Effects of feeding probiotic Lactobacillus spp. on growth performances, scours and Escherichia coli shedding in dairy calves

A feeding trial was conducted on 21 crossbred (Local×Friesian, Local×Sahiwal, Sahiwal×Friesian) calves of around one week age for a period of 70 days with the objective of evaluating effects of probiotic on growth performances of calves. Calves were selected and distributed equally into three groups maintaining equal sex ratio in each group, namely the farm practice (FP), control and probiotic groups. The calves were fed on milk as 12% of their live weight up to 14 days and then 10% milk of their live weight up to 70 days of age and wheat bran was supplied to the calves from 50th day at the rate of 250g/calf. The calves of probiotic group werefedaprobiotic mixture containing lactic acid bacteria (LAB) at 0.5 g /d. The data of feed intake and growth for all groups were recorded up to 35 days and then up to 70 days for probiotic and control groups. The calves under probiotic group were achieved 82.8% and 74.5% higher gain (P<0.05) than that of FP and control group, respectively and feed conversion ratio was observed significantly (P<0.05) better in probiotic group (1.83) than that in FP (3.41) and the control group (3.50) up to 35 days of trial. However, no significant differences were found in average live weight gain and feed conversion ratio between probiotic and the control groups (1.99 vs 2.07, respectively) up to 70 days of the trial. Average counts of E. coli were lower in probiotic group than that in the control and FP. The incidence of diarrhoea in probiotic fed group was found 3 and 13 times lower compared to FP and the control group, respectively. Bangladesh J. of Livestock Res. 21-25: 89-102, 2018

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Effects of nano mineral-supplemented diet on pig growth

TAP CHI SINH HOC ◽

10.15625/0866-7160/v42n1.14863 ◽

2020 ◽

Vol 42 (1) ◽

Author(s):

Hoang Nghia Son

Keyword(s):

Mineral Content ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Control Group ◽

Feed Conversion ◽

Control Groups ◽

Mineral Supplementation ◽

And Control ◽

Daily Gain

This paper examined the effects of nano mineral supplementation of diets on the growth of pigs. The total of 180 pigs used for this study were classified into 4 experimental groups and one control group. The results showed that the weight of pigs at the beginning and the end of the experiment was insignificantly different between experimantal and control groups. The same daily gain weight was observed between experimental and control groups. However, the feed conversion ratio (FCR) of four experimental groups I, II, III and IV is 3.00 ± 0.28, 2.95 ± 0.11, 2.85 ± 0.19 and 2.90 ± 0.24, respectively, that were lower than of the control groups, i.e. 3.17 ± 0.42. The mineral content of Fe, Cu, Zn and Mn in liver of pigs in all the experimental groups is lower than that in liver of pigs in the control group. In addition, the amount of Fe and Zn metal in urine and feces of the experimental groups is also lower than in the control group. The results of our study showed that the addition of nano minerals in diets for pigs not only reduced the feed conversion ratio in pigs, also decreased the amount of minerals releasing into the environment.

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Growth performances of broilers hybro G+ provenience

Biotechnology in Animal Husbandry ◽

10.2298/bah1104643l ◽

2011 ◽

Vol 27 (4) ◽

pp. 1643-1648

Author(s):

S. Lilic ◽

D. Sefer ◽

S. Dimitrijevic ◽

T. Ilic ◽

S. Ivanovic ◽

...

Keyword(s):

Weight Gain ◽

Live Weight ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Daily Weight Gain ◽

Feed Consumption ◽

Feed Conversion ◽

Average Daily Weight Gain ◽

Growth Performances ◽

Fattening Period

In this paper are presented the growth performances (live weight, average daily weight gain, feed consumption and feed conversion ratio) of broilers Hybro G+ provenience. Feeding, zoohygienic and zootechnical measures met technological normative for this provenience. Broilers were fed with the complete feed mixtures (producer ?Dren?, Novi Sad) with added anticoccidial salinomycine in the amount of 66 mg/kg up to 35. day of fattening. In last week of the fattening period, salinomycine was not added (drug waiting period is 5 days). Live weight of broilers at the end of trial was 1959.74 g to 2750.48 g (average 2340.62 g). During the fattening period, average daily weight gain was 54.70 ? 5.03 g; it was in the range 45.71-64.39 g. Average daily feed consumption was 87.97 g for all fattening period and feed conversion ratio was 87.97 g.

