Effect of Fresh Citrus Pulp Supplementation on Animal Performance and Meat Quality of Feedlot Steers

The use of fruit by-products such as citrus pulp represents a feeding ingredient that deserves to be evaluated as an energy source in animal rations. Thirty-six British breed steers were allotted to one of the three feeding treatments (12 steers/treatment): 0%, 15% and 30% of fresh citrus pulp inclusion in the ration in a randomized complete block design to evaluate animal performance and carcass and meat quality traits. In the present study, the inclusion of fresh citrus pulp up to 30% of the diet did not affect the animal average daily gain (p > 0.05) but steers that were fed the pulp consumed less feed (p < 0.05) and presented a lower feed conversion ratio (p < 0.05) than their counterparts without citrus pulp in their diet. No effect of fresh citrus pulp was observed on carcass and meat quality (p > 0.05). A greater lipophilic antioxidant capacity (p < 0.05) in meat was observed when fresh citrus pulp was offered at 15% of the diet. Fresh citrus pulp used up to 30% as a feed ingredient in feedlot rations does not negatively affect animal performance or meat quality but, rather, has a positive effect on dry matter intake and a better feed conversion ratio.

Download Full-text

Decorticated safflower meal as a protein supplement in diets fed either restrictively or ad libitum to barrow and gilt pigs over 45 kg liveweight

Australian Journal of Experimental Agriculture ◽

10.1071/ea9740012 ◽

1974 ◽

Vol 14 (66) ◽

pp. 12 ◽

Cited By ~ 6

Author(s):

KC Williams ◽

PK O'Rourke

Keyword(s):

Soybean Meal ◽

Average Daily Gain ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Large White ◽

Protein Supplements ◽

Ad Libitum ◽

Daily Gain

Twenty barrow and twenty gilt Berkshire x Large White pigs were fed barley based diets containing protein supplements of either 13 per cent soybean meal, 9 per cent fishmeal, 14.5 per cent safflower meal plus 0.2 per cent I-lysine mono hydrochloride plus 0.1 per cent methionine or 14.5 per cent safflower meal plus 4.5 per cent fishmeal from 46.4 to 87.0 kg liveweight. All diets were fed individually at a restricted feeding scale. The safflower meal diets were also fed ad libitum. Barrows and gilts fed ad libitum recorded a 65 and 27 per cent improvement respectively in average daily gain and had slightly fatter carcases than those fed comparable diets restrictively. Feed conversion ratio was not significantly affected by level of feeding. Growth and carcase attributes of pigs fed diets restrictively were similar apart from the feed conversion ratio of pigs fed the amino acid supplemented safflower meal diet, which was inferior (P < 0.05) to those fed the soybean meal supplemented diets. Barrows grew faster and produced fatter carcases than gilts, A significant sex x diet interaction occurred from which it was concluded that gilts, but not barrows, could be fed ad libitum without detriment to the quality of the carcase.

Download Full-text

Ducks’ Growth, Meat Quality, Bone Strength, and Jejunum Strength Depend on Zeolite in Feed and Long-Term Factors

Animals ◽

10.3390/ani11041015 ◽

2021 ◽

Vol 11 (4) ◽

pp. 1015

Author(s):

Jakub Biesek ◽

Mirosław Banaszak ◽

Marek Adamski

Keyword(s):

Body Weight ◽

Meat Quality ◽

Body Weight Gain ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Water Holding Capacity ◽

Feed Conversion ◽

Water Holding

The safety of production and the high quality of meat are important aspects of rearing poultry, especially when natural solutions are used. Because of the increasing popularity of duck meat, the aim of the present study was to assess the effect of a diet with an inclusion of zeolite on the growth performance, meat quality, and strength of the bones and jejunum in ducks of different origin, sex, and age at slaughter. The study was conducted on 320 Orvia and Cherry Valley ducks. Birds were allocated to eight groups, according to their sex and origin. Half of the birds received feed with a 4% inclusion of zeolite. Body weight gain, feed intake, and feed conversion ratio per kilogram of gain were calculated. After six or seven weeks, five birds from each group were selected and slaughtered. After dissection, meat quality (pH, water-holding capacity, colour) and the strength of the bones and gut were analysed. The analysis revealed that zeolite was associated with reduced body weight gains and increased feed conversion ratio, but with a higher water-holding capacity of breast muscles in seven-week-old ducks, and with a higher yellowness and water-holding capacity of leg muscles in six-week-old ducks. A positive effect of long-term factors (age, sex, origin) and the interaction with zeolite was found for most of the analysed traits. Findings on the effect of 4% inclusion of zeolite in duck diet were inconclusive. The study implies the need for further research, since zeolite has potential as a natural sanitizing agent and can improve the quality of produced duck meat.

