Analysis of growth of broilers with restricting and unrestricting initial body weight in Gompertz-Laird model in different environments

Abstract An experiment was conducted to test the hypothesis that increasing concentrations of dietary Val, Ile, or Trp alone or in combination will alleviate negative effects of excess dietary Leu on N balance of growing pigs. Seventy-two barrows (initial body weight: 33.9 ± 2.6 kg) were housed in metabolism crates and randomly assigned to 1 of 8 diets and 3 blocks with 3 pigs per diet in each block in a 12-d experiment. Treatments were arranged in a 2 × 2 × 2 factorial with the main effects of L-Val (0 or 0.1%), L-Ile (0 or 0.1%), and L-Trp (0 or 0.05%) that were added to a basal diet containing corn and a high-protein corn product (48% crude protein; 5.9% Leu). The basal diet contained 1.00 % standardized ileal digestible (SID) Lys and 171% SID Leu:Lys. Data were analyzed using the PROC MIXED of SAS with concentrations of Val, Ile, and Trp, and all interactions as main effects and replicate as a random effect. No 3-way interactions were observed (Table 1). Results indicated that fecal N output increased if Ile was added to diets without added Val, but that was not the case if Val was added (interaction, P < 0.05). Addition of Ile to diets reduced N retention, but N retention increased with Trp addition to diets without Val addition, but not if Trp was added to diets with added Val (interaction, P < 0.05). The biological value of protein increased if Trp was added to diets without addition of Ile, but if Ile was added, Trp addition did not increase the biological value of protein (interaction, P < 0.05). In conclusion, adding Ile to a diet with excess Leu reduced N retention, but if Trp was added alone or in combination with Ile or Val, N retention increased.

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An exertion of enhance milk yield of native Pabna cattle through using different types of calcium salt of fatty acid

SAARC Journal of Agriculture ◽

10.3329/sja.v15i2.35160 ◽

2018 ◽

Vol 15 (2) ◽

pp. 137-146 ◽

Cited By ~ 1

Author(s):

D Yeasmin ◽

N Islam ◽

NR Sarker ◽

N Huda ◽

A Habib ◽

...

Keyword(s):

Body Weight ◽

Fatty Acid ◽

Milk Yield ◽

Calcium Salt ◽

Bos Indicus ◽

Mustard Oil ◽

Initial Body Weight ◽

Significant Difference ◽

Different Types ◽

Concentrate Mixture

Keeping consideration on increasing quality milk production through addition of conventional fat, an experiment accords CRD design was conducted at Bangladesh Livestock Research Institute, Savar, Dhaka for a period of 30 days including 5 days of digestibility trial. Twenty lactating Pabna cattle of average 250.1 ± 13.64 kg (Bos indicus) of initial body weight with average milk yield of 2.88 ± 0.38 kg were selected and divided into four groups randomly having five cows in each. The imposed treatments were T0, T1, T2, and T3; in where To= German grass + Concentrate mixture without Ca salt of fatty acid + 2.5 % DCP, T1= German grass + Concentrate mixture + 2.5 % soybean based Ca salt of fatty acid, T2= German grass + Concentrate mixture + 2.5 % mustard based Ca salt of fatty acid and T3= German grass + Concentrate mixture + 2.5% palm-oil based Ca salt of fatty acid. The result showed that, calcium salt of fatty acid influenced to increase of milk yield significantly among (P<0.001) the treatments; in where highest yield gained in T1 (3.53 kg d-1) followed by T2, T0 and T3 (3.33, 2.44 and 2.24, respectively). Besides this, all other parameters analytically examined in this experiment i.e. intake, apparent digestibility, gained body weight and chemical composition of milk showed non-significant difference among the treatments. From the analytical value and discussion, it may be suggested that, calcium salt of fatty acid formulated from soybean oil or mustard oil could be used for enhancing better quality milk yield.SAARC J. Agri., 15(2): 137-146 (2017)

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Photoperiod on growth and egg characteristics of the white leghorn chicken

GSC Biological and Pharmaceutical Sciences ◽

10.30574/gscbps.2021.15.1.0101 ◽

2021 ◽

Vol 15 (1) ◽

pp. 151-155

Author(s):

Abdul Muumin Sadick ◽

Iddrisu Mubarik ◽

Dennis Kodzo Awalime ◽

Rebecca Akumbilim ◽

Philip Larweh ◽

...

