scholarly journals Early emergence of axons and formation of accessory nerve (XI) in avian embryos

2016 ◽  
Vol 1 (3) ◽  
pp. 654-659 ◽  
Author(s):  
Ziaul Haque ◽  
Azimul Haque ◽  
Qin Pu ◽  
Ruijin Huang
Keyword(s):  
Weight Gain ◽  
Nitrogen Balance ◽  
Control Diet ◽  
Research Work ◽  
Nitrogen Retention ◽  
Live Weight ◽  
The Body ◽  
Control Group ◽  
Feed Conversion ◽  
Feeding Effect

A research work was undertaken to evaluate the feeding effect of tree forages on performance of growing sheep. Twenty growing sheep (in 4 groups) were fed three different tree forage diets. Tree forages Melia azardirachta, Leucaena leucocephala and Artocarpus heterophyllus were supplied in three treatments except one consisted no tree forages which was considered as control. There were significant (p<0.05) differences among the animal groups in terms of total DM and ME intake, although there were no significant differences in the digestibility of DM, OM, CP and ADF. Feeding of tree forages had significant (p<0.05) effect on live weight gain of sheep. Animals fed with tree forage based diets significantly increased weight gain (60.70 and 50.70 g/d for L. leucocephala and A. heterophyllus, respectively) compared to that (45.66 g/d) of control group fed with silage. Feed conversion efficiency (kg feed/kg gain) also showed that animals fed with tree forage of L. leucocephala and M. azardirachta based diets were having significantly (p<0.05) higher efficiency (11.33 and 11.47, respectively) compared to those of A. heterophyllus and control diet (13.77 and 13.33, respectively). The results of nitrogen balance of M. azardirachta and L. leucocephala tree forage had significantly (p<0.05) positive effect on the nitrogen retention in the body of the animals. Intake of all the tree forages was not similar which indicated that all of them were not accepted to the lamb in same level. So, diets with tree forages of L. leucocephala resulted better in terms of weight gain, digestibility and nitrogen balance compared to A. heterophyllu, M. azardirachta and silage (control).Asian J. Med. Biol. Res. December 2015, 1(3): 654-659

scholarly journals Effect of feeding tree forages on productive performances on growing sheep

2016 ◽  
Vol 1 (3) ◽  
pp. 648-653 ◽  
Author(s):  
Md Zillur Rahman ◽  
Md Yousuf Ali ◽  
Md Azharul Islam Talukder ◽  
Md Ershaduzzaman ◽  
Most Sumona Akter
Keyword(s):  
Weight Gain ◽  
Nitrogen Balance ◽  
Control Diet ◽  
Research Work ◽  
Nitrogen Retention ◽  
Live Weight ◽  
The Body ◽  
Control Group ◽  
Feed Conversion ◽  
Feeding Effect

A research work was undertaken to evaluate the feeding effect of tree forages on performance of growing sheep. Twenty growing sheep (in 4 groups) were fed three different tree forage diets. Tree forages Melia azardirachta, Leucaena leucocephala and Artocarpus heterophyllus were supplied in three treatments except one consisted no tree forages which was considered as control. There were significant (p<0.05) differences among the animal groups in terms of total DM and ME intake, although there were no significant differences in the digestibility of DM, OM, CP and ADF. Feeding of tree forages had significant (p<0.05) effect on live weight gain of sheep. Animals fed with tree forage based diets significantly increased weight gain (60.70 and 50.70 g/d for L. leucocephala and A. heterophyllus, respectively) compared to that (45.66 g/d) of control group fed with silage. Feed conversion efficiency (kg feed/kg gain) also showed that animals fed with tree forage of L. leucocephala and M. azardirachta based diets were having significantly (p<0.05) higher efficiency (11.33 and 11.47, respectively) compared to those of A. heterophyllus and control diet (13.77 and 13.33, respectively). The results of nitrogen balance of M. azardirachta and L. leucocephala tree forage had significantly (p<0.05) positive effect on the nitrogen retention in the body of the animals. Intake of all the tree forages was not similar which indicated that all of them were not accepted to the lamb in same level. So, diets with tree forages of L. leucocephala resulted better in terms of weight gain, digestibility and nitrogen balance compared to A. heterophyllu, M. azardirachta and silage (control).Asian J. Med. Biol. Res. December 2015, 1(3): 648-653

scholarly journals Effect of tree forage supplementation on growth performance of goats