Download Full-text

Corrigendum to “Refeeding ewe’s ad libitum after energy restriction during mid-pregnancy does not affect lamb feed conversion ratio, animal performance and meat quality” [Small Ruminant Res. 180 (2019) 57–62]

Small Ruminant Research ◽

10.1016/j.smallrumres.2019.106032 ◽

2020 ◽

Vol 184 ◽

pp. 106032

Author(s):

Santiago Luzardo ◽

Guillermo De Souza ◽

Graciela Quintans ◽

Georgget Banchero

Keyword(s):

Meat Quality ◽

Small Ruminant ◽

Conversion Ratio ◽

Energy Restriction ◽

Feed Conversion Ratio ◽

Animal Performance ◽

Feed Conversion ◽

Ad Libitum

Download Full-text

Refeeding ewe’s ad libitum after energy restriction during mid-pregnancy does not affect lamb feed conversion ratio, animal performance and meat quality

Small Ruminant Research ◽

10.1016/j.smallrumres.2019.09.020 ◽

2019 ◽

Vol 180 ◽

pp. 57-62

Author(s):

Santiago Luzardo ◽

Guillermo de Souza ◽

Graciela Quintans ◽

Georgget Banchero

Keyword(s):

Meat Quality ◽

Conversion Ratio ◽

Energy Restriction ◽

Feed Conversion Ratio ◽

Animal Performance ◽

Feed Conversion ◽

Ad Libitum

Download Full-text

Effect of BioPlus YC Probiotic Supplementation on Gut Microbiota, Production Performance, Carcass and Meat Quality of Pigs

Animals ◽

10.3390/ani11061581 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1581

Author(s):

Artur Rybarczyk ◽

Elżbieta Bogusławska-Wąs ◽

Alicja Dłubała

Keyword(s):

Bacillus Subtilis ◽

Meat Quality ◽

Bacillus Licheniformis ◽

Average Daily Gain ◽

Production Performance ◽

Probiotic Bacteria ◽

Control Group ◽

Production Traits ◽

Feed Conversion

The objective of the study was to determine the effects of probiotic bacteria Bacillus licheniformis and Bacillus subtilis on microbiological properties of feed mixtures and on the digestive tract content as applicable to production traits and carcass characteristics of fatteners. The experiment was performed on 83,838 fatteners from four successive (insertions) productions in two groups. From the seventy eighth day of age till marketing to the slaughter plant, the pigs were supplied with BioPlus YC probiotic (Chr. Hansen) in the amount of 400 g/t. The preparation contained a complex of probiotic bacteria Bacillus licheniformis DSM 5749, and Bacillus subtilis DSM 5750 spores in a 1:1 ratio. From the fourth insertion, after reaching a body weight of approximately 112 kg, 60 fatteners were selected from each group to measure carcass quality and half of them for meat quality evaluation. Moreover, microbiological analyses in feed and colon were performed. The study showed that BioPlus YC probiotics supplementation resulted in a significantly higher count of B. subtilis and B. licheniformis in the feed, a higher count of B. subtilis, B. licheniformis and LAB, as well as a lower count of Enterobacteriaceae, Enterococcus, Clostridium and Bacillus sp. in the mucosa and in the colorectal content of the test pigs. Our work has shown that supplementation with the BioPlus YC probiotic had a positive effect on the production traits of pigs mainly by reducing mortality (2.83%, p = 0.010), lowering feed conversion ratio—FCR (2.59 kg/kg, p = 0.013), better average daily gain—ADG (0.95 kg/day, p = 0.002) and shorter fattening period (77.25 days, p = 0.019) when compared to the control group (4.19%; 2.79 kg/kg; 0.89 kg/day; 92.8 days, respectively). The addition of the specific Bacillus bacteria did not influence carcass and meat characteristics of the test fatteners.