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The Laetiporus sulphureus Fermented Product Enhances the Antioxidant Status, Intestinal Tight Junction, and Morphology of Broiler Chickens

Animals ◽

10.3390/ani11010149 ◽

2021 ◽

Vol 11 (1) ◽

pp. 149

Author(s):

Wei Chih Lin ◽

Tzu Tai Lee

Keyword(s):

Mrna Expression ◽

Broiler Chickens ◽

Basal Diet ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Intestinal Morphology ◽

Feed Conversion ◽

Control Groups ◽

Fermented Product ◽

And Control

The Laetiporus sp. is a fungal species that is traditionally used for medicinal purposes. This study investigated the effects of the Laetiporus sulphureus fermented product (FL) as a feed supplementation on the antioxidant activities, the intestinal Tight Junction (TJ) mRNA expression, and the intestinal morphology of broiler chickens. Four-hundred one-day-old male broilers (Ross 308) were randomly allocated to five experimental diets: (1) a corn-soybean meal basal diet (control), (2) a basal diet replaced with 5% Wheat Bran (5% WB), (3) a basal diet replaced with 10% WB (10% WB), (4) a basal diet replaced with 5% FL (5% FL), and (5) a basal diet replaced with 10% FL (10% FL). The FL-supplemented groups exhibited a better feed conversion ratio in the overall experimental period compared to the WB and control groups. The serum antioxidant profiles of 35-day-old broilers showed that, compared to the control and 10% WB groups, the 5% FL supplementation group had a significantly increased superoxide dismutase activity, while it down-regulated the concentration of malondialdehyde in the serum (p < 0.05). The assessment of selected antioxidant gene expression showed that the 5% FL group significantly elevated heme oxygenase-1 and nuclear factor erythroid 2–related factor 2 expression, compared to the control and WB groups (p < 0.05). Furthermore, both of the FL supplemented groups had a significantly higher expression of glutathione peroxidase and catalase, compared to that of the WB and control groups in the jejunum (p < 0.05). The TJ mRNA expression in the jejunum showed that 5% FL significantly elevated the zonula occludens-1, claudin-1, and mucin-2 expression (p < 0.05), while 5% and 10% FL supplementation significantly improved OCLN expression in both the jejunum and ileum, compared to control group (p < 0.05). The intestinal morphology of 35-day-old broilers showed that a 5% FL supplementation significantly increased the villus height in the ileum and jejunum, compared to the WB and control groups (p < 0.05). Moreover, the 5% and 10% FL supplementation groups had a significantly higher villi:crypt ratio in the ileum, compared to the WB and control groups (p < 0.05). To conclude, FL supplementation improved the antioxidative status, the TJ mRNA expression, and the intestinal morphology, and it was accompanied by a lowered feed conversion ratio in broilers. Finally, 5% supplementation had the overall best results in improving the antioxidant status, TJ mRNA expression, and intestinal morphology of broilers.

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Performance of growing pigs and finisher broilers housed together

Nigerian Journal of Animal Production ◽

10.51791/njap.v31i1.1453 ◽

2021 ◽

Vol 31 (1) ◽

pp. 40-44

Author(s):

H. O. Obikaonu ◽

A. B. I. Udedibie

Keyword(s):

