Effect of different odors on the fighting behavior of weaning piglets after merging into a large pen
AbstractIn intensive pig production, the fighting behavior of weaning piglets after merging pens is relatively common. Fighting behavior not only easily causes injury in pigs but also affects the production performance of pigs. To reduce fighting behavior in farms, this study aimed to explore the possible effect of odorous substances on piglet fighting behavior after merging into a large pen. Six different sprays were tested: original creamy, cheese flavor, orange flavor, truffle, vanilla and pigpen flavor. In each experiment, two groups were set (one odor-sprayed and no sprayed control), and 12 pigs were used per group. A...
Source: Animal Science Journal - January 19, 2023 Category: Zoology Authors: Weijie Zhao,
Na Yang,
Lei Zhu,
Yisheng Lin,
Qiman Zhang,
Gang Shu,
Songbo Wang,
Ping Gao,
Xiaotong Zhu,
Lina Wang,
Qingyan Jiang Tags: RESEARCH ARTICLE Source Type: research
Estimation of genetic parameters for production, reproduction, and growth curve of Fars indigenous chicken
AbstractIranian native chicken, including Fars indigenous chicken, is an important genetic resource due to its adaptation to stressful environmental conditions, good endurance and resistance to disease. The aim of this research was to determine the genetic infrastructure of Fars indigenous chicken using several nonlinear functions. The dataset included body weight at hatch (BW1), body weight at the 8th week (BW8), body weight at the 12th week (BW12), weight at sexual maturity (WSM), age at sexual maturity (ASM), number of eggs in the first 12 weeks of laying period (EN), egg weight at the first day of laying (EW1), aver...
Source: Animal Science Journal - January 19, 2023 Category: Zoology Authors: Saeid Neysi,
Mostafa Ghaderi ‐Zefrehei,
Farjad Rafeie,
Mustafa Muhaghegh Dolatabady,
Mahdi Elahi Torshizi,
Sonia Zakizadeh,
Jacqueline Smith Tags: RESEARCH ARTICLE Source Type: research
Effect of different odors on the fighting behavior of weaning piglets after merging into a large pen
AbstractIn intensive pig production, the fighting behavior of weaning piglets after merging pens is relatively common. Fighting behavior not only easily causes injury in pigs but also affects the production performance of pigs. To reduce fighting behavior in farms, this study aimed to explore the possible effect of odorous substances on piglet fighting behavior after merging into a large pen. Six different sprays were tested: original creamy, cheese flavor, orange flavor, truffle, vanilla and pigpen flavor. In each experiment, two groups were set (one odor-sprayed and no sprayed control), and 12 pigs were used per group. A...
Source: Animal Science Journal - January 18, 2023 Category: Zoology Authors: Weijie Zhao,
Na Yang,
Lei Zhu,
Yisheng Lin,
Qiman Zhang,
Gang Shu,
Songbo Wang,
Ping Gao,
Xiaotong Zhu,
Lina Wang,
Qingyan Jiang Tags: RESEARCH ARTICLE Source Type: research
Reduction of oocyte shedding and cecal inflammation by 5 ‐aminolevulinic acid daily supplementation in laying hens infected with Eimeria tenella
AbstractThe present study aimed to evaluate the effects of 5-aminolevulinic acid (5-ALA) onEimeria tenella infection in laying hens. Oocyst shedding and histopathology were evaluated. A reduced oocyst shedding was observed 5 and 7 days post-infection (dpi) in the 5-ALA-administered group, but the total number of oocysts during the first infection period was not different between control and 5-ALA-treated groups. AfterE. tenella attack infection, the period of oocyst shedding in the 5-ALA-administered group lasted less long than that in controls. During the attack infection period, the total number of fecal oocysts in ...
Source: Animal Science Journal - January 11, 2023 Category: Zoology Authors: Toshimitsu Hatabu,
Hung Hoang Son Pham,
Wataru Aota,
Shota Fujino,
Rio Nishihara,
Go Kawamura,
Yuudai Sakogawa,
Shin Taniguchi,
Makoto Matsubayashi Tags: SHORT COMMUNICATION Source Type: research
Vascular endothelial growth factor isoforms are expressed in the uterus during estrous cycle of golden hamsters (Mesocricetus auratus)
AbstractWe investigated VEGF expression in the uterus during the estrous cycle in the golden hamster (Mesocricetus auratus). Reverse transcription polymerase chain reaction of genes expressed in the uterus revealed the presence of at least three different VEGF isoforms (hamster VEGF188, VEGF164, and VEGF120). They were highly homologous to the respective mouse and human isoforms. Furthermore, VEGF164 and VEGF120 were predominantly expressed in the hamster uterus during the estrous cycle. In situ hybridization revealed that VEGF is expressed only in the luminal and glandular epithelium of the endometrium but not in the stro...
