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Asian-Australasian Journal of Animal Sciences

Chuanqi Xia, Muhammad Aziz Ur Rahman, He Yang, Taoqi Shao, Qinghua Qiu, Huawei Su, Binghai Cao
Objective: This study investigated the effect of dietary crude protein (CP) supplementation on nutrient intake, nitrogen (N) utilisation, blood metabolites, ruminal fermentation and growth performance of young Holstein bulls. Methods: Twenty-one young bulls weighing 277 ± 11.2 kg were equally divided into three groups and were offered diets formulated with low CP [LCP; 10.21% CP and 4.22% rumen degradable protein (RDP)], medium CP (MCP; 12.35% CP and 5.17% RDP) and high CP (HCP; 14...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Muhammad Arif, Abdur Rehman, Mohamed Ezzat Abd El-Hack, Muhammad Saeed, Fateh Khan, Muhammad Akhtar, Ayman A Swelum, Islam M Saadeldin, Abdullah N Alowaimer
Objective: The present study attempted to determine an alternative to antibiotics in poultry feeding. Methods: A total of 520 seven-day-old quail chicks were randomly allotted to eight treatment groups in a completely randomized design to evaluate the effect of different levels of humic acid (HA) and black cumin (BC) seed on growth, carcass traits, gut microbes, and blood chemistry of growing quails. Treatment groups were: (1) T1: control diet; (2) T2: basal diet + 5 g BC; (3) T3: basal diet + 0...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Chengfei Huang, Dongli Ma, Jianjun Zang, Bo Zhang, Brian Sun, Ling Liu, Shuai Zhang
Objective: This study was conducted to evaluate the effect of keratinase (KE) on the apparent ileal digestibility (AID) and standardized ileal digestibility (SID) of amino acids (AA) in rice bran, cottonseed meal (CSM), rapeseed meal (RSM), corn distillers dried grains with solubles (DDGS), and peanut meal (PNM). Methods: Twelve crossbred barrows (Duroc × Landrace × Yorkshire, 50.5 ± 1.4 kg BW) fitted with T-cannulas at the terminal ileum were allotted to a 12 × 6 Youden Square design with 12 diets and 6 periods...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Moataz Fathi, Mohamed El-Zarei, Ibrahim H Al-Homidan, Osama Abou-Emera
Objective: Recently, there has been an increasing interest in conservation of native genetic resources of chicken on the worldwide basis. Most of the native chicken breeds are threatened by extinction or crossing with ecotypes. Methods: Six Saudi native chicken breeds including black naked neck, brown frizzled, black, black barred, brown and gray were used in the current study. The aim of the current study was to evaluated genetic diversity, relationship and population structure of Saudi native chicken breeds based on 20 microsatellite markers...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Muhamad Hazim Nazli, Ridzwan Abdul Halim, Amin Mahir Abdullah, Ghazali Husin, Anjas Asmara Samsudin
Objective: Apart from various climatic differences, corn harvest stage and varieties are two major factors that can influence the yield and quality of corn silage in the tropics. A study was conducted to determine the optimum harvest stage of four corn varieties for tropical silage production in Malaysia. Methods: Using a split plot design, corn was harvested at four growth stages; silking, milk, dough and dent stages using four varieties; Sweet Corn hybrid 926, Suwan, Breeding Test Line (BTL) 1 and BTL 2...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Ki Yong Chung, Seung Hwan Lee, Soo Hyun Cho, Eung Gi Kwon, Jun Heon Lee
Hanwoo cattle are an important food source in Korea and their supply can have a major impact on meat availability for Korean consumers. The Hanwoo population was 1.8 million head in 2005 and gradually increased to 2.6 million in 2015. Per capita beef consumption has also increased, to 11.6 kg per year in 2015, and is expected to continue to increase. Because intramuscular fat (IMF) percentage is a critical contributor to meat quality, Hanwoo cattle are fed a high-energy corn-based diet for long fattening periods...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Seung Ju Park, Seok-Hyeon Beak, Da Jin Sol Jung, Sang Yeob Kim, In Hyuk Jeong, Min Yu Piao, Hyeok Joong Kang, Dilla Mareistia Fassah, Sang Weon Na, Seon Pil Yoo, Myunggi Baik
Intramuscular fat (IMF) content in skeletal muscle including the longissimus dorsi muscle (LM), also known as marbling fat, is one of the most important factors determining beef quality in several countries including Korea, Japan, Australia and the United States. Genetics and breed, management, and nutrition affect IMF deposition. Japanese Black cattle breed has the highest IMF content in the world, and Korean cattle (also called Hanwoo) the second highest. Here, we review results of research on genetic factors (breed and sex differences and heritability) that affect IMF deposition...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Metha Wanapat, Chaowarit Mapato
Objective: As the climate changes, it influences ruminant's feed intake, nutrient digestibility, rumen methane production and emission. This experiment aimed to evaluate the effect of feeding Sweet grass (Pennisetum purpureum cv. Mahasarakham) as a new source of good quality forage to improve feed utilization efficiency and to mitigate rumen methane production and emission. Methods: Four, growing crossbred of Holstein Friesian heifers, 14 months old, were arranged in a 4 x 4 Latin square design to receive four dietary treatments...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Jingbo Liu, S C Cao, J Liu, J Pu, L Chen, H F Zhang
Objective: This study was conducted to evaluate the effect of dietary energy and lipase supplementation on growth performance, nutrient digestibility, serum profiles, intestinal morphology, small intestinal digestive enzyme activities, biochemical index of intestinal development and noxious gas emission in weaning pigs. Methods: A total of 240 weaning pigs [(Yorkshire×Landrace)×Duroc)] with an average BW of 7.3 ± 0.12 kg were used in this 28-d experiment. Weaning pigs were randomly allocated to 4 dietary treatments in a 2 × 2 factorial arrangement with 2 levels of energy (NE = 2,470 kcal/kg for low energy diet and 2,545 kcal/kg for basal diet) and 2 levels of lipase (0 and 1...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Waroon Khota, Suradej Pholsen, David Higgs, Yimin Cai
Objective: In order to improve fermentation quality of silage, the comparative analysis of fermentation characteristics and in vitro digestibility of tropical grasses silage prepared with Acremonium and Tricoderma producing cellulases were studied in Thailand. Methods: Fresh and wilted Guinea grass and Napier grass silages were prepared with Acremonium cellulase (AC) and Trichoderma cellulase (TC) at 0, 0.0025, 0.005 and 0.01% on a fresh matter (FM), and their fermentation quality, chemical composition and in vitro digestibility were analyzed...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Rattikan Suwannasing, Monchai Duangjinda, Wuttigrai Boonkum, Rutjawate Taharnklaew, Komson Tuangsithtanon
Objective: The purpose of this study was to investigate a single step genome-wide association study (ssGWAS) for identifying genomic regions affecting on reproduction trait in Landrace and Large White pigs. Methods: The traits included the number of pigs weaned per sow per year (PWSY), the number of litters per sow per year (LSY), pigs weaned per litters (PWL), born alive per litters (BAL), non-productive day (NPD) and wean to conception interval per litters (W2CL)...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Kaixuan Li, Jiangshui Wang, Dong Yuan, Ruoxi Zhao, Yongxia Wang, Xiu An Zhan
Objective: This study was conducted with the objectives to examine the impacts of inorganic selenium (Se) and different types and levels of organic selenium on the serum and tissues Se status and antioxidant capacity in broiler breeders. Methods: Five hundred and forty 48-wk-old Lingnan Yellow broiler breeders were randomly assigned to 6 dietary treatments, provided same basal diet (0.04mg/kg of Se) with 0.15 mg/kg, or 0.30 mg/kg of Se from sodium selenite (SS) or from selenium-enriched yeast (SY) or from selenomenthionine (SM)...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
John Michael Gonzalez, Kelsey Jean Phelps
Meat quality is a very difficult term to define because it means different things to different people. When purchasing beef, consumers in the United States are likely to consider color, marbling level, subcutaneous fat trim, or cut thickness when determining the quality of beef. Once consumers have consumed the product, meat quality becomes exponentially more difficult to define due to the subjective nature of this term. Traditionally, tenderness, juiciness, and flavor have been considered the three most important factors that determine the palatability of beef...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Chhaiden Heak, Peerapol Sukon, Pairat Sornplang
Objective: This meta-analysis was conducted to evaluate the overall effect of direct-fed microbial (DFM) or probiotic supplementation on the log concentrations of culturable gut microbiota in broiler chickens. Methods: Relevant studies were collected from PubMed, SCOPUS, Poultry Science Journal, and Google Scholar. The studies included controlled trials using DFM supplementation in broiler chickens and reporting log concentrations of the culturable gut microbiota...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Amel Benatallah, Faissal Ghozlane, Michel Marie