Growth Rate ◽

Body Weight ◽

Production Systems ◽

Live Weight ◽

Conversion Ratio ◽

Growing Pigs ◽

Feed Conversion Ratio ◽

Control Group ◽

Feed Conversion ◽

Ad Libitum

Growth performance and cost of feeding young growing pigs and finisher broilers under integrated broiler pig production system were investigated. Four young growing pigs (the control) were housed in pen A and fed B of their body weight as commercial growers feed. Another 4 were housed in pen B with broilers in cages placed above them and given 2% of their body weight as commercial growers feed and allowed to make up with droppings from the broilers above. Another 4 were housed without broilers in pen C and given 2% of their body weight as commercial growers feed and droppings collected from broilers housed without pigs in pen D. Each pig within a treatment was tagged and regarded as a replicate. The broilers were put in the cages at week 5 and given broiler finisher feed ad libitum. They were removed at 9 weeks of age and replaced with another batch similarly raised, a process that was repeated 3 times in the 12-week trial. The growth rate of the pigs of the control group was statistically similar to that of the group housed with broilers (P>0.05) bur significantly (P<0.05) higher than that of the group housed without broilers. There were no significant differences (P>0.05) in the feed intake, growth rate and feed conversion ratio of the broilers housed with pigs and those housed without pigs. Cost analysis of the production systems showed that N104.00 was spent on feed to produce 1.0kg live weight of pigs in the control group and N65.00 for the other two groups.

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Effects in bacon pigs of differing levels of nutrition to 20 kg. body weight

Animal Science ◽

10.1017/s0003356100022091 ◽

1964 ◽

Vol 6 (3) ◽

pp. 301-308 ◽

Cited By ~ 20

Author(s):

Henning E. Nielsen

Keyword(s):

Body Weight ◽

Average Daily Gain ◽

Live Weight ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Eye Muscle ◽

Group 4 ◽

Second Period ◽

Daily Gain

Sixteen blocks of eight littermate pigs were weaned at 3 weeks of age and each divided into four groups. Various levels of nutrition were applied to the pigs so that the four groups reached 20 kg. at 59, 68, 80 and 91 days of age, respectively.Only small differences were observed between groups in feed conversion ratio to 20 kg.; however, Group 4 required more feed per kg. gain than the three other groups.During the second period (20–90 kg.) the pigs in each group were divided into two sub-groups, which were on a high and a low plane of nutrition respectively. In both sub-groups the type of feeding before 20 kg. influenced the average daily gain and feed conversion ratio. The older the pigs were at 20 kg. the higher the daily gain and the lower the feed conversion ratio in the following period. There was an increase in daily feed intake with increased age at 20 kg. for pigs fed ad lib. during the second period.An increase in age at 20 kg. caused a significant decrease in thickness of backfat, a greater area of eye muscle and a smaller area of fat overlying muscle. For pigs fed ad lib. the area of eye muscle was significantly increased by a higher age at 20 kg. live-weight.

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Effect of age on feed efficiency and carcass yield characteristics of indigenous bull

Bangladesh Journal of Animal Science ◽

10.3329/bjas.v46i1.32171 ◽

2017 ◽

Vol 46 (1) ◽

pp. 17-23 ◽

Cited By ~ 1

Author(s):

N Sultana ◽

KS Huque ◽

MZ Rahman ◽

NG Das

Keyword(s):

Age Groups ◽

Live Weight ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Carcass Yield ◽

Concentrate Mixture ◽

Retail Cuts ◽

Daily Gain ◽

Effect Of Age

The study was conducted with the objectives to understand the effect of age of native Pabna bulls on feed conversion ratio (FCR), digestibility and carcass yield characteristics. Fifteen Pabna bulls having five in each age groups of 6 to12, 13 to 24 and 25 to 36 months were fed ad libitum mix silages of Splendida (Setaria splendida) and Andrpogan (Andropogon gyunus) grasses (1:1 fresh) and supplemented with a concentrate mixture at 1% of live weight (LW) for a period of 72 days. With the increase of age, and subsequently LW (initial LW: 98.2, 182.6 and 288 kg, respectively), there was significant decrease in dry matter (DM) intake as % LW (<0.05; 2.94, 2.61 and 2.36, respectively) and increased daily gain (<0.01; 294, 519 and 597 g/d, respectively). However, the feed conversion ratio (FCR) (>0.05; 10.88, 10.10 and 12.24, respectively) and DM digestibility (>0.05; 51.0, 48.1 and 49.1 %, respectively) of bulls were remained unchanged. In case of carcass yield characteristics, significantly lower yield grade (<0.01; 1.79, 1.27 and 0.20, respectively) of bulls of 25 to 36 years produced higher closely trimmed boneless retail cuts (CTBRC) (<0.01; 50.47, 51.64 and 54.14 %, respectively), retail cut (<0.01; 76.14, 78.55 and 83.48 %, respectively) and meat quality index (MQI) (<0.01; 67.28, 67.89 and 69.07, respectively) compared to younger bulls. It may, therefore, be recommended that beef cattle farming with native Pabna bulls of 24 to 36 months will give more daily LW gain and produce more CTBRC at a similar FCR compared to younger ones.Bang. J. Anim. Sci. 2017. 46 (1): 17-23