Download Full-text

Daily methane emissions and emission intensity of grazing beef cattle genetically divergent for residual feed intake

Animal Production Science ◽

10.1071/an15111 ◽

2017 ◽

Vol 57 (4) ◽

pp. 627 ◽

Cited By ~ 3

Author(s):

J. I. Velazco ◽

R. M. Herd ◽

D. J. Cottle ◽

R. S. Hegarty

Keyword(s):

Feed Intake ◽

Emission Intensity ◽

Dry Matter ◽

Average Daily Gain ◽

Residual Feed Intake ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Breeding Value ◽

Dry Matter Intake ◽

Feed Conversion

As daily methane production (DMP; g CH4/day) is strongly correlated with dry matter intake (DMI), the breeding of cattle that require less feed to achieve a desired rate of average daily gain (ADG) by selection for a low residual feed intake (RFI) can be expected to reduce DMP and also emission intensity (EI; g CH4/kg ADG). An experiment was conducted to compare DMP and EI of Angus cattle genetically divergent for RFI and 400-day weight (400dWT). In a 6-week grazing study, 64 yearling-age cattle (30 steers, 34 heifers) were grazed on temperate pastures, with heifers and steers grazing separate paddocks. Liveweight (LW) was monitored weekly and DMP of individual cattle was measured by a GreenFeed emission monitoring unit in each paddock. Thirty-nine of the possible 64 animals had emission data recorded for 15 or more days, and only data for these animals were analysed. For these cattle, regression against their mid-parent estimated breeding value (EBV) for post-weaning RFI (RFI-EBV) showed that a lower RFI-EBV was associated with higher LW at the start of experiment. Predicted dry matter intake (pDMI), predicted DMP (pDMP) and measured DMP (mDMP) were all negatively correlated with RFI-EBV (P < 0.05), whereas ADG, EI, predicted CH4 yield (pMY; g CH4/kg DMI) were not correlated with RFI-EBV (P > 0.1). Daily CH4 production was positively correlated with animal LW and ADG (P < 0.05). The associations between ADG and its dependent traits EI and pMY and predicted feed conversion ratio (kg pDMI/kg ADG) were strongly negative (r = –0.82, –0.57 and –0.85, P < 0.001) implying that faster daily growth by cattle was accompanied by lower EI, MY and feed conversion ratio. These results show that cattle genetically divergent for RFI do not necessarily differ in ADG, EI or pMY on pasture and that, if heavier, cattle with lower RFI-EBV can actually have higher DMP while grazing moderate quality pastures.

Download Full-text

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.

Download Full-text

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.

Download Full-text

Pengaruh Suplementasi Ampas Tahu, Ampas Tempe dan Ampas Kecap dalam Ransum Terhadap Performan Domba Lokal Jantan

Sains Peternakan ◽

10.20961/sainspet.5.1.1-9 ◽

2017 ◽

Vol 5 (1) ◽

pp. 1

Author(s):

Eka Handayanta

Keyword(s):

Body Weight ◽

Organic Matter ◽

Crude Protein ◽

Average Daily Gain ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Soy Sauce ◽

