillus counts in ileal content of birds fed 0.20 and 0.25% ginger were higher compared to the other treatments. In conclusion, dietary supplementation with either ginger or probiotics showed a significant influence on birds’ immune response, probably because ginger had strong antioxidant activity and the probiotics stimulated the production of natural antibodies.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 365-366
Author(s):  
Naren Gaowa ◽  
Erdan Wang ◽  
Shengli Li ◽  
Zhijun Cao ◽  
Yachun Wang ◽  
...  

Abstract The dairy cows decrease dry mater intake (DMI) before calving and are frequently in negative energy balance after calving. The objective of this study was to investigate the effect of rumen-protected niacin (NA) on DMI, rumination, and milk production in multiparous Holstein dairy cows during transition period. Eighteen multiparous Holstein dairy cows were allocated into 3 groups: (1) control diet (Con; n = 6), not supplemented with NA, (2) supplemented diet 1 (NA1; supplemented with 20 g NA/cow daily, n = 6), and (3) supplemented diet 2 (NA2; supplemented with 40 g NA/cow daily, n = 6). Experimental stage was from 49 d before calving until 21 d after calving. Daily TMR intake was monitored by Roughage Intake Control System, and daily rumination time was monitored by Hr-Tag rumination monitoring system and milk yield was recorded every day after calving. Blood samples were collected on d -49, -35, -21, -14, -7, 1, 3, 7, 14, 21, and 28 relative to parturition for quantifying concentrations of neuropeptide Y (NPY) and orexin A (OXA). The 20 g/day NA feeding increased DMI during transition period (P &lt; 0.05). The concentrations of NPY and OXA, which are the intake related hormones, were significant higher in NA1 than the other two groups in the first two weeks after calving (P &lt; 0.05). Moreover, the daily rumination time in NA1 was significantly higher than the control group from two weeks before calving to the first week after calving (P &lt; 0.01). The 20 g/day NA feeding significantly increased milk yield (P &lt; 0.05) compared to control group in early lactation. Overall, our study demonstrated that 20 g/day NA feeding could improve DMI and production in fresh cows, while those improvements were not detected with 40 g/day NA feeding.


2021 ◽  
Vol 20 (04) ◽  
pp. 17-23
Author(s):  
Khang T. K. Nguyen

The objective of this study was to evaluate the effects of dietary supplementation of vitamin E on reproductive performance of Japanese (JP) laying quails from 49 - 132 days of age. A total of 40 JP quails of 49 days of age were randomly assigned to 1 of 4 dietary treatments and there were 10 replicate cages per treatment with each JP quail per replicate. The experimental diets were as follows: (1) the control was a basal diet without vitamin E supplementation (KPCS); (2) E75 consisted of KPCS supplemented with 75 mg vitamin E per kg of feed; (3) E100 consisted of KPCS supplemented with 100 mg vitamin E per kg feed, and (4) E125 consisted of KPCS supplemented with 125 mg vitamin E per kg of feed. The experiment was carried out for 12 weeks from December 23th, 2019 to March 15th, 2020. The results showed that from 105-132 days of age, the laying rate and egg weight of the E100 (93.57% and 11.42 g), control (90% and 11.58 g) and E75 (89.29% and 11.39 g) were significantly higher (P < 0.05) than those of the E125 (79.44% and 10.04 g), respectively. There were no significant differences among treatments in feed consumption and feed conversion ratio (P > 0.05). Egg parameters such as eggshell weight and its percentage, albumin percentage and eggshell thickness were significantly different among treatments (P < 0.05). Briefly, it is suggested that either 75 mg or 100 mg of vitamin E should be added to the feed to improve the egg performance of JP quails.


2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 80-81
Author(s):  
Lori L Thomas ◽  
Ashley Hartman ◽  
Jason C Woodworth ◽  
Mike D Tokach ◽  
Robert D Goodband ◽  
...  

Abstract A total of 360 pigs (DNA 400×200, initial BW=6.8 kg) were used a 35-d trial to evaluate the effects of adding MCFA and monolaurin blends to the diet on growth performance of nursery pigs. Pens of pigs were blocked by BW and randomized to 1 of 6 dietary treatments (12 pens per treatment). Treatments consisted of a basal diet containing no MCFA (control), the control diet with 1.0% added MCFA (a 1:1:1 blend of C6, C8, and C10; Sigma Aldrich, St. Louis, MO), or a 1.0% inclusion of 4 different blends of MCFA, lactic acid, and monolaurin (1, 2, 3, and 4). The 4 blends consisted of 50% C6, 20% lactic acid and increasing levels of monolaurin (0, 10, 20, and 30%) at the expense of C12 (30, 20, 10, and 0%). Data were analyzed as a randomized complete block design with pen as the experimental unit. From d 0 to 14, pigs fed the 1.0% 1:1:1 MCFA blend had increased (P = 0.037) ADG compared to the control group. Pigs fed the 1.0% 1:1:1 MCFA blend and the mean of the 4 blends of MCFA, lactic acid, and monolaurin had improved (P < 0.037) G:F compared with pigs fed the control diet. From d 14 to 35, ADFI and subsequently ADG increased (P < 0.057) for pigs fed the 1.0% 1:1:1 MCFA blend compared with the control group. Overall, pigs fed the 1.0% 1:1:1 MCFA blend had increased (P < 0.034) ADFI and ADG, resulting in 0.9 kg greater final BW (P = 0.014) compared with the control group. There was no evidence for differences between the mean of pigs fed blends of MCFA, lactic acid, and monolaurin compared with the control. In summary, the addition of a 1.0% 1:1:1 MCFA blend resulted in improved ADG, ADFI, and G:F compared with pigs fed a control diet.


2020 ◽  
Vol 7 ◽  
Author(s):  
Xupeng Yuan ◽  
Jiahao Yan ◽  
Ruizhi Hu ◽  
Yanli Li ◽  
Ying Wang ◽  
...  

Recent evidences suggest that gut microbiota plays an important role in regulating physiological and metabolic activities of pregnant sows, and β-carotene has a potentially positive effect on reproduction, but the impact of β-carotene on gut microbiota in pregnant sows remains unknown. This study aimed to explore the effect and mechanisms of β-carotene on the reproductive performance of sows from the aspect of gut microbiota. A total of 48 hybrid pregnant sows (Landrace × Yorkshire) with similar parity were randomly allocated into three groups (n = 16) and fed with a basal diet or a diet containing 30 or 90 mg/kg of β-carotene from day 90 of gestation until parturition. Dietary supplementation of 30 or 90 mg/kg β-carotene increased the number of live birth to 11.82 ± 1.54 and 12.29 ± 2.09, respectively, while the control group was 11.00 ± 1.41 (P = 0.201). Moreover, β-carotene increased significantly the serum nitric oxide (NO) level and glutathione peroxidase (GSH-Px) activity (P &lt; 0.05). Characterization of fecal microbiota revealed that 90 mg/kg β-carotene increased the diversity of the gut flora (P &lt; 0.05). In particular, β-carotene decreased the relative abundance of Firmicutes including Lachnospiraceae AC2044 group, Lachnospiraceae NK4B4 group and Ruminococcaceae UCG-008, but enriched Proteobacteria including Bilophila and Sutterella, and Actinobacteria including Corynebacterium and Corynebacterium 1 which are related to NO synthesis. These data demonstrated that dietary supplementation of β-carotene may increase antioxidant enzyme activity and NO, an important vasodilator to promote the neonatal blood circulation, through regulating gut microbiota in sows.


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