 |
 หัวเรื่อง:ระดับที่เหมาะสมของกรดไขมันที่จำเป็นสำหรับการเจริญเติบโตและการแลกเนื้อของปลาดุกลูกผสม ผู้เขียน: วิมล จันทรโรทัย, พิศมัย สมสืบ สื่อสิ่งพิมพ์:pdf AbstractHybrid Clarias catfish (Clarias macrocephalus x Clarias gariepinus) with individual weight of 0.47 g were kept in 18, 80L glass aquaria at a stocking rate of 20 fish per aquarium. Three replicates of fish were fed each of six isonitrogenous (40%) and isocaloric diets (3.2 kcal/g) containing ?6 and ?3 essential fatty acids (EFA) at inclusion levels of 0/0, 0/2.0, 0.5/1.5, 1.0/1.0, 1.5/0.5 and 2.0/0 g/g (diets 1-6 respectively). The diets were fed to satiation twice daily for 12 weeks to the fish for the determination of optimum levels of EFA for growth and feed conversion of hybrid Clarias catfish. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Milk Production with a Particular Reference to Milk Essential Fatty Acids of Lactating Cows under Grazing and Indoor Feeding Conditions) ผู้เขียน:Ratchanee Bourapa, Sayan Tudri,  ดร.จำเริญ เที่ยงธรรม, รองศาสตราจารย์ , Somchai Anusoenponpue, Soar Siwichai, ดร.สมเกียรติ ประสานพานิช, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractAn experiment was conducted to study the milk quality of dairy cattle under conditions of group grazing and loose housing on high quality forage intake. Eight crossbred cows (93% Holstein and 7% Bos indicus) all in their second to fourth lactation and at 100–120 d in the mid-late period of lactation were divided equally into two groups of four cows each under a pair comparison design. The first group was allowed free grazing on pasture consisting mainly of Guinea grass using a rotational grazing procedure. The second group was kept in a shaded cow shed and fed cut-and-carried pasture from an equal-sized area of the same pasture grazed by the first group. Both groups were supplemented with Leucaena leucocephala at 3%, based on the intake requirement for body weight maintenance and milk production for the 45 d experiment. The daily milk yield was recorded throughout the experiment and weekly milk sampling was evaluated for composition. A composite sample of morning and evening milk was analyzed for the percentages of milk fat, protein and lactose, solid not fat (SNF) and essential milk fatty acids—linoleic acid (C18:2n-6; Omega 6), linolenic acid (C18:3n-3; Omega 3) and conjugated linoleic acid (CLA) contents (grams per 100 g of fat) were also analyzed. The results showed that the milk yields, the percentages of milk fat, protein and SNF, and the contents of linolenic acid (C18:3 n-3) and CLA were not significantly different between treatments. However, the lactose percentage and the content of linoleic acid (C18:2 n-6) were significantly different (P < 0.01 and P < 0.05, respectively). The outdoor grazing system significantly increased the higher milk content of linoleic acid. |
 |
 |
 |
 Researcherดร. ณรงค์ฤทธิ์ เมืองใหม่, รองศาสตราจารย์ที่ทำงาน:ภาควิชาชีววิทยาประมง คณะประมง สาขาที่สนใจ:Aquatic biodiversity, Phylogeography , Molecular phylogenetics and evolution, Phycology, Cryptic Diversity, Speciation, Population Genetic, Marine Genomics Resume |
 |