查看更多>>摘要：This study was conducted to investigate the effects of Vicia villosa supplementation to the basal diet of desho grass hay on feed intake, growth performance, and carcass characteristics of the Arsi-Bale sheep. Twenty-four lambs were assigned by stratified randomization based on their initial body weight into six blocks consisting of four lambs per block to four dietary treatments. Desho grass hay was fed free choice to all experimental lambs whereas 0, 150, 300 and 450 g of Vicia villosa was supplemented to animals. The results showed that the daily DM intake and daily body weight gain of experimental sheep showed significant improvement (P < 0.05) with increased level of inclusion of Vicia villosa into the basal ration. It can be concluded that the supplementation of 450 g of Vicia villosa hay to desho grass hay had a positive effect on growth performance and carcass characteristics of Arsi-Bale sheep.
Lindberg, M.Henriksson, M.Jacobsson, S. BaathLundberg, M. Berglund...
13页
查看更多>>摘要：This study compared use of byproduct-based concentrates and a control feed based on cereal grains and soybean meal in dairy cow diets and evaluated effects on the environment and feed costs. To achieve a nutrient-dense feed ration to dairy cows byproducts are commonly combined with cereal grains and protein-rich feeds such as soybean meal. The present analysis was based on experimental data for high-yielding dairy cows showing that feeding concentrate based on byproducts gives similar milk yield as feeding concentrate based on cereal grains and soybean meal. Evaluation of the different concentrates using life cycle assessment showed that using byproducts required less cropland (-35%), reduced carbon footprint (-20%) and lowered eutrophication potential (-20%) compared with the control. Energy use was higher (+30%), due to the need for drying wet byproducts. Feed costs per kg energy-corrected milk did not differ between the feeds, which is beneficial from a sustainability perspective.
Pedersen, Emma KjersgaardDall, JacobAmdi, CharlotteMadsen, Johannes Gulmann...
6页
查看更多>>摘要：Guanidinoacetic acid (GAA) is a natural precursor for creatine, which is involved in physiological energy generation. Six hundred and ninety-nine weaned pigs (6-30 kg) were fed a basal diet (Diet 1-4, corresponding to four phases) without (CTRL) and with 0.12% GAA supplementation. Pigs in the CTRL group displayed higher (P < 0.05) average daily gain and lower feed conversion ratio, and body weight, during the periods of Diet 1 and 2, compared with GAA pigs. In the period of Diet 3 CTRL pigs tended (P < 0.10) to be heavier than GAA pigs, whereas in the period of Diet 4 GAA pigs tended (P < 0.10) to grow faster than CTRL pigs. Over the entire experimental period CTRL compared with GAA pigs displayed improved feed efficiency (P < 0.05) and tended (P < 0.10) to grow faster. In conclusion, GAA did show minor potential to increase average daily gain in the last part of the weaning phase.
查看更多>>摘要：This study evaluated the influence of feeding strategy and grass/clover silage pre-treatment on pig growth performance and carcass traits. In total, 128 pigs weighing 30-110 kg were fed either a commercial control feed or received silage in a pellet (SP) or in a total mixed ratio (TMR) containing chopped silage (SC) or intensively treated silage (SE). Silage replaced 20% of dietary crude protein content (g/kg). Diet affected weight gain (P = 0.001), with pigs fed the SP diet showing best overall growth performance. Pigs fed the SC diet had the lowest weight gain (P = 0.001), while pigs fed the SE diet performed similarly to those fed the control diet. Carcass weight and dressing percentage differed between the diets (P = 0.016 and P = 0.018), but there was no difference in lean meat content (P = 0.832). The results show satisfactory growth performance and carcass traits, indicating that silage can replace other protein sources in growing/finishing pig diets.
Thangarasu, S.Senthilkumar, G.Selvam, S.Sudeep Kumar, N. K....
12页
查看更多>>摘要：An attempt was made to ascertain the structure, conduct and performance of live small ruminant markets in live animal markets (shandies) in Southern India. Pertaining to the study, data were collected from 300 market functionaries selected through multi-stage random sampling from 30 live animal markets in South India. Suitable statistical analyses were applied to achieve the objectives of the study. The market structure of small ruminants was observed to be 'Atomistically competitive'. The volume of business/number of animals transacted was found to be more or less equal among the market functionaries. The variables, such as age, sex, utility of animal and festival season, were the significant variables in the price determination of small ruminants during their sale in live animal markets. The infrastructure facilities available in selected shandies were inadequate. Necessary recommendations were made to improve the efficiency of marketing of small ruminants.
NSTL
Taylor & Francis