scholarly journals Performance of some growth promoters on hybrid walking catfish (Clarias batrachus × Clarias gariepinus)

2017 ◽  
Vol 3 (1) ◽  
pp. 103-108
Author(s):  
Md Sirazul Islam ◽  
M Mamnur Rashid ◽  
Mohammad Shamsul Arefin ◽  
Pronab Naha ◽  
Md Rokanuddula
Keyword(s):  
Weight Gain ◽  
Control Diet ◽  
Animal Health ◽  
Clarias Gariepinus ◽  
Survival Rates ◽  
Clarias Batrachus ◽  
Daily Weight Gain ◽  
Growth Promoter ◽  
Average Daily Weight Gain ◽  
Growth Promoters

A study was conducted to determine the efficacy of three most commonly used growth promoters from different pharmaceutical companies on growth performance of hybrid walking catfish (Clarias batrachus × Clarias gariepinus). The experiment was done in the wet laboratory of the Department of Aquaculture, BAU, Mymensingh, with a total of 10 aquaria and 160 fish having mean initial weight of 6.3 ± 0.48 g. The three growth promoters, “Charger gel” from Fishtech (BD) Ltd., “Growth gel” from Advance Agrotech (BD) Ltd. and “Hepaprotect-aqua” from Renata Animal health Ltd., were used in separate nine (9) aquaria at recommended, lower dose and higher dose respectively. One aquarium was used as control (diet without any growth promoter). The fish were fed with paragon nursery floating feed at 20% of body weight in each aquarium for 28 days. Doses of Charger gel were given as 80, 60 and 100 mg/20 g feed/day, that of Growth gel, 0.14, 0.12 and 0.16 ml/20 g feed/day and of Hepaprotect-aqua, 30, 15 and 50 mg/20 g feed/day. Re-circulatory system was used throughout the experimental period. By applying recommended, lower and higher dose of “Charger gel”, mean final weights were found as 23.0, 21.9 and 35.9 g; average daily weight gain as 0.60, 0.56 and 1.06 g and specific growth rate (SGR) as 2.01, 1.93 and 2.70% respectively. For “Growth gel”, mean final weights were found as 22.8, 17.3 and 31.1 g; average daily weight gain as 0.59, 0.39 and 0.88 g and SGR as 1.99, 1.57 and 2.48 % respectively. For “Hepaprotect-aqua”, mean final weights were found as 24.2, 17.5 and 28.2 g; average daily weight gain as 0.64, 0.40 and 0.78 g and SGR as 2.09, 1.58 and 2.32% respectively. In all the cases survival rates were 100%. All the three growth promoters showed better results at their higher doses in comparison to their results in lower and recommended doses. However, in average Charger gel showed the best result than the other two growth promoters. This information on the efficacy study of growth promoters needs to be disseminated to the farmers for improved fish production.Asian J. Med. Biol. Res. March 2017, 3(1): 103-108

scholarly journals The Impacts of Waterproof Insulated Jackets on Lamb Performance on a UK Lowland Farm

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 217
Author(s):  
Eleanor Brooke Collins ◽  
Nicola Blackie
Keyword(s):  
Weight Gain ◽  
Cold Stress ◽  
Morbidity And Mortality ◽  
Daily Weight Gain ◽  
Birth Date ◽  
Body Temperatures ◽  
Average Daily Weight Gain ◽  
Treatment Groups ◽  
Surface Temperatures ◽  
Weight Gains

The majority of lamb losses occur within the first two weeks of life, with cold stress being a major cause of lamb morbidity and mortality. This study investigated the effect of insulating lamb jackets on newborn lambs. One hundred and four newborn lambs were randomly allocated by birth date to two treatment groups, (a) non-jacketed (n = 52) or (b) jacketed (n = 52), for fourteen days after birth. The live weights of lambs were recorded regularly up to 21 days, and average daily weight gains were calculated from these data. For the first two days after recruitment to the study, surface and body temperatures of lambs were also recorded. The jackets significantly increased the lambs’ surface temperatures, providing a warmer microclimate and reduced cold stress for jacketed lambs. There was no significant effect of the insulating jackets on estimated body temperatures, live weights or average daily weight gain of the lambs in this study. There were no detrimental effects of the jackets, and no rejection of lambs occurred.

scholarly journals Optimization of hormonal dose during masculinization of tilapia (Oreochromis niloticus) fry

2012 ◽  
Vol 9 (2) ◽  
pp. 359-364 ◽  
Author(s):  
Z Ferdous ◽  
MM Ali
Keyword(s):  
Weight Gain ◽  
Oreochromis Niloticus ◽  
Fish Growth ◽  
Daily Weight Gain ◽  
Optimum Dose ◽  
Trial Period ◽  
Growth Data ◽  
Average Daily Weight Gain ◽  
Male Population ◽  
Commercial Feed