Keyword(s):

Body Weight ◽

Weight Gain ◽

Feed Intake ◽

Growth Traits ◽

Growth Parameters ◽

Skills Training ◽

Daily Weight Gain ◽

White Leghorn ◽

Initial Body Weight ◽

Final Body Weight

One hundred and twenty (120) 16 weeks old White Leghorn layer breeds were used for the study. The objective of the study was to determine effect of photoperiod on layer chicken. The research was carried out at the Poultry Section of the Animal farm of the Department of Animal Science Education, Akenten Appiah-Menka University of Skills Training and Entrepreneurial Development, Mampong. Four treatments made up of 12 hours of light, 14 hours of light, 16 hours of light and 18 hours of light were used for the study. Each treatment was replicated three times with 10 birds per replicate in a Completely Randomized Design. Birds were exposed equally to common daylight and in the evenings, lights were turned on at specified periods. Growth parameters measured were initial body weight, daily feed intake, daily weight gain and final body weight. Egg traits measured were egg weight, albumen height, yolk color and yolk weight. The data collected were analyzed using General Linear Model procedure of Statistical Analysis System. Results from the study indicated that, varied photoperiod regimes had no significant (P>0.05) effect on initial body weight, daily feed intake but had significant (P<0.05) effect on daily weight gain and final body weight of growth traits. Photoperiod had no significant (P>0.05) effect on the egg characteristics of the white Leghorn layer bird. It was concluded from the study that, increasing photoperiod had no positive effect on growth and egg characteristics of the white Leghorn layer.

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Short communication: Melatonin implantation during the non-growing period of cashmere increases the cashmere yield of female Inner Mongolian cashmere goats by increasing fiber length and density

Spanish Journal of Agricultural Research ◽

10.5424/sjar/20181614-11053 ◽

2018 ◽

Vol 16 (1) ◽

pp. e06SC01 ◽

Cited By ~ 3

Author(s):

Ziyuan Wu ◽

Chunhui Duan ◽

Yan Li ◽

Tao Duan ◽

Fang Mo ◽

...

Keyword(s):

Body Weight ◽

Treatment Group ◽

Fiber Length ◽

Short Communication ◽

Fiber Diameter ◽

Contributing Factors ◽

Initial Body Weight ◽

Melatonin Treatment ◽

Growing Period ◽

Cashmere Goats

This study aimed to evaluate if melatonin implantation at the end of April and June was able to increase cashmere production in female Inner Mongolian cashmere goats and to search for contributing factors accounting for the melatonin increasing in cashmere production. One hundred and fifty female Inner Mongolian cashmere goats (initial body weight 37.2 ± 3.3 kg) were randomly assigned to either a control (n=75) or a treatment (n=75) group. Goats in the treatment group were implanted with melatonin (2 mg/kg of body weight) on April 30 and June 30, 2014 while goats in the control received no treatment. Melatonin implantation increased cashmere yield by 23.4% while increasing the length and density of the cashmere fiber by 19.8% and 11.4%, whereas it decreased cashmere fiber diameter by 4.4%. Melatonin treatment had no effect on doe growth, litter size or birth and weaning weights of kid. Melatonin implantation promoted cashmere yield by increasing fiber length and density without impacting the performance of goats and their offspring. Therefore, melatonin implantation during the cashmere non-growing period (late April and June) is an effective way to increase cashmere yield and improve cashmere characteristics of goats.

