weaning pigs
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Animals ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 203
Author(s):  
Grazia Pastorelli ◽  
Valentina Serra ◽  
Lauretta Turin ◽  
Veronica Redaelli ◽  
Fabio Luzi ◽  
...  

Tail docking has been used in the pig industry to decrease the occurrence of tail biting behavior. This abnormal behavior has a multifactorial origin since it is a response to simultaneous environmental, nutritional and management changes. Given the calming properties of Passiflora incarnata, we hypothesized that dietary supplementation with the extract in weaned pigs could result in a modification of behavior and physiologic indicators linked to stress. Weaned piglets (n = 120, mean body weight 9.07 ± 2.30 kg) were randomly allocated to one of two dietary treatments: control diet (CON) and CON supplemented with 1 kg/t of P. incarnata (PAS). The trial was 28 days long. The presence of skin lesions was assessed at d-1, d-10, d-19, and d-28, and saliva samples were collected for IgA and cortisol determinations at the same sampling times. Results showed the PAS group was characterized by equal growth performance as the CON group, fewer ear lesions (p < 0.05), less aggressive behavior (p < 0.001), higher enrichment exploration (p < 0.001) and lower cortisol levels (p < 0.01). Time effect was observed for tail lesions (p < 0.001) and behavioral observations (p < 0.001). Additional research is required to determine the effect of P. incarnata extract using a larger number of animals and longer period of supplementation when risks associated with tail biting are uncontrolled.


Author(s):  
G.R. Tsapalova ◽  
◽  

The effect of the vitamin and mineral supplement "Kostoprav" on the level of erythrocytes and biochemical parameters of blood, as well as on indicators of live weight, absolute and relative growth and exterior indicators was studied. As a result of the research, it was established that the piglets of the experimental groups, which were fed the supplement "Kostoprav" at a dose of 20 g / kg against the background of the main diet, for 21 days. feed and 30 g/1 kg feed contributed to an increase in the live weight of weaned pigs by 15.6 and 18.4 % than in the control. The blood parameters of the weaning pigs were within the physiological norm and in the third experimental group were accompanied by an increase in the level of erythrocytes by 17.6 %, calcium by 18.7 %, phosphorus by 16.7 %, sugar by 13.2 %, compared with the control. group. This indicates an improvement in the digestive function of the gastrointestinal tract and an increase in metabolic processes in the body. The use of the vitamin and mineral supplement "Kostoprav" contributed to an increase in the measurements of the body length in the 3rd experimental group by 2.3 %, chest girth by 3.3 %, height at the withers by 0.9 % than in the control group.


2021 ◽  
Vol 12 (2) ◽  
pp. 195
Author(s):  
E. Garcia-Puig ◽  
F. Liu ◽  
R.S. Morrison ◽  
A. Lisle ◽  
E. Roura

2021 ◽  
Vol 4 (3) ◽  
pp. 1109-1116
Author(s):  
Nguyen Thi Thu Hang ◽  
Truong Quang Lam ◽  
Dao Le Anh ◽  
Nguyen Thi Hoa ◽  
Nguyen Thi Lan ◽  
...  

This study aimed to diagnose swine dysentery (SD) caused by Brachyspira hyodysenteriae in pigs by the PCR method in Vietnam. Of the 250 samples, 29 isolates of B. hyodysenteriae (11.60%) were identified by PCR in seven provinces of Northern Vietnam, and the infection rate differed from region to region. From the positive cases of B. hyodysenteriae, we analyzed B. hyodysenteriae infected cases according to the ages of the pigs, farm sizes, and veterinary hygiene practices to get more information about the disease in Vietnam. The results showed that the positive B. hyodysenteriae samples were commonly seen in post-weaning pigs (32.14%) in households (20.73%) with poor hygiene (24.69%). Clinical signs of SD included high fever (100%); anorexia (100%); watery, bloody diarrhea, usually gray to brown in color (100%); and weight loss (86.42%). Gross lesions of SD were limited to the large intestine were described as having a fibrinous, blood-flecked membrane covering the mucosa (93.75%), swollen with hemorrhaged colon and cecum (75.00%), and mesenteric lymph nodes (81.25%).