The experiment was conducted to optimize the dose of 17?-methyl testosterone (MT) during masculinization of tilapia (Oreochromis niloticus) fry. Five treatments were designed with various doses of hormone to find out the most effective one. The treatments were designated as T1 (0 mg MT/kg), T2 (40 mg MT/kg), T3 (50 mg MT/kg), T4 (60 mg MT/kg) and T5 (70 mg MT/kg). MT was administered orally by using nursery feed and Ethanol (as hormone carrier solvents) diet to tilapia fry for 28 days in hapa. After completion of the trial period of 28 days nursing of the experimental fry was continued for further 2 months with commercial feed. At the end of experiment the sex ratio was      determined by examining gonad after dissecting the fish. Growth performance was monitored by recording the morphometric characteristics i.e. weight gain (g), average daily weight gain (g). The analysis of growth data showed significant variation in weight, % weight gain, SGR (% /day) of fish among the different treatments. SGR increases with the increase of hormone dose. The present study demonstrated that all MT receiving treatments showed a significantly (p<0.01) higher male proportion (94.28%) than control (48.57%). The dose of 60 mg MT/kg of feed resulted in maximum male population (94.28%). The result indicated that the optimum dose of MT hormone was 60 mg /kg with a feeding period of 28 days after hatching.   DOI: http://dx.doi.org/10.3329/jbau.v9i2.11052   J. Bangladesh Agril. Univ. 9(2): 359–364, 2011

scholarly journals Influence of gender on carcass yield of twin lambs Blackbelly x Pelibuey at 56 days of age

2016 ◽  
Vol 68 (4) ◽  
pp. 1077-1084
Author(s):  
I. del C. García-Osorio ◽  
J. Oliva-Hernández ◽  
M.M. Osorio-Arce ◽  
G. Torres-Hernández ◽  
J. A. Hinojosa-Cuéllar ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Growth Yield ◽  
Daily Weight Gain ◽  
Longissimus Dorsi ◽  
Average Daily Weight Gain ◽  
Carcass Yield ◽  
Longissimus Dorsi Muscle ◽  
Dorsi Muscle ◽  
Males And Females

ABSTRACT The aim of this study was to determine the influence of gender on pre-weaning growth, yield and weight of primal cuts of the carcass of Blackbelly x Pelibuey lambs. 16 twin lambs were used. The lamb gender was the fixed factor. The variables evaluated were: body weight at birth and at weaning, average daily weight gain, weight and yield of carcass and primal cuts: neck, arm, thorax, abdomen and leg. Gender did not affect (P>0.05) body weight at birth. However, the pre-weaning average daily weight gain and body weight at weaning were affected (P<0.05) by the gender. Hot carcass yield and weight and primal cuts were not affected (P>0.05) by the gender of the lamb. Nevertheless, the area of the Longissimus dorsi muscle and cavity fat were different between males and females (P<0.05) 11.5±0.73cm2 and 198±0.05 g vs 9.3±0.73cm2 and 282±0.05g, respectively. In conclusion, in twin lambs Blackbelly x Pelibuey males had greater average daily weight gain and body weight at weaning than females. Carcass yield and weight and primal cuts were not affected by the gender of the lamb. However, males had greater area of the L. dorsi muscle than females and these in turn had a greater amount of cavity fat than males.

PERFORMANCE AND CARCASS GRADE CHARACTERISTICS OF TURKEYS FED THE GROWTH PROMOTER, AVOPARCIN

1981 ◽  
Vol 61 (4) ◽  
pp. 977-981 ◽  
Author(s):  
S. LEESON ◽  
J. D. SUMMERS
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Weight Gain ◽  
Broiler Chickens ◽  
Control Diet ◽  
Feed Utilization ◽  
Growth Promoter ◽  
Feeding Schedule ◽  
Self Selection ◽  
Selection Of

Two trials were conducted with Nicholas strain turkeys. In trial 1, 300 male poults were reared to 49 days using either initial stages of 'large-turkey' feeding regime, or a situation allowing for diet self-selection of protein and energy. Within these programs, diets were supplemented with 10 ppm avoparcin, while a comparable number of controls received no growth promoter. Avoparcin improved growth rate (P < 0.01) irrespective of age, and improved feed utilization to 35 days of age. This effect was not confounded with the form in which diets were offered. In a second trial a 'broiler-turkey' feeding schedule was used, with birds slaughtered at 88 days. Diet treatments consisted of a control diet containing 33 ppm robenz and test diets containing either 33 ppm robenz + 10 ppm avoparcin or 10 ppm avoparcin alone. Avoparcin improved weight gain (P < 0.05) irrespective of coccidiostat inclusion. Feed utilization and carcass grades were not influenced by diet. The 7% improvement in body weight noted here with avoparcin was substantially greater than that previously observed with broiler chickens.