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EFFECT OF KATUK LEAVES MEAL (Sauropus Androgynus L. Merr) AND ZN BIOCOMPLEX SUPPLEMENTATION ON CONSUMPTION AND DIGESTIBILITY OF POSTWEANING MALE OF ETTAWA CROSSBRED

Journal of Tropical Animal Science and Technology ◽

10.32938/jtast.v3i1.874 ◽

2021 ◽

Vol 3 (1) ◽

pp. 1-9

Author(s):

Yakob Robert Noach ◽

Marthen Yunus

Keyword(s):

Body Weight ◽

Organic Matter ◽

Dry Matter ◽

Complex Variables ◽

Variance Analysis ◽

Initial Body Weight ◽

Leaf Meal ◽

Randomized Design ◽

Organic Matter Digestibility

The experiment goal was to determine the supplementation effect of katuk leaves meal and Zn bio complex on dry and organic matter consumption and digestibility of postweaning male of Ettawa Crossbred. The experiment used sixteen heads of the postweaning male of Ettawa Crossbred aged 4-5 months with an initial body weight of 9.01±1.85kg (CV 20.55%). Completely Block Randomized Design (CBRD) with 4 treatments and 4 replications were applied in this experiment. Those treatments were P0: Lamtoro + concentrate without katuk leaves meal and Zn biocomplex (control); P1: P0 + 5% katuk leaves meal (on the basis of forage dry matter) and Zn bio complex; P2: P0 + 10% katuk leaves meal (on the basis of forrage dry matter) and Zn bio complex; P3: P0 + 15% katuk leaves meal (on the basis of forage dry matter) and Zn bio complex. Variables measured were dry matter (DM) consumption, organic matter (OM) consumption, DM digestibility, and OM digestibility. Average of DM consumption were P0 (326.68 ±44.13g/h/d), P1 (351.68±63.47g/h/d), P2 (351.78±33.41g/h/d) and P3 (346.24±32.48g/h/d). Average of OM consumption were, P0 (300.38 ±41.14g/h/d), P1 (316.11±57.05g/h/d), P2 (315.54±30.83g/h/d) and P3 (309.21±29.00g/h/d). Average of DM digestibility, P0 (78.94 ±4.67%), P1 (78.77±9.54%), P2 (64.82±11.45%), P3 (75.38±14.56%). Average of OM digestibility, P0 (81.17±4.01%), P1 (80.77±8.69%), P2 (68.79±9.90%), and P3 (76.93±12.77%). The result of variance analysis showed that treatment has a significant effect (P<0.05) on dry and organic matter consumption but no significant (P>0.05) on dry and organic matter digestibility It can be concluded that supplementation of of katuk leaf meal (Sauropus androgynus L. Merr) at 5% up to 15% and Zn bio complex might increase dry and organic matter consumption of postweaning male of Ettawa crossbred.

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Breakfast consumption and weight-loss maintenance: results from the MedWeight study

British Journal Of Nutrition ◽

10.1017/s0007114516001550 ◽

2016 ◽

Vol 115 (12) ◽

pp. 2246-2251 ◽

Cited By ~ 12

Author(s):

Dora Brikou ◽

Dimitra Zannidi ◽

Eleni Karfopoulou ◽

Costas A. Anastasiou ◽

Mary Yannakoulia

Keyword(s):

Weight Loss ◽

Body Weight ◽

Dietary Intake ◽

Eating Behaviour ◽

Weight Loss Maintenance ◽

Precise Definition ◽

Confounding Factors ◽

Initial Body Weight ◽

Breakfast Consumption ◽

At Home

AbstractDaily breakfast consumption is a common eating behaviour among people who have maintained their weight loss after weight-loss management. However, there is not a precise definition for breakfast in the literature. The purpose of this study was to investigate potential associations between breakfast consumption (based on several definitions) and weight-loss maintenance, as well as to explore differences in breakfast quality between individuals who managed to maintain part of the weight loss and in those who regained weight loss. The study sample consisted of 354 participants of the MedWeight study (age: 32 (sd 10) years, 61 % women) who had lost ≥10 % of their initial body weight and either maintained the loss for ≥1 year (maintainers, n 257) or regained weight loss (regainers, n 97). Participants completed online questionnaires and reported their dietary intake through two telephone 24-h recalls. Breakfast consumption was evaluated using twelve different definitions. The analysis indicated that breakfast consumption was associated with weight-loss maintenance only in men, when using self-reported breakfast consumption or the following breakfast definitions: (1) the first eating episode consumed at home and (2) the first eating episode consumed at home excluding caffeinated drinks. This association remained statistically significant even after adjustment for potential confounding factors. Thus, breakfast, the first eating episode of the day, when consumed at home, may be protective against weight regaining.