2015 ◽  
Vol 1 (2) ◽  
pp. 209-215
Author(s):  
Md Zillur Rahman ◽  
Md Ali Akbar ◽  
Md Abul Hossain ◽  
Md Yousuf Ali
Keyword(s):  
Weight Gain ◽  
Nitrogen Balance ◽  
Control Diet ◽  
Nitrogen Retention ◽  
Live Weight ◽  
Control Group ◽  
Feed Conversion ◽  
Total N ◽  
Mean Values ◽  
Growing Goats

An experiment with 25 growing goats (in 5 groups) were fed four different tree forage based diets (B,C,D,E) and control A showed that there were significant (p<0.05) differences in DM , ME and DCP intakes. Although there were no significant differences in the digestibility of DM, OM, CP and ADF but intake of these nutrients were significantly (p<0.05) differed among the treatments. There were no significant differences in the digestibility of diets having different forages but they were significantly higher than that of grass based control diet. Feeding of tree forages had significant (p<0.05) effect on live weight gain of goats. Animals fed tree forage based diets significantly (p<0.05) increased weight gain (60.03, 59.10, 57.75 and 55.57 g/d for Sesbania grandiflora, Leucaena leucocephala, Erythrina orientalis and Morus alba, respectively) compared to that of control group (39.25 g/d) . However, there were no significant differences in weight gain of the animals fed different tree forage based diets. Feed conversion efficiency (kg feed/kg gain) also showed that animals fed tree forage based diets presented significantly (p<0.01) higher efficiency (11.74, 12.05, 12.21 and 12.02) for L. leucocephala, E. orientalis, S. grandiflora and M. alba compared to that (16.00) of fed control diet. Nitrogen balance trial showed that there were significant (p<0.05) differences among the mean values in terms of total N intake (g/d), nitrogen retention (%) and nitrogen balance (g/d). It may be concluded that supplementation of diets with tree forages resulted in better weight gain, digestibility and nitrogen balance compared to green grass. So, the diets of goats may be supplemented with tree forages of S. grandiflora, L. leucocephala, E. orientalis and M. alba for improved growth performance.Asian J. Med. Biol. Res. June 2015, 1(2): 209-215

Experiments on the nutrition of the dairy heifer: VII. Observations on the effect of the energy intake on the utilization of protein in growth and in lactation

1969 ◽  
Vol 72 (1) ◽  
pp. 13-30 ◽  
Author(s):  
W. H. Broster ◽  
Valerie J. Tuck ◽  
T. Smith ◽  
V. W. Johnson
Keyword(s):  
Weight Gain ◽  
Nitrogen Balance ◽  
Crude Protein ◽  
Nitrogen Loss ◽  
Latin Square ◽  
Nitrogen Retention ◽  
Live Weight ◽  
The Body ◽  
Live Weight Gain ◽  
Digestible Crude Protein

SUMMARYEight feeding trials on cattle showed that the response in live-weight gain was curvilinear when protein or energy level was varied independently in rations based on poor quality roughages to which cereals and groundnut were variously added to give a range of protein and energy intakes. Live-weight gain was increased by 0·12 lb/day for each 0·1 lb additional digestible crude protein/day at levels of intake below 0·7 lb/day and by 0·03 lb/day at higher levels. It was increased by 0·4 lb/day for each additional 0·1 lb starch equivalent daily/100 lb live weight at total intakes below 0·9 lb daily/ 100 lb and by 0·2 lb/day at higher levels. Over the range 0·5–2·0 lb digestible crude protein daily and 0·7–1·2 lb starch equivalent daily/100 lb live weight the effects of these nutrients were additive.A Latin square nitrogen balance trial demonstrated that a portion of the nitrogen from a protein supplement was retained in the body despite the excretion of the greater part of it in the urine and a further part in the faeces. Nitrogen retention was increased by a supplement of readily available energy through a decrease in urinary nitrogen loss. Nitrogen balance was not increased by a supplement of a fibrous energy source because this induced an increase in faecal nitrogen loss.In a further feeding trial milk yield was found to be affected in a similar manner to growth. At a yield of 30 lb/day the response per lb starch equivalent added to the diet was 0·5 lb milk including 0·05 lb solids not fat and to an increase of 0·1 lb digestible crude protein daily it was 0·25 lb milk including 0·025 lb solids not fat.

scholarly journals Response of finishing broiler chickens fed three energy/protein combinations at Fixed E:P ratio