West African dwarf goats utilized bitter leaf (Vernonia amygdalina) meal as feed supplement

2020 ◽  
Vol 44 (5) ◽  
pp. 250-256
Author(s):  
A. O. Olosunde ◽  
S. M. Odeyinka
Keyword(s):  
Control Diet ◽  
West African ◽  
Daily Weight Gain ◽  
Feed Supplement ◽  
Vernonia Amygdalina ◽  
Average Daily Weight Gain ◽  
West African Dwarf ◽  
Randomized Design ◽  
Digestible Organic Matter ◽  
Completely Randomized Design

This studywas carried out to determine the utilization and the optimumlevel of offer of bitter leaf (Vernonia amygdalina) meal (BLM) by West African Dwarf (WAD) goats. In a 20-week trial, twenty four WAD goats of both sexes, 5-7 months old, were randomly allotted to four treatments of graded levels of BLM(0% BLM(Control diet), 15% BLM, 30% BLMand 45% BLMdiets) in a completely randomized design to determine the utilization of bitter leafmeal as feed for goats. The dietswere used as supplements to a basal ration of Panicummaximum. Two digestibility trials were carried out. The digestible ether extract intake and digestible organic matter of goats on 0% BLM were significantly (P<0.05) higher than the values obtained for goats on bitter leaf meal diets. The average daily weight gain (g/day) for goats on 0% BML was significantly (P<0.05) higher than that of others. There were significant (P<0.05) differences in the percentage mortality of the goats fed experimental diets. The percentagemortality of goats on 30% and 45%BLMwere significantly (p<0.05) higher than that of others. It is concluded that bitter leafmeal can be included in the diets of (WAD) goats up to15%without any deleterious effect.

Growth response, economics of production, carcass characteristics and blood profile of weaner rabbits fed ensiled cassava root-leaf blends (ECRLB) as a replacement for maize

2021 ◽  
Vol 48 (1) ◽  
pp. 152-165
Author(s):  
A. T. Amos ◽  
A. O. Oso ◽  
O. J. Durojaiye ◽  
K. Agazue ◽  
A. O. Obanla ◽  
...  
Keyword(s):  
Weight Gain ◽  
Control Diet ◽  
Carcass Characteristics ◽  
Serum Glucose ◽  
Daily Weight Gain ◽  
Average Weight ◽  
Final Body Weight ◽  
Blood Profile ◽  
Cassava Root ◽  
Randomized Design

In a 56-day feeding trial, an experiment was conducted to determine the effects of replacing maize with different levels of ensiled cassava root-leaf blends (ECRLB) on growth, carcass yield, blood profile and economics of production of weaner rabbits. Five experimental diets were formulated and fed to the animals; diet 1= a maize based diet (control diet), diet 2= 30% maize + 10% ECRLB, diet 3 = 20% maize + 20% ECRLB, diet 4= 10 % maize + 30% ECRLB, diet 5= 40% ECRLB. A total number of forty weaner rabbits with an initial average weight of 574.09g±20.03g were randomly allocated to the five dietary treatments in a completely randomized design (CRD) with eight animals per treatment. Data were collected on growth indices, economics of production, carcass characteristics and blood profile Increased (P<0.05) weight gain was observed as the percentage inclusion of ECRLB increased. Rabbits on diet 4 (10 % maize + 30% ECRLB) and 5 (40% ECRLB) recorded the highest (P<0.05) daily weight gain with a corresponding highest (P<0.5) final body weight. Similar FCR were recorded across the treatments Economics of production of animals on diets containing 30 and 40% ECRLB was the best (P<0.05). Carcass indices were not significantly (P>0.0) affected by the experimental diets. Rabbits fed ECRLB recorded lower (P<0.05) serum cholesterol and higher (P<0.05) serum glucose concentration compared to control. In conclusion dietary inclusion of ECRLB up to 40% improved performance and did not show any deleterious effects on all indices examined and is recommended.     Au cours d'un essai d'alimentation de 56 jours, une expérience a été menée pour déterminer les effets du remplacement du maïs par différents niveaux de mélanges racines-feuilles de manioc ensilées (le 'ECRLB) sur la croissance, le rendement de carcasses, le profil sanguin et l'économie de la production de lapins sevrés. Cinq régimes expérimentaux ont été formulés et nourris aux animaux ; régime 1= régime à base de maïs (régime de contrôle), régime 2= 30% maïs + 10% ECRLB, régime 3 = 20% maïs + 20% ECRLB, régime 4= 10% maïs + 30% ECRLB, régime 5= 40% ECRLB. Un nombre total de quarante lapins sevrés d'un poids moyen initial de 574,09 g±20,03 g ont été attribués au hasard aux cinq traitements diététiques dans une conception complètement randomisée (CRD) avec huit animaux par traitement. Des données ont été recueillies sur les indices de croissance, l'économie de la production, les caractéristiques de la carcasse et le profil sanguin. Le gain de poids accru (P<0,05) a été observé à mesure que l'inclusion en pourcentage de l'ECRLB augmentait. Les lapins de l'alimentation 4 (10 % de maïs + 30 % d'ECRLB) et 5 (40 % d'ECRLB) ont enregistré le gain de poids quotidien le plus élevé (P<0,05) avec un poids corporel final correspondant le plus élevé (P<0,5). Les 'FCR' similaires ont été enregistrés à travers les traitements Économie de la production d'animaux sur les régimes contenant 30 et 40% ECRLB a été le meilleur (P<0,05). Les Indices carcasse n'étaient pas significativement (P>0,0) affectés par les régimes expérimentaux. Les lapins nourris à l'ECRLB ont enregistré un taux de cholestérol sérique inférieur (P<0,05) et une concentration plus élevée de glucose sérique (P<0,05) par rapport au contrôle. En conclusion, l'inclusion alimentaire de l'ECRLB jusqu'à 40 % a amélioré les performances et n'a pas montré d'effets délétères sur tous les indices examinés et est recommandée.