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Factorial and discriminant analysis on non-carcass components of Berganês lambs from different sexual classes and crossbreeding

The Journal of Agricultural Science ◽

10.1017/s0021859621000563 ◽

2021 ◽

pp. 1-11

Author(s):

José Renaldo Vilar da Silva Filho ◽

João Bandeira de Moura Neto ◽

Lays Thayse Alves dos Santos ◽

Clebson Oliveira Ferreira ◽

Rafael Torres de Souza Rodrigues ◽

...

Keyword(s):

Body Weight ◽

Weight Gain ◽

Discriminant Analysis ◽

Multivariate Statistics ◽

Total Weight ◽

Initial Body Weight ◽

Total Weight Gain ◽

Santa Inês ◽

Experimental Trials ◽

By Products

Abstract The aim of this study was to evaluate the non-carcass components (NCC) of Berganês ecotype lambs of different sexual classes and genotypes using univariate and multivariate statistics, carrying out two experimental trials. In order to evaluate the effects of the sexual class, non-castrated males (BNC), castrated males (BC) and females (BF) of Berganês ecotype lambs were used, with mean initial body weight of 27 ± 3.1 kg. To evaluate crossbreeding, non-castrated male lambs of the genotypes Berganês (BG), Berganês × Santa Inês (BSI) and Berganês × Dorper (BD) were used, as well as the control Dorper × Santa Inês (DSI), all with mean initial body weight of 28 ± 3.8 kg. The weight and yield of the total by-products was higher for BNC. Regarding the genotype, BSI showed higher weight and yield of internal fat, but the weight and yield of the total by-products was higher for BG and BD. In factorial analysis (FA), the NCC, more correlated with empty body weight (EBW) and total weight gain (TWG), showed higher eigenvectors for factor 1. For factor 2, the weights and yields of internal fat and total viscera obtained higher eigenvectors. The discriminant analysis (DA) classified 100% of individuals in their respective sexes and genotypes. Therefore, the FA indicated that, among the NCC evaluated, the weights of liver, kidneys, GIT, skin and feets are determinant for obtaining EBW and TWG. The classification achieved by the DA indicates that the sexual classes and genotypes are heterogeneous.

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INFLUENCE OF Aspergillus oryzae FERMENTED SOYBEAN MEAL ON PLASMA CHOLESTEROL AND BILE ACID LEVELS IN HYBRID TILAPIA AND POMPANO FISH

10.18173/2354-1059.2020-0059 ◽

2020 ◽

Vol 65 (10) ◽

pp. 154-163

Author(s):

Hung Nguyen Phuc ◽

Anh Nguyen Phuong

Keyword(s):

Body Weight ◽

Bile Acid ◽

Aspergillus Oryzae ◽

Fish Species ◽

Soybean Meal ◽

Plasma Cholesterol ◽

Total Cholesterol Level ◽

Reduction Rate ◽

Total Bile Acid ◽

Initial Body Weight

Fermentation has been suggested as an economical and effective method to eliminate anti-nutritional factors and improve the nutritional value of Defatted soybean meal (SBM). The present study aimed to examine the effects of Aspergillus oryzae fermented SBM (FSBM) on plasma cholesterol and bile acid levels in hybrid tilapia and pompano. Two isonitrogenous and isoenergetic experimental diets for each fish species were formulated with SBM and FSBM as main ingredients. The diets were denoted as SBMD (SBM-based diet) and FSBMD (FSBM-based diet). Thirty juvenile hybrid tilapia (initial body weight 55 g) and eighteen juvenile pompanos (initial body weight 61 g) were allocated to each of the 4 concrete tanks (1500-L holding capacity) and each of the 4 circular polyvinyl chloride tanks (500-L holding capacity), respectively, resulting in two replicate tanks per dietary treatment for each fish species. For 4 weeks, the fish were handfed the experimental diets to apparent satiation twice daily. The results showed that feeding FSBMD tended to increase plasma total cholesterol level, gallbladdersomatic index, anterior intestinal total bile acid level, and posterior\anterior intestinal total bile acid reduction rate compared to SBMD in both hybrid tilapia and pompano. The differences in these parameