scholarly journals Effects of Long-Term Gentle Handling on Behavioral Responses, Production Performance, and Meat Quality of Pigs

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 330 ◽  
Author(s):  
Chao Wang ◽  
Yongjie Chen ◽  
Yanju Bi ◽  
Peng Zhao ◽  
Hanqing Sun ◽  
...  
Keyword(s):  
Heart Rate ◽  
Meat Quality ◽  
Average Daily Gain ◽  
Production Performance ◽  
Control Group ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Significant Difference

In order to investigate the effect of gentle handling on the behavior, performance, and meat quality of pigs from weaning to slaughter, 144 6-week-old weaned hybrid Min piglets (a native breed) were selected and divided into a handling group (HG: 9 pens × 8 pigs) and a control group (CG: 9 pens × 8 pigs). After 6 weeks of handling, we observed and then evaluated the pigs’ responses to a handler with behavioral scores. Moreover, we measured heart rate and production performance. Three pigs were randomly selected from each of the 18 pens and divided into a handling group (HG: n = 27) and a control group (CG: n = 27), and the HG pigs were given gentle handling until slaughter. Subsequently, we evaluated meat quality and the production performance of six pigs from each group. The results show that AA test (approaching–avoidance test) scores in HG pigs, the number of contacts with the handler and absence of contact with the handler, were significantly higher than in the CG pigs (p < 0.01). The occurrences of avoidance and looking at the handler were lower in the HG than in the CG group (p < 0.01); however, heart rate was not found to be significantly different between the two groups (p = 0.63). No significant difference was found in the average daily gain, average daily feed intake, and feed conversion ratio between the two groups during the two periods (p > 0.05). The b* value was determined 45 min after slaughter, and it was significantly lower in the HG than that in the CG group (p = 0.002). Furthermore, 2 h after slaughter, the L value of the HG group was significantly higher than that of the CG group (p = 0.047), but no difference was observed in carcass quality or other meat quality indicators between the two groups (p > 0.05). The results indicate that gentle handling could reduce pigs’ anxiety and increase their willingness to approach the handler, increasing the intimacy of the pigs and handlers. However, long-term gentle handling had little effect on pig performance, carcass quality, and meat quality.

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

Animals ◽  
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.

scholarly journals Effect of piglet castration with nonsurgical sterilant on the zootechnical performance and pork carcass quality

2016 ◽  
Vol 68 (6) ◽  
pp. 1487-1496 ◽  
Author(s):  
D.S. Lucas ◽  
E.T.F. Siqueira ◽  
M.M.H. Haguiwara ◽  
S.S. Azevedo ◽  
S.E. Yotsuyanagi ◽  
...  
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Treated Group ◽  
Control Group ◽  
Active Principle ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Zinc Gluconate ◽  
Hormone Levels ◽  
Significant Difference

ABSTRACT A non-surgical sterilant (NSS) was used with the objective of assessing the zootechnical performance, carcass and meat quality, and hormone levels. 90 male piglets were selected with birthweights varying between 1.5kg to 2.0kg. The control group was constituted of 45 males castrated by the conventional surgical method, at the seventh day of age, and the treated group was constituted of 45 males castrated with NSS (active principle of zinc gluconate in the concentration of 26.2mg/mL associated to the dimethyl sulfoxide at 0.5%), with the application of the first dose on the seventh day of age and the second dose on the fourteenth day of age. The zootechnical assessments were carried out on the farm and consisted: weight gain in the periods per animal and feed conversion. The slaughter of the animals and the assessment of the carcass and meat quality and hormone levels were carried out in a slaughterhouse and the municipality of Campinas (SP). The study demonstrated that the use of NSS was a viable alternative in relation to the zootechnical performance and the carcass quality. In relation to the meat quality there was no significant difference in the majority of the assessed parameters.

scholarly journals EFFECTS OF LONG-TERM RELATIVELY HIGH AND LOW TEMPERATURE USE ON GROWTH PERFORMANCE AND MEAT QUALITY OF BROILERS

2020 ◽  
pp. 12-17
Author(s):  
Yingying Qiao ◽  
Oleksandr Kyselov ◽  
Changzhong Liu
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Growth Performance ◽  
Meat Quality ◽  
Low Temperatures ◽  
Production Performance ◽  
Control Group ◽  
Temperature Group

The experiment aims to study the effects of long-term relatively high and low temperatures on growth performance and meat quality of broiler chickens. The experiment was carried out in Yunnan Academy of Animal Science, for determine the quality of meat used the laboratories of Henan Institute of Science and Technology. A total of experiment use 240 healthy 1-day-old Avian broiler chickens were randomly divided into three groups: relatively high temperature group, low temperature group and control group. The results of the experiment confirm that at low temperatures, when the energy consumption of the animal decreases, it leads to weight loss, which we can see in the low-temperature group, the average daily weight gain in this experiment was significantly lower than in the control group (P <0.05). It was found that low-temperature stress significantly increased the mortality of broilers, at the age of 42 days in the low-temperature group, the mortality of chickens was higher than in the control group, by 71.4%. Among all evaluated groups on the content of unsaturated fatty acids SFA, PUFA, MUFA and EFA in the muscles of the breasts of broilers, the lowest content was in the lower temperature group than in the control group, by 48.3%, 46.9%, 51.5% and 43.9%. Studies have shown that influence of high-temperature above 30°C causes disturbances in poultry behavior and physiology, leading to reduced production performance. Broilers aged 35-40 days experienced 31°C high-temperature stress and found that their performance and immunity decreased. Broilers feed intake and growth rate at 35°C high temperature were reduced by 13% and 32% than at 20°C. The results showed that: ① Relatively high temperature and low temperature for a long time reduced the growth performance and mortality of broilers, and long-term relatively low temperature decreased the slaughter performance of broilers.② Relatively high and low temperatures for a long period of time reduced the levels of serine, glycine, SFA, PUFA, USFA, EFA and MUFA in broiler breast muscles negative effect on meat quality. ③ The long-term relatively low temperature has a greater adverse effect on broilers than the long-term relatively high temperature. The results provided some theoretical basis for accurately setting the broiler breeding environment temperature, improving broiler quality, maximizing broiler production performance, and increasing the economic benefits of the farm.

Effects of daidzein on growth performance, blood metabolites and meat quality of finishing Xianan beef cattle

2019 ◽  
Vol 157 (2) ◽  
pp. 169-175
Author(s):  
H. Liang ◽  
X. H. Zhao ◽  
K. Pan ◽  
L. J. Xu ◽  
Z. H. Yi ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Growth Performance ◽  
Meat Quality ◽  
Average Daily Gain ◽  
Control Group ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Blood Biochemical ◽  
Lower Shear

AbstractAn experiment was conducted to determine the effects of supplementing different amounts of daidzein in a diet on the growth performance, blood biochemical parameters and meat quality of finishing beef cattle. Thirty finishing Xianan steers were distributed in three groups equilibrated by weight and fed three different dietary treatments (concentrate ratio = 80%): (1) control; (2) 500 mg/kg daidzein and (3) 1000 mg/kg daidzein, respectively. Steers were slaughtered after an 80-day feeding trial. Results showed that daidzein supplementation had no effect on the final body weight, average daily gain and feed conversion rate of steers. Steers fed with 1000 mg/kg daidzein had greater dry matter intake than those fed with control diets. Compared with the control group, the 1000 mg/kg daidzein group had a higher fat thickness, lower shear force and lightness. The pH, drip loss, cooking loss, redness (a*), yellowness (b*), moisture, ash, crude protein and intramuscular fat of the Longissimus dorsi muscle were unaffected by daidzein supplementation. Compared with the control group, the 1000 mg/kg daidzein group significantly increased the serum concentrations of insulin, free fatty acid and Glutamic-pyruvic transaminase. The 500 mg/kg daidzein group significantly increased the serum concentration of tetraiodothyronine compared with the control group. Supplemental daidzein did not affect the blood antioxidant ability and blood immune parameters in serum. In conclusion, daidzein supplementation above 500 mg/day modifies feed intake and metabolic and hormonal profile, with positive and negative effects on meat quality.

scholarly journals Evaluation of the Production Performance and the Meat Quality of Chickens Reared in Organic System. As Affected by the Inclusion of Calliphora sp. in the Diet

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 324
Author(s):  
Ainhoa Sarmiento-García ◽  
Carlos Palacios ◽  
Inmaculada González-Martín ◽  
Isabel Revilla
Keyword(s):  
Meat Quality ◽  
Near Infrared ◽  
Average Daily Gain ◽  
Production Performance ◽  
Chicken Breast ◽  
Control Group ◽  
Feed Conversion ◽  
Breast Meat ◽  
Organic System ◽  
Final Body Weight

The use of insects can be a possible source of protein. This study uses Calliphora sp. larvae (CLM) as a protein source in 320 one-day-old medium-growing male chicks (RedBro) during their first month of life. Chickens were randomly assigned to four dietary treatments. Each group consisted of 10 animals, and a total of 8 replicas. Control group was fed with a certified organic feed. The experimental treatments were supplemented with 5% (T2), 10% (T3), or 15% (T4) of CLM, reducing in each case the corresponding percentage of feed quantity. Productive development and meat quality were analyzed, and near infrared spectroscopy (NIRS) was used as a tool for classifying the samples. Chickens of T4 showed greater final body weight and total average daily gain, but they reduced consumption and feed conversion ratio (FCR). The chicken breast meat of T4 had lower cooking losses and higher palmitoleic acid content (p < 0.01). NIRS classified correct 92.4% of samples according to the food received. CLM is presented as a potential ingredient for the diet of medium-slow growing chickens raised in organic systems.

scholarly journals The Effect of Corn Substitution with Palm Kernel Meal Treated by Enzyme on Production Performance and Carcass Quality of Broiler

2018 ◽  
Vol 42 (2) ◽  
Author(s):  
Muhammad Halim Natsir ◽  
Irfan Djunaidi ◽  
Osfar Sjofjan ◽  
Antonius Suwanto ◽  
Esti Puspitasari ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Palm Kernel ◽  
Abdominal Fat ◽  
Production Performance ◽  
Carcass Quality ◽  
Significant Difference ◽  
Kernel Meal ◽  
Palm Kernel Meal

The research was aimed to evaluate the effects of substitution level of corn with palm kernel meal (PKM) untreated and palm kernel meal (PKM) treated by enzyme on production performance and carcass quality of broilers. The method used in this research was experiment using nested of completely randomized design with 2 factors, the main factor was type of palm kernel meal factors consisting of PKM without enzyme (B1) and PKM by mannanase enzyme (B2), and substitution corn level L0 (without substitution), L1 (12.5%), L2 (25%), L3 (37.5%) and L4 (50%). The different among the treatments were tested by Duncan’s multiple range test. The results showed that corn substitution with PKM untreated and PKM treated by enzymes was significantly effect (P<0.01) on feed conversion ratio (FCR), tenderness, meat cholesterol of broilers and income over feed cost (IOFC) and significant effect (P<0.05) on feed intake, but there is no significant difference on body weight, percentages of abdominal fat and water holding capacity (WHC). Furthermore, effect of level corn substitition with PKM nested to PKM untreated and PKM treated by enzyme was significantly effect (P<0.01) on feed intake, body weight, FCR, and tenderness and significant effect (P<0.05) on IOFC, but there is no effect on percentages of abdominal fat, WHC and meat cholesterol. It can be concluded that the corn substitution with PKM treated by enzymes was better than the PKM untreated on production performance and carcass quality of broilers. The optimal level of PKM untreated as corn substitution was 12.5%. While replacement with PKM treated by enzyme can be used up to 25%.

Long-term sexual functioning in germ-cell tumor survivors.

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 549-549
Author(s):  
Michal Chovanec ◽  
Lucia Vasilkova ◽  
Lucia Setteyova ◽  
Jana Obertova ◽  
Patrik Palacka ◽  
...  
Keyword(s):  
Sexual Function ◽  
Germ Cell ◽  
Sexual Functioning ◽  
Germ Cell Tumors ◽  
Sexual Relationships ◽  
Control Group ◽  
Significant Difference ◽  
Quality Of Sex Life

549 Background: Treatment for germ-cell tumors (GCT) may lead to long-term consequences in GCT survivors. This study aimed to evaluate a long-term sexual functioning after curative treatment for GCT. Methods: GCT survivors (N = 155) from a national cancer centre completed a Sexual Function Questionnaire that was modified from PROMIS Sexual Function and Satisfaction Questionnaire at a median 10 years of follow up (range 5-32) as a primary exploratory aim. Seventeen survivors (11%) had orchiectomy alone (controls), while 138 (89%) survivors received treatment beyond orchiectomy. The study group consisted of survivors receiving a cisplatin-based chemotherapy, radiotherapy to the retroperitoneal lymph nodes or both, while the control group included survivors treated with orchiectomy only. Results: Survivors treated with both chemotherapy and radiotherapy or any treatment had difficulty maintaining erection during the intercourse compared to the controls (both P = 0.04). Moreover, patients who received chemotherapy and radiotherapy reported difficulty in achieving orgasm during the intercourse ( P = 0.04) and they were disappointed with their overall quality of sex life ( P = 0.002). No difference in education, employment, marital status and parity was observed between the study groups (all P > 0.05). GCT survivors reported no differences in their sexual desire and in the number of attempts to initiate sexual intercourse in the last month. Survivors from all treatment groups reported none or mild anxiety resulting from sexual relationships and the desire to be sexually active was moderate among all subgroups, with no significant difference. Conclusions: Our prospective study shows that an impairment insexual function is a significant issue for long-term GCT survivors. Treatment with chemotherapy plus radiotherapy had the highest impact on the quality of sex life.