2021 ◽  
Vol 15 (3) ◽  
pp. 64-70
Author(s):  
A. S. Novikov ◽  
A. L. Kryazhev

The purpose of the research is to study the contamination of environmental objects with Cryptosporidium spp. oocysts in industrial pig farm; desinfection against exogenous stages of Cryptosporidium spp. using Kenocox.Materials and methods. The studies were carried out on the basis of an industrial pig breeding complex in the Cherepovets district of the Vologda region in a pigsty for 120 heads, divided into 2 sectors, as well as in a pigsty for weaning pigs and a fattening pigsty for 1500 and 2000 heads respectively. For this, scrapings were taken from the floors of the pens, walkways, and walls of feeders and examined them for the presence of Cryptosporidium spp. oocysts. Then, in the nursery after transferring the piglets to the rearing section, desinfection was carried out. One sector was treated with Kenocox at a dose of 0.5 L per 1 m2 with an exposure of 2 hours, the other sector – with a hot 4% sodium hydroxide solution at a rate of 1 L per 1 m2 with an exposure of 3 hours. One day after the treatment, the oocyst contamination of Cryptosporidium spp. in environmental objects in both sectors was re-examined.Results and discussion. The highest contamination of environmental objects with Cryptosporidium spp. oocysts (floors and walls of pens, feeders, floors of aisles) was found in the brood pigsty, where all the examined objects were contaminated to varying degrees (19.4%). With an increase in the age of piglets and their transfer to pigsties for weaners, and later on for rearing, there is a decrease in the contamination of the premises in which these age groups of animals are kept (10.0 and 2.5% respectively). With the desinfection of the queen-shed, as the most contaminated by oocysts of Cryptosporidium spp. from the pig-breeding premises we examined, a significant effect was achieved with the use of Kenocox. Sodium hydroxide solution was found to be ineffective against Cryptosporidium spp. oocysts.


2021 ◽  
pp. 104681
Author(s):  
Uffe Krogh ◽  
Ole Højberg ◽  
Leslie Foldager ◽  
Sundas Rani ◽  
Natalja Nørskov ◽  
...  

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2232
Author(s):  
Huan Wang ◽  
In-ho Kim

A total of 180, 4-week-old crossbred weaning piglets ((Yorkshire × Landrace) × Duroc; 6.67 ± 1.40 kg) were used in a 42 day experiment to evaluate the effect of dietary probiotics (Lactobacillus plantarum BG0001) on growth performance, nutrient digestibility, blood profile, fecal microbiota, and noxious gas emission. All pigs were randomly allotted to one of four treatment diets in a completely randomized block design. Each treatment had nine replicates with five pigs/pen (mixed sex) Designated dietary treatments were as: (1) basal diet (NC), (2) NC + 0.2% antibiotics (chlortetracycline) (PC), (3) NC + 0.1% L. plantarum BG0001 (Lactobacillus plantarum BG0001) (NC1), (4) NC + 0.2% L. plantarum BG0001 (NC2). On d 42, BW and G:F were lower (p < 0.05) in pigs fed NC diet compared with PC diet and probiotic diets. Throughout this experiment, the average daily gain increased (p < 0.05) in pigs when fed with PC and probiotic diets than the NC diet. The average daily feed intake was higher (p < 0.05) in pigs fed PC diet during day 0–7 and 22–42, and probiotic diets during day 0–7 compared with NC diet, respectively. The Lactobacillus count was increased and Escherichia coli count was decreased (p < 0.05) in the fecal microbiota of pigs fed probiotic diets, and E. coli were decreased (p < 0.05) when fed a PC diet compared with the NC diet on day 21. Moreover, the apparent total tract nutrient digestibility, blood profile, and the concentration of noxious gas emission had no negative effects by the probiotic treatments. In conclusion, dietary supplementation with L. plantarum BG0001 significantly improved the growth performance, increased fecal Lactobacillus, and decreased E. coli counts in weaning pigs.


Author(s):  
Julio César Castillo-Cuenca ◽  
Álvaro Martínez-Moreno ◽  
José Manuel Diaz-Cao ◽  
Angel Entrena-García ◽  
Jorge Fraga ◽  
...  

AbstractA cross-sectional study was carried out to determine the seroprevalence of Toxoplasma gondii and associated risk factors in pigs in the largest pork-producing region in Cuba. Serum samples from 420 pigs, including 210 sows and 210 post-weaning pigs, were tested for antibodies against T. gondii using a commercial indirect enzyme-linked immunosorbent assay. Anti-T. gondii antibodies were detected in 56 animals (13.3%, 95% CI: 10.1–16.6). A generalized estimating equations model revealed that the risk factors associated with higher seropositivity in pigs were altitude (higher in farm’s location < 250 m above sea level (masl) versus ≥ 250 masl) and age (higher in sows compared to post-weaning pigs). The results indicated that this protozoan parasite is widely distributed on pig farms in the study area, which is a public health concern since the consumption of raw or undercooked pork meat products containing tissue cysts is considered one of the main routes of T. gondii transmission worldwide. Control measures should be implemented to reduce the risk of exposure to T. gondii in pigs in Cuba.


Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2092
Author(s):  
Jinsu Hong ◽  
Hee-Seong Kim ◽  
Sungho Do ◽  
Hong-Jun Kim ◽  
Sung-Won Kim ◽  
...  

This study was conducted to evaluate the effects of lysine cell mass (LCM) as an alternative lysine source in diets for weaning pigs on growth performance, diarrhea incidence, and blood profiles. In experiment 1, a total of 200 weaning pigs, with an average body weight (BW) of 6.89 ± 1.04 kg, were allotted into one of five treatments with four replicates of 10 pigs per pen in a randomized complete block design (RCBD). The dietary treatments were composed of LCM supplementation (0, 0.25, 0.5, 0.75, or 1.0%) with partial replacement of L-lysine·HCl (0 to 0.8% for phase 1 diets and 0 to 0.07% for phase 2 diets). The BW and feed intake were recorded at the end of each phase (d 0 to 14 for phase 1, d 14 to 35 for phase 2), and diarrhea incidence was checked daily throughout the experimental period. Blood samples were taken from the jugular vein of pigs at 2 weeks and 5 weeks to determine the blood profiles of weaning pigs. In experiment 2, a total of 144 weaning pigs with an average BW of 6.44 ± 1.19 kg were allotted into one of six treatments with six replicates of four pigs per pen in RCBD. The dietary treatments were composed of LCM supplementation (0 to 3.5% for phase 1 diets and 0 to 2.2% for phase 2 diets) with replacement of L-lysine·HCl from 0 to 100%. In experiment 1, partial replacement of L-lysine·HCl with 0 to 1% LCM did not affect growth performance and diarrhea incidence of pigs. An increase in the LCM supplementation from 0 to 1% with partial replacement of L-lysine·HCl had no influence on the blood urea nitrogen concentrations, whereas it resulted in a linear decrease (p < 0.05) in the serum IgG concentrations for 5 weeks. In experiment 2, increasing the dietary level of LCM with replacement of L-lysine·HCl quadratically decreased (p < 0.05) ADG and G–F ratio for phase 2 and G–F ratio for the overall period such that 100% replacement of L-lysine·HCl with LCM decreased ADG and G–F ratio of weaning pigs. An increase in the LCM supplementation with replacement of L-lysine·HCl tended to decrease linearly (p < 0.10) the diarrhea incidence of weaning pigs for the overall period and linearly decrease (p < 0.05) the serum IgG concentrations for 2 weeks. In conclusion, partial replacement of L-lysine·HCl with LCM from 0 to 1% had no negative impacts on the growth performance, but 100% replacement of L-lysine·HCl with LCM decreased the growth performance of weaning pigs. Therefore, LCM could be included in the diets for weaning pigs up to 2.8% and 1.76% for phase 1 and phase 2, respectively, as a substitute for L-lysine·HCl without detrimental effects on the performance of weaning pigs.


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