scholarly journals The dynamics of changes in selected parameters in relation to different air temperature in the farrowing house for sows

2008 ◽  
Vol 53 (No. 5) ◽  
pp. 195-203 ◽  
Author(s):  
S. Odehnalová ◽  
A. Vinkler ◽  
P. Novák ◽  
J. Drábek
Keyword(s):  
Weight Gain ◽  
Air Temperature ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Raw Data ◽  
Mild Winter ◽  
Housing Environment ◽  
Lactating Sows

The purpose of this study was to analyse the influence of different external air temperature on changes in the air temperature of housing environment in the farrowing house for sows and consequent changes in selected parameters of performance in purebred Landrace sows and gilts. Raw data were analysed for 236 litters. The litters were born from October 2004 to March 2006. Air temperature in the farrowing house was monitored in the sow’s living zone and was closely related to changes in external air temperature (<I>P</I> < 0.01). At the optimal internal temperatures for lactating sows (16–22°C) during mild winter the lowest incidence of stillbirths (9.92%) was detected, whereas at high internal temperatures (above 28°C) the incidence of stillbirths was 11.32% (<I>P</I> < 0.01). The lowest average daily weight gain was recorded during mild winter (<I>P</I> < 0.05).

Average daily weight gain of Iberian fattening pigs when grazing natural resources

2011 ◽  
Vol 137 (1-3) ◽  
pp. 292-295 ◽  
Author(s):  
Vicente Rodríguez-Estévez ◽  
Manuel Sánchez-Rodríguez ◽  
Antón R. García ◽  
A. Gustavo Gómez-Castro
Keyword(s):  
Weight Gain ◽  
Natural Resources ◽  
Daily Weight Gain ◽  
Average Daily Weight Gain ◽  
Fattening Pigs

scholarly journals A simple and fast sampling method for chemical analyses and densitometry of bones through rib biopsies in cattle

2017 ◽  
Vol 37 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Pedro Malafaia ◽  
Yury T.G. Salcedo ◽  
Ricardo A.R. Uscategui ◽  
Vinícius C. Souza ◽  
Diogo Fleury A. Costa ◽  
...  
Keyword(s):  
Weight Gain ◽  
Chemical Analysis ◽  
Dry Matter ◽  
Phosphorus Deficiency ◽  
Postoperative Recovery ◽  
Dry Matter Intake ◽  
Daily Weight Gain ◽  
Control Group ◽  
Average Daily Weight Gain ◽  
Simple Method

ABSTRACT: We developed and evaluated a fast and simple method to obtain suitable bone samples for densitometry and chemical analysis through biopsies of the 12th rib of cattle. The postoperative recovery, dry matter intake (DMI) and average daily weight gain (ADG) was evaluated in 36 Nellore steers, nine of which were randomly selected for the control group and 27 others were rib biopsied. Every 30 days, rib biopsy was performed in nine steers, using a corded-electric pistol-grip drill coupled with a hole saw of a 3mm diameter pilot drill bit. This rib biopsy technique provided a suitable sample obtained in a fast way and allowed the surgeon to work alone with the animal slightly sedated and restrained in the crush. Dry matter intake (DMI) was not affected in biopsied animals. At the end of the experimental period (116 days) the average daily weight gain (ADG) was similar in the steers biopsied or not. The described method provided rib samples from cattle suitable for densitometry and chemical analysis of bone tissue without effects on health and performance. This information could greatly increase the accuracy for the diagnosis of phosphorus deficiency in cattle raised on pasture and allow the evaluation of bone metabolism in experimental animals.

Sign in / Sign up

Export Citation Format

Share Document