Effect of Bacillus Subtilis Protease on Growth, Production Performance and Feed Efficiency of Silkworm, Bombyx Mori L

2020 ◽  
Author(s):  
Linghong Sun ◽  
Anam Khalid ◽  
Fatima Khalid ◽  
Zaigui Wang
Keyword(s):  
Bacillus Subtilis ◽  
Feed Efficiency ◽  
Larval Instar ◽  
Average Daily Gain ◽  
Test Group ◽  
Production Performance ◽  
Control Group ◽  
Feed Conversion ◽  
Shell Weight ◽  
Crude Lipid

Abstract Background:The effects of Bacillus subtilis protease on the silkworm (Bombyxmori L) production performance and feed efficiency were investigated. 2250 silkworms were randomly divided into two groups, the test group and the control group, each group had three replicates. A certain concentration of protease was sprayed to the mulberry leaves of the test group, while equal volume of deionized water was sprayed to the control group. Test diets were fed in three phases: 3rd instar, 4th instar and 5th instar larval stage.Results: The results demonstrated that: (i) final weight (FW), average daily gain (ADG), average daily feed intake(ADFI), and feed conversion ratio (FCR) in 4th and 5th larval instar, (ii) midgut protease activity, crude protein digestibility (CPD), crude fiber digestibility (CFD) and cocoon shell conversion rate (CSCR) (iii) the total number of bad cocoons,coarse cocoon, average pupa weight (APW), average cocoon shell weight (ACSW) and average cocoon weight (ACW) were extremely significantly higher (P<0.01) in test group as compared to control group. While, (i) the digestibility of crude lipid (EED) and (ii) the fly larvae cocoons in test group were higher significantly (P<0.05) than that of the control group. Conclusion:These results indicated that the B. subtilis protease could enhance the silkworm growth performance, feed efficiency and the cocoon quality of silkworm.

scholarly journals The Effect of Humic-Fatty Acid Preparation on Production Parameters and Meat Quality of Growing Rabbits

2012 ◽  
Vol 12 (1) ◽  
pp. 117-126 ◽  
Author(s):  
Dorota Miśta ◽  
Anna Rząsa ◽  
Tadeusz Szmańko ◽  
Wojciech Zawadzki ◽  
Marzena Styczyńska ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Meat Quality ◽  
Control Diet ◽  
Diet Group ◽  
Control Group ◽  
Feed Conversion ◽  
Production Parameters ◽  
New Zealand White Rabbits ◽  
Pelleted Diet

The Effect of Humic-Fatty Acid Preparation on Production Parameters and Meat Quality of Growing RabbitsThe aim of the study was to determine the effect of a humic-fatty acid preparation on production parameters and meat quality of rabbits. Three groups of New Zealand White rabbits were used (one control and two experimental) with 8 animals per group. The animals of group C (control) were fed standard pelleted diet, group H5 received a control diet supplemented with 5%, and group H10 a control diet with 10% humic-fatty acid preparation. The experiment was terminated after 6 weeks feeding, when rabbits were slaughtered. The experimental groups showed higher gains and a higher feed conversion ratio than the control group. The dietary inclusion of the experimental additive had a beneficial effect on the meat quality traits, such as Fe concentration, hardness and colour, but it also increased the susceptibility of fat to oxidative changes.

scholarly journals Effect of Probiotics on production and egg quality of dual purpose chicken at Kathmundu in Nepal

2019 ◽  
Vol 48 (1) ◽  
pp. 29-35
Author(s):  
D Neupane ◽  
DB Nepali ◽  
N Devkota ◽  
MP Sharma ◽  
IP Kadaria
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Egg Production ◽  
Egg Quality ◽  
Proximate Analysis ◽  
Control Group ◽  
Feed Conversion ◽  
Nutrient Analysis ◽  
Significant Difference

A total of 448, Sakini (224) and Giriraja (224) breed of chickens were used to investigate the feed intake & weight gain from 0-150 days and egg production and egg quality from 150 – 240 days of age in Khumaltar Lalitpur Nepal. The four different levels of probiotics viz. 0,5, 10 and 15 ml of Probiotic (Poultry biosa)/kg of feed were used with randomized factor design 2*4*8(RBD) with 8 treatments and 8 replications. The data was recorded daily on feed intake and egg production and in every 15 days interval for weight gain. Results showed that the addition of probiotic to the feed significantly improved feed intake, weight gain , egg production and egg quality on sakini and giriraja breeds of chickens(P<0.05). Additionally, data on egg production and egg quality showed increased production in treatment group than control group (P<0.05).The general trend revealed increasing level of egg production from five to eight months with significant difference (P<0.05). Nutrient analysis of eggs by proximate analysis in terms of CP, CF, fat and energy showed significant difference (P<0.05). Thus to conclude, there is positive effect of probiotics for production and productivity in terms of feed conversion ratio, weight gain, egg production & egg quality in Sakini and Giriraja breed of Chicken. Bang. J. Anim. Sci. 2019. 48 (1): 29-35

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