Source: Animal Science Journal - January 9, 2023 Category: Zoology Authors: Hisashi Kishi,
Wataru Komatsu,
Koji Uchiyama,
Hidehito Takayama,
Tomomi Udagawa,
Shuji Ohhira,
Gen Kobashi Tags: RESEARCH ARTICLE Source Type: research
Effect of the gain rate during growing phase on the performance and characteristics of carcass and meat of super precocious steers
AbstractThe aim was to evaluate the effect of different rates of weight gain during the backgrounding on animal performance and carcass and meat characteristics of steers finished in feedlots. Thirty-six Angus steers, 12 ± 2 months of age, were backgrounded during 91 days on Aruana grass pasture (Panicum maximum cv. Aruana) managed under different stocking rates to achieve three different weight gains: HIGH ADG (average daily gain) —no feed restriction (ADG = 0.846 kg); MEDIUM ADG—moderate feed restriction (ADG = 0.456 kg); and LOW ADG—high feed restriction (ADG = 0.154 kg). To ensure the d...
Source: Animal Science Journal - January 8, 2023 Category: Zoology Authors: Marcelo Machado Severo,
Luis Fernando Glasenapp Menezes,
Fernando Kuss,
Wagner Paris,
Ruan Crespi Haveroth,
Guilherme B. Souto,
Ariadny Cristhina Sanches Tags: RESEARCH ARTICLE Source Type: research
Vascular endothelial growth factor isoforms are expressed in the uterus during estrous cycle of golden hamsters (Mesocricetus auratus)
AbstractWe investigated VEGF expression in the uterus during the estrous cycle in the golden hamster (Mesocricetus auratus). Reverse transcription polymerase chain reaction of genes expressed in the uterus revealed the presence of at least three different VEGF isoforms (hamster VEGF188, VEGF164, and VEGF120). They were highly homologous to the respective mouse and human isoforms. Furthermore, VEGF164 and VEGF120 were predominantly expressed in the hamster uterus during the estrous cycle. In situ hybridization revealed that VEGF is expressed only in the luminal and glandular epithelium of the endometrium but not in the stro...
Source: Animal Science Journal - January 8, 2023 Category: Zoology Authors: Hisashi Kishi,
Wataru Komatsu,
Koji Uchiyama,
Hidehito Takayama,
Tomomi Udagawa,
Shuji Ohhira,
Gen Kobashi Tags: RESEARCH ARTICLE Source Type: research
Dietary linseed supplementation improves meat quality and flavor of sheep by altering muscle fiber characteristics and antioxidant capacity
AbstractLinseed as a common oil crop that has been implicated in regulating the meat quality of animals. The aim of this investigation was to establish the effects of dietary linseed supplementation on carcass traits, meat quality, muscle fiber characteristics, volatile compounds and antioxidant capacity of sheep. Twenty-four Sunit sheep were distributed into 2 groups with different diet: control (CO) fed a standard diet and linseed (LS, 8% of extruded linseed). The results showed that linseed not only increasedM. longissimus thoracis (LT) increased the loin-eye area but also decreased pH24h, L* and shear force. Meanwhile,...
Source: Animal Science Journal - January 6, 2023 Category: Zoology Authors: Yanru Hou,
Chang Liu,
Lin Su,
Lihua Zhao,
Zhihao Yang,
Yanping Bai,
Lu Dou,
Duo Yao,
Ye Jin Tags: RESEARCH ARTICLE Source Type: research
Effect of difference in training skills on stress in horses trained by Kazakh trainers
This study aimed to evaluate the effect of differences in trainer skills on horse training during the early stages of riding habituation by measuring the levels of stress and changes in stress levels. Among nine untrained horses employed, five in Group A were trained by two low-skilled trainers, whereas the remaining four in Group B were trained by two high-skilled trainers using the traditional Kazakh method. Salivary α-amylase concentration was measured as a biomarker of stress immediately before and after each riding session during the training period. In the duration of riding and mooring times to the total riding hab...
Source: Animal Science Journal - December 31, 2022 Category: Zoology Authors: Rikako Kimura,
Samal Borankulova,
Suleimenov Zh. Maratbek Tags: RESEARCH ARTICLE Source Type: research
The capacity of inspection on farm and at the abattoir to predict post ‐mortem outcomes in slaughter pigs: A study at animal level
AbstractThe aim of this study was to investigate associations between ear, tail, and skin lesions, hernias, bursitis, and rectal prolapses at the abattoir and meat inspection outcomes in slaughter pigs, including carcass condemnations and trimmings, carcass weight, and carcass quality. This was an observational study whereby pigs were managed according to routine practices in a single abattoir. Data were collected from 1816 pigs. The relationship between animal-based welfare and post-mortem outcomes was analyzed using generalized mixed models (Proc Glimmix). Our findings showed that tail lesions were associated with entire...
Source: Animal Science Journal - December 30, 2022 Category: Zoology Authors: Dayane Lemos Teixeira,
Laura C. Salazar,
Rafael Larra ín,
Laura A. Boyle Tags: RESEARCH ARTICLE Source Type: research