2021 ◽  
Vol 30 (2) ◽  
pp. 185-191
Author(s):  
O. M. O. Idowu ◽  
D. Eruvbetine ◽  
O. O. Oduguwa ◽  
A. M. Bamgbose ◽  
S. S. Abiola
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Control Diet ◽  
Nitrogen Retention ◽  
Live Weight ◽  
Metabolizable Energy ◽  
Utilization Efficiency ◽  
Feed Conversion ◽  
Protein Density

A feeding experiment was conducted to investigate the response of finishing broiler chicken to diets containing three metabolizable energy (ME)/crude protein (CP) combinations (3203.76 ME vs 19.90 %CP, 2884.15 ME vs 18.10 %CP and 2566.42 ME vs 18.10 %CP) at fixed ME:CP ratio of 160:1. A total of 126 four weeks old broiler chickens were randomly allotted to three dietary treatments replicated thrice. The final live weight, weight gain, feed intake, feed conversion and PER were generally higher in the birds fed the control diet (3203.76 ME vs 19.90 %CP). There were significant (P<0.05) differences among treatments in terms of final live weight, protein intake, energy intake, CP: Gain and ME:Gain, while weight gain, feed intake, feed conversion ratio and percentage mortality were statistically the same (P>0.05) across the treatments. Cost per kg feed decreased as the energy and the protein density of the diets decreased while the cost per kg weight gain decreased with increase in energy and protein density. The digestibility percentages showed a decreasing (P<0.05) trend while nitrogen retention increased with decrease in energy-protein density of the diets. Values for the haematological parameters and blood chemistry were significantly (P<0.01) higher in birds fed control diet and the values decreased with decreased levels of dietary energy and protein. The results suggest that when both energy and protein density of broiler finisher diet are reduced at fixed E:P ratio the feed intake would increase while the feed utilization efficiency decreases.

scholarly journals Research on the Influence of the Light and Sexing on Growth Performance and Slaughter Results at Young Quails from Mixed Baloteşti Population of Eggs-Meat

2017 ◽  
Vol 74 (1) ◽  
pp. 15
Author(s):  
Lucian IONITA ◽  
Elena POPESCU-MICLOSANU ◽  
George NICA ◽  
Cornel Octavian PANA
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Conversion Rate ◽  
Live Weight ◽  
Control Group ◽  
Average Weight ◽  
Feed Conversion ◽  
Feed Conversion Rate ◽  
Average Weight Gain ◽  
Experimental Group

The purposes of determining the influence of the light and sexing on growth performance and slaughter results atyoung quails from Balotesti population, was organized an experiment on 150 quails, betwen age of 28 and 70 days. The chicks were divided into two groups (control and experimental), and growth and slaughter performance were determined separately by sex. Have studied 2 lighting programs, a program of continous lighting with photoperiod duration of 16 hours (16 L + 8 N, control group) and a program with lighting with asymetric hours intervals with photoperiod duration of 16 hours (10L+2N+6L+6N, experimental group).Males and females from the experimental group were recorded average performance of growth high during the period 28 - 70 days. Live weight at age of 70 days was higher with 7.54 %, average weight gain was higher with 14.86 % and feed conversion rate was lower with 13.51 % at males from experimental group compared to males from the control group. Also, the live weight at the age of 70 days was higher with 18.09 %; average weight gain was higher with 35.12 %, while feed conversion rate was reduced with 30.08 % on females from the experimental group compared to females from the control group.The results of the slaughter at 70 days were superior in the caseof females from the both groups versus males. The average weight of the carcase was higher with 17.53 % in case of the females than that of males from the experimental group, and the carcase yield was 65.37 % at the females and 65.56 % for males. Also, the average weight of the carcase was higher with 5.08 % in case of females compared to that males from the control group, and the carcase yield was 64.20 % to females 66.70 % on males.Superior results recorded in the case of females and males from the experimental group recommended the program of lighting with asymmetric hours intervals in the growth of youth quail. Also, the higher slaughter results recorded in the case of females of the two groups recommended them in the meat production through a broiler of quail that combine advantages in the production of both males and females. 

scholarly journals THE USE OF BIOSTIMULANT FOR INCREASING THE BODY WEIGHT GAIN OF CHICKENS

2020 ◽  
Vol 17 (35) ◽  
pp. 800-812
Author(s):  
Ilgiz DOLININ ◽  
George BAZEKIN ◽  
Evgeny SKOVORODIN ◽  
Almaz SHARIPOV ◽  
Ivan CHUDOV
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Live Weight ◽  
The Body ◽  
New Drugs ◽  
Natural Resistance ◽  
Control Group ◽  
Immunological Parameters

Poultry farming holds a special place in ensuring the products that the consumers demand, it provides the population with essential food products,such as eggs and meat,that contain vital micro and macronutrients, proteins, lipids, and vitamins. Therefore, the issues of rational, economically feasible feeding of meat poultry, namely broiler chickens, are an urgent task. It is also essential to find effective methods of their application in order to correct the natural resistance and immune and biological reactivity of birds. The purpose of this research is to study the effect of the biological stimulant-Nucleostim on the growth and development of chickens, hematological, and immunological parameters of the blood of birds.This Biostimulant is a purified bovine spleen extract containing at least 1 mg / ml of low molecular weight peptides (nucleotides and nucleosides) formed as a result of autolysis, using dry whey and diatomite as fillers. Onthe application ofNucleostim, the gain in live weight of chickens was increased by 9.7%. At the end of the experiment, the livability of the chicks of the experimental group treated with Nucleostimcame up to 88%, compared with the 72% of the control group. The use of biostimulant had a stimulating effect on the liver of chickens confirmed by the research results presented in the article, as well as contributed to the development of the thymus in the setting of general dystrophy. Thus, it improved chicklivability and increased body weight gain. The biological stimulant-Nucleostim as an adaptogenic, anabolic, and immunostimulatory agent is promising for finding new drugs that improve the health and productivity of poultry.

A note on the utilization of urea by Sudan desert sheep

1971 ◽  
Vol 13 (1) ◽  
pp. 201-204
Author(s):  
H. M. Hassan ◽  
A. M. S. Mukhtar
Keyword(s):  
Weight Gain ◽  
Crude Protein ◽  
Nitrogen Retention ◽  
Young Male ◽  
Live Weight ◽  
Protein Digestibility ◽  
Feed Conversion ◽  
Crude Fibre ◽  
Live Weight Gain ◽  
Nitrogen Free Extract

SUMMARYSixty-four young male Sudan desert lambs were group-fed for 87 days on four diets, all containing approximately 10% crude protein. The four diets contained 0, 1·3, 1·7 and 2·7% urea, respectively.Average daily gains were 0·15, 0·14, 0·14 and 0·13 kg; feed conversion ratios (kg of feed required to produce 1 kg live-weight gain) were 7·26, 8·14, 8·92 and 7·92; dressing percentages were 43·6, 42·1, 44·1 and 42·3.Digestibility trials with lambs fed on diets with 0 or 2·7% urea gave higher digestibility coefficients for crude fibre and nitrogen-free extract for the urea-supplemented lambs. Crude protein digestibility and nitrogen retention values were lower for urea-supplemented lambs.

scholarly journals Effect of raw and cooked mucuna seed meal based diets on the performance, nutrient digestibility and haematology of weaned rabbits

2021 ◽  
Vol 33 (2) ◽  
pp. 209-215
Author(s):  
A. A. Taiwo ◽  
A. D. Adejuyigbe ◽  
E. O. Talabi ◽  
G. Okumakuma ◽  
E. A. Adebowale
Keyword(s):  
Weight Gain ◽  
Blood Cell ◽  
Control Diet ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Seed Meal ◽  
Feed Conversion ◽  
Dietary Treatments

A study was conducted for eight weeks to determine the effects of raw and cooked mucuna seed meal (MSM) based diets on the performance and haematological characteristics of cross-bred weaned rabbits. Three experimental diets were formulated to contain: 0% MSM (control diet A), X raw MSM (diet B) and 20% cooked MSM (diet C). Twelve cross-bred weaned rabbits with mean initial live-weight of about 550 g were randomly assigned to three dietary treatments. The experimental design was completely randomized arrangement. The feed intakes (115.12, 114.44, 116.15g/day) and weight gains (17.19, 12.72, 14.28g/day) for diets A, B and C respectively were similar (P>0.05) for the three treatments. Rabbits fed the control diet A had the best (P<0.05) feed conversion ratio (6.68). The packed cell volume (PCV), haemoglobin (HB), red blood cell (RBC) and white blood cell (WBC) values obtained for the three treatments were not statistically different (P>0.05) from one another. The HB, RBC, WBC values of rabbits fed on 20% cooked MSM based diet had comparable values to those on the control diet. Based on the weight gain and the haematology, 20% cooked mucuna seed meal can be included in the diet of weaned rabbits.

scholarly journals THE EFFECT OF FEED RESTRICTION AT THE STARTER PHASE ON PERFORMANCE OF BROILER CHICKENS

2021 ◽  
Vol 34 (1) ◽  
pp. 69-76
Author(s):  
M Tion ◽  
M. T. Orga ◽  
I. A. Adeka
Keyword(s):  
Weight Gain ◽  
Mortality Rate ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Live Weight ◽  
Feed Restriction ◽  
Control Group ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Ad Libitum

Two hundred and twenty five day old straight run broiler chicks were utilized in completely randomized design to test the effect of restricting feed intake of four groups of chicks to 92.5% 85.0%, 77.5% and 70.0% of the unrestricted (control) group in the starter phase and following adlibitum feeding for all groups in the finisher phase. The treatments were simply designated as A, B, C, D and E. The starter phase in which the restriction was carried out lasted 28 days and the finisher phase 42 days. Parameters evaluated during the starter and finisher phases included; growth rate, feed conversion ration and mortality rate. Results show gain in weight among all groups while the group fed diet B and the control had comparable weight gain at the starter phase. The percentage weight difference between the control and each of the other dietary groups was: 4.4%, 8.4%, 8.6% and 10.4% for the treatments B, C, D and E respectively. Feed gain ration improved as the level of restriction became stricter. Following ad-libitum feeding of all grops at the finisher phase, the feed restricted groups at the starter phase voraciously increased their feed intake, thus, producing comparable performance values with the unrestricted (control) group in weight gain in the 8th week of the study. Although birds in all groups averaged more than 2000g final live weight in 10weeks, significant differences exist between groups that were fed diets C, D, and E that were restricted at the starter phase, an indication that complete compensatory growth was not obtainable. Feed gain ration improved for restricted groups. Mortality rate did not show any trend attributable to levels of feed restriction. This study shows that broiler chicks fed restricted levels of balanced diet at the starter phase but later fed ad-libitum at the finisher phase could attain a finished weight of about 2000g or more at a market age of 10 weeks (70 days) with an improvement in feed gain ration.

scholarly journals Utilization of coconut meal based diets supplemented with lysine by broiler chicken

2021 ◽  
Vol 33 (2) ◽  
pp. 178-185
Author(s):  
F. A. S. Dairo ◽  
B. K. Ogunmodede
Keyword(s):  
Dry Matter ◽  
Control Diet ◽  
Live Weight ◽  
The Body ◽  
Feed Consumption ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Groundnut Cake ◽  
Meal Protein ◽  
Coconut Meal

Coconut meal (CM) was included in a broiler diet to supply 40% of the total groundnut cake protein. The diet was formulated based on the recommendations of a previous study that coconut meal protein can replace 40% of groundnut cake (GNC) in broilers diet. A control diet was formulated containing 22% GNC, the protein of which was replaced by coconut meal protein. Five diets were prepared . The control (Diet A) and 4 others that contained essentially the same proximate composition (Diets B-E) were supplemented with synthetic lysine at 0.30, 0,60, 0.90 and 1.20% dietary levels. 240 broiler chicks were alotted into 5 dietary treatment groups of 3 sub-groupa. Each sub-group contained 16 birds. The dietary lysine content from diets A-E were 1.20, 1.15, 1.45, 1.76 and 2.00% respectively and were fed to the broilers for a period of 56 days. Performance indices, average feed consumption, average body gain, live weight, feed conversion ratio (FCR), protein efficiency ratio (PER) were monitored. The dry matter, protein and ether extractretentions were all equally monitored twice at the 4th and 8th week. Haematological and enzyme assays were investigated  at 4th and 8th week. The average feed consumption and FCR were significantly increased (P<0.05) by the increasing level of lysine supplementation both at the 4th and 8th week. The body gain also decreased significantly (P<0.05) at the 4th and 8th week while the live weight was significantly (P<0.05) better in the control and 0.6% lysine supplementation at the 56th day of the study. The dry matter, nitrogen and other extract retentions significantly decreased (P<0.05) at the 4th and 8th week. The total protein and albumin decreased significantly (P<0.05) at the 4th and 8th week while, creatinine and urea increased with increasing level of lysine supplementation. The serum glutamate amino transaminase and alanine amino transaminase both increased significantly (P<0.05) at the 4th and 8th week. The study indicated that 0.6% lysine supplementation (of diet containing coconut meal contributing 40% protein of the major vegetable protein source) enhance the utilization of the coconut meal by broilers.

Sign in / Sign up

Export Citation Format

Share Document