Objective: This study was conducted to evaluate the effect of water restriction (WR) on physiological and blood parameters on lactating dairy cows reared under Mediterranean climate. Methods: The trial lasted 16 days preceded by two weeks of adaptation to the experimental condition in spring 2014 on 6 dairy cows in mid-lactation. These cows were watered at will for 4 days (W100) (hydration period), then split into 2 groups, one group has received 25% and the other 50% of water compared to their mean water consumption during the hydration period; then rehydrated for 4 days...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Dwi Nur Happy Hariyono, Dyah Maharani, Sunghyun Cho, Prabuddha Manjula, Dongwon Seo, Nuri Choi, Jafendi Hasoloan Purba Sidadolog, Jun-Heon Lee
Objective: At least eight local duck breeds have been recognized and documented as national germplasm of Indonesia so far. It is necessary to genetically characterize the local duck breeds for aiding conservation and future improvement strategies. Thus, this study was carried out to assess genetic diversity and phylogenetic relationship of eight local duck populations of Indonesia using microsatellite markers. Methods: In total, 240 individuals (30 individuals each population) from Alabio (AL), Bayang (BY), Magelang (MG), Mojosari (MJ), Pegagan (PG), Pitalah (PT), Rambon (RM) and Turi (TR) duck populations were genotyped using 22 microsatellite markers...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Michael W Pfaffl, Irmgard Riedmaier-Sprenzel
The misuse of anabolic hormones or illegal drugs is a ubiquitous problem in animal husbandry and also in food safety. The ban on growth promotants in food producing animals in the European Union is well controlled. However, application regimens that are difficult to detect persist, including newly designed anabolic drugs and complex hormone cocktails. Therefore identification of molecular endogenous biomarkers which are based on the physiological response after the illicit treatment has become a focus of detection methods...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Ra Ham Lee, Seokhyun Lee, Yu Ra Kim, Hak-Kyo Lee, Ki-Duk Song
Objective: A disintegrin and metallopeptidase with thrombospondin motifs type 8 (ADAMTS8) is crucial for diverse physiological processes, such as inflammation, tissue morphogenesis, and tumorigenesis. The chicken ADAMTS8 (chADAMTS8) gene was differentially expressed in the kidney following exposure to different calcium concentrations, suggesting a pathological role of this protein in metabolic diseases. We aimed to examine the molecular characteristics of chADAMTS8 and analyze the gene-expression differences in response to Toll-like receptor 3 (TLR3) stimulation...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Thanaporn- Bunmee, Niraporn Chaiwang, Chonlathee Kaewkot, Sanchai Jaturasitha
Thailand is a country of Native beef cattle resource farming. It has undergone rapid social and economic change in the past decade. Agricultural growth has been maintained by increasing the production of rice and cassava. Changing economic status also provides opportunities for beef cattle producers to meet increasing consumer demand for beef. Finishing beef cattle numbers in Thailand were about 1.0 M head in 2015. Beef produced in Thailand has exclusively been for domestic consumption. Only 1% of Thailand's beef cattle are for the premium market which is based on marbling score, 40% are sold into modern markets that consider muscling of cattle, and the remainder enter traditional markets...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
Shuxiang Wang, Arash Azarfar, YaJing Wang, Zhijun Cao, Quangui Shi, Shengli Li
Objective: This study was conducted to investigate hematological and vasodilator characteristics for high altitude acclimatization in Holstein heifers ascended to high altitude. Methods: Holstein heifers resided at low altitude (LH; Beijing, China 43 meter), and Holstein heifers ascended to high altitude (Lhasa city, Tibet; 3,658 meter) after one year exposure including hypoxia acclimated Holstein heifers (AH; with mean pulmonary arterial pressure mPAP < 41 mmHg) and Holstein heifers affected by high altitude pulmonary hypertension (HAPH; with mPAP > 49 mmHg) and crossbred cattle (CB; Holstein × Tibet cattle) born and resided in Tibet were selected to compare parameters of blood gas, blood cells and vasodilators...
May 31, 2018: Asian-Australasian Journal of Animal Sciences
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