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Growth performance and fattening ability in castrated male and female East Balkan pigs reared organically in Strandzha mountain

Archiva Zootechnica ◽

10.2478/azibna-2020-0005 ◽

2020 ◽

Vol 23 (1) ◽

pp. 44-54

Author(s):

Nadezhda Palova ◽

Jivko Nakev ◽

Teodora Popova ◽

Maya Ignatova

Keyword(s):

Growth Performance ◽

Average Daily Gain ◽

Live Weight ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Daily Weight Gain ◽

Feed Conversion ◽

Average Daily Weight Gain ◽

The Difference ◽

Daily Gain

Abstract(An experiment with two groups of East Balkan pigs – castrated males (n=10) and females (n=10), was carried out to study the growth performance and fattening abilities of the animals from the weaning until slaughter. The pigs were included in the trial at 60 day age. The average live weight of the castrated males was 8. 65±1.08 kg and for the females, 8.5±0.62 kg.The pigs were reared using traditional technology, grazing on natural pastures in the Strandzha mountain, Bulgaria. In autumn, acorns were naturally present in their diet. According to the category, the animals additionally received ground organic feed (50% barley and 50% wheat). The trial lasted 304 days (from February to November, 2019). During this period the final live weight of the male castrated pigs reached 88.00 kg while that of the females was 84.4 kg. The difference, however, was not significant. Furthermore, no significant differences in the growth performance characteristics that could be attributed to the sex of the animals were observed. The average daily gain of both sexes tended to be lower in summer and higher in autumn. The feed conversion ratio was higher in summer. The animals showed high average daily weight gain at pasture when their live weight was over 50 kg.

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The use of amaranth (genus AmaranthusL.) in the diets for broiler chickens

Veterinární Medicína ◽

10.17221/5560-vetmed ◽

2012 ◽

Vol 51 (No. 7) ◽

pp. 399-407 ◽

Cited By ~ 8

Author(s):

B. Pisarikova ◽

Z. Zraly ◽

S. Kracmar ◽

M. Trckova ◽

I. Herzig

Keyword(s):

Broiler Chickens ◽

Live Weight ◽

Control Group ◽

Feed Conversion ◽

Feeding Trial ◽

Control Groups ◽

Broiler Performance ◽

Amaranth Grain ◽

Percentage Yield ◽

Experimental Group

The objective of our study was to test amaranth grain or dried biomass in the diet for broiler chickens as a resource of protein replacing animal protein. Further, the effect of amaranth on broiler performance, carcass characteristics and meat quality were assessed in a feeding trial. The experimental groups of broilers were fed feed mixtures with crude amaranth grain (AC), heat processed amaranth grain (AP) or dried above-ground biomass (AB). Control groups (C) received the diet containing animal proteins. The results obtained in the experimental groups of broiler chickens can be compared to the control group in all the production indicators under investigation. On day 42 of the experiment, live weight (g) of female broilers ranged from 2 205.1 ± 152.5 (AP) to 2 254.0 ± 136.5 (C), and that of male broilers from 2 375.1 ± 233.0 (AC) to 2 506.0 ± 286.0 (C). Feed conversion ranged from 1.80 kg in control group of male broiler chickens to 1.91 kg in experimental group of male broilers (AB). Percentage yield in female broiler chickens ranged from 70.8 ± 1.74 (AB) to 72.4 ±3.34(AC) or 72.4 ± 1.98 (C), and in male broilers from 72.8 ±3.55(AP) to 75.1 ±2.44(AB). Our results showed that amaranth can fully replace meat-and-bone meals in the diets for broiler chickens.

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Effects of dietary selenium-yeast concentrations on growth performance and carcass composition of ducks

Animal Production Science ◽

10.1071/an16126 ◽

2017 ◽

Vol 57 (8) ◽

pp. 1731 ◽

Cited By ~ 5

Author(s):

Milan Ž. Baltić ◽

Marija Dokmanović Starčević ◽

Meho Bašić ◽

Amir Zenunović ◽

Jelena Ivanović ◽

...

Keyword(s):

Weight Gain ◽

Growth Performance ◽

Subcutaneous Fat ◽

Conversion Ratio ◽

Carcass Composition ◽

Feed Conversion Ratio ◽

Daily Weight Gain ◽

Control Group ◽

Feed Conversion ◽

Dressing Percentage

The aim of the present study was to assess effects of selenium (Se)-yeast diet supplementation on performance and carcass composition in ducks. The study was performed on 240 1-day old ducklings of the same origin (Cherry Valley hybrid), during a 49-day period, which were fed diets supplemented with the following four different levels of Se yeast (ALKOSEL® R397): groups with Se at 0 mg/kg of the diet as-fed, 0.2 mg/kg, 0.4 mg/kg and 0.6 mg/kg. Growth performance (bodyweight, daily weight gain, daily feed intake, feed-conversion ratio) and carcass characteristics (hot and cold carcass weight, chilling losses, dressing percentage, carcass cut yields, and percentage of tissues in breast and thighs with drumsticks) of the ducks were determined. Animals fed high-Se diets (0.4 mg/kg) had higher (P < 0.05) final bodyweight and daily weight gain (from 15 to 49 days) compared with those fed diets with inadequate (0 mg/kg) or with supranutritional (0.6 mg/kg) Se levels. Ducks fed only with basal diet showed a higher (P < 0.05) feed-conversion ratio (from 15 to 49 days) compared with those supplemented with Se at 0.4 mg/kg and 0.6 mg/kg. Dressing percentage was higher (P < 0.01) in the control group (69.50%) than in the group with Se added at 0.6 mg/kg (66.85%). The weights of basic cuts from the duck carcasses did not significantly differ among compared groups. Moreover, the percentage of skin with subcutaneous fat in breast and thighs with drumsticks increased in Se-supplemented groups compared with the control group, while the opposite was determined with the percentage of muscle. It was concluded that a diet containing 0.4 mg of added Se per kilogram produced the greatest growth-performance results in ducks.

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Moist barley for growing pigs: some effects of storage method and processing

Animal Science ◽

10.1017/s0003356100010746 ◽

1971 ◽

Vol 13 (3) ◽

pp. 547-556 ◽

Cited By ~ 14

Author(s):

R. M. Livingstone ◽

H. Denerley ◽

C. S. Stewart ◽

F. W. H. Elsley

Keyword(s):

Propionic Acid ◽

Dry Matter ◽

Live Weight ◽

Conversion Ratio ◽

Growing Pigs ◽

Feed Conversion Ratio ◽

Apparent Digestibility ◽

Feed Conversion ◽

Bacterial Development ◽

Feeding Value

SUMMARYForty-eight pigs were used to compare the feeding value of barley which had been stored dry, and then hammer-milled, with that of barley stored moist, either anaerobically or treated with 1·3% propionic acid, and then rolled. The pigs were fed from 30 kg live weight for a period of 11 weeks and during this period all consumed the same allowance of dry matter. The growth rate and feed conversion ratio of the pigs given the rolled moist barley were significantly poorer than those of others given dry milled or acid treated rolled barley. There were no treatment differences in carcass attributes.Microbiological counts made throughout the experiment showed that there was no significant fungal or bacterial development on the acid treated barley. Similar numbers of bacteria were present on the dry barley as on the moist, but the fungal count for the moist grain was always at least 500 times higher than that of the corresponding dry sample. The dominant organisms were identified.In a further experiment the apparent digestibility of dry matter and nitrogen of diets containing dry, moist or propionic acid treated barley, processed either by milling or rolling, were determined. The highest values were obtained for dry barley. Acid treated moist barley had lower values than moist barley. The method of processing did not affect the apparent digestibility of the dry matter, but that of the N was significantly lower for the rolled barleys.

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