Feed Consumption ◽

Feed Conversion ◽

Daily Gain

The aim of this research to determine the effect of supplementation of tofu. tempe, and soy sauce waste in ration on male local sheep performance. This research was carried out during three month, take place on July until October 200E in Minifarm Dept. of Animal Science, Agriculture Faculty of Sebelas Maret University, located in Jatikuwung. Gondangrejo, Karanganyar. It used 12 male local sheeps with average body weight of 15.86 ±0.93 kg, divided into four treatments and three replications, each replication consist of one sheep. The ration consisted of king grass only as basal diet, as many as four percent base on body weight. The treatment given is in the form of feed supplement, that namely without supplement (RO), 250 gram tofu waste (R1), 250 gram tempe waste (R2), and 250 gram soy sauce waste (R3). The data variables collected were feed consumption, dry and organic matter digestibility, crude protein consumption, energy consumption, average daily gain, and feed conversion ratio. All of data except average daily gain was analyzed by completely randomized design one way classification. While average daily gain was analyzed by covariance analyze. The result were significant followed by Duncan new multiple range test. The result showed that average of R0, RI, R2 and R3 for feed consumption 430.52; 720.44; 704.44; 549.08 gram/day, dry matter digestibility (%) 61,07; 72,46; 69,68: 63,60, organic matter digestibility (%) 64,41: 74,94; 72.41; 64,7 1, crude protein consumption 47.66; 106.77; 85.83; 73.70 gram/day, energy consumption 281.82; 482.65; 432.67; 330.83 gram/day, average daily gain 50.00.1X00: 116.19; 38.10 gram/day and feed conversion ratio 8.74; 5.61; 6.06; 15.2. The result of variance analyze showed that feed supplementation have highly significant effect (P<0.01) on all of the data variable colected. Conclusion of this research was supplementation of tofu waste and tempe waste could improved performance, while soy sauce waste could not improved the performance of male local sheep. Key words : sheep, tofu waste, tempe waste, soy sauce waste, performance

Download Full-text

Impact of sow lactation feed intake on the growth and suckling behavior of low and average birthweight pigs to 10 weeks of age

Translational Animal Science ◽

10.1093/tas/txaa057 ◽

2020 ◽

Vol 4 (2) ◽

pp. 655-665

Author(s):

Samuel J Hawe ◽

Nigel Scollan ◽

Alan Gordon ◽

Elizabeth Magowan

Keyword(s):

Feed Intake ◽

Compensatory Growth ◽

Average Daily Gain ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Foster Mother ◽

Feed Conversion ◽

Relative Growth ◽

Sow Lactation ◽

Daily Gain

Abstract Improved genetics in commercial pig production have resulted in larger litter sizes. However this has increased the prevalence of compromised pigs exhibiting inferior birthweights, weaning weights, and lifetime performance. This study aimed to determine the effects of increased sow lactation feed intake on growth of low and average birthweight piglets until 10 wk of age. Low (Low BW; <1 kg) and average (Av BW; 1.3–1.7 kg) birthweight animals were reared in uniformly weighted litters comprising 14 piglets on a foster mother offered either a low (Low FA; max 7.5 kg/d) or high (High FA; max 11 kg/d) feed allowance over a 28- ± 1-d lactation. Piglet performance was monitored from birth until 10 wk of age. Sows offered a High FA consumed 42.4 kg more feed on average than those offered Low FA, resulting in a greater derived milk yield (P < 0.05). Animals of Av BW remained heavier than Low BW pigs throughout the trial (P < 0.05). Piglets reared by High FA sows were heavier at weeks 3, 4, 5, and 7 (P < 0.05) but not week 10 (P > 0.05). Growth rate of piglets relative to their birthweight was significantly greater for Low BW piglets than those of Av BW during lactation (P < 0.001). Piglets reared by sows offered a High FA expressed greater relative growth preweaning (P < 0.05); however, postweaning relative growth for piglets reared on sows offered a Low FA was greater (P < 0.05) suggesting compensatory growth. Neither birthweight nor sow feed allowance significantly affected preweaning mortality (P > 0.05). However, Low BW animals on sows with a High FA recorded half the preweaning mortality of Low BW pigs on sows with a Low FA. During week 1 of lactation, Av BW litters recorded a greater total suckling duration compared to Low BW litters (P < 0.05) but there was no difference in suckling frequency (P > 0.05). During week 3 of lactation, High FA litters displayed a significantly lower suckling frequency (P < 0.05) yet a greater total suckling duration (P < 0.001). Average daily gain was greater for Av BW pigs during weeks 4–7 (P < 0.001) but no difference was recorded between weeks 7 and 10 (P > 0.05). Average daily feed intake was greater for Av BW pigs throughout the nursery period (P < 0.05) but feed–conversion ratio did not differ compared to Low BW pens (P>0.05). In conclusion, offering sows a High FA increased weaning weight of all animals; however, birthweight was the major determinant of postweaning performance.

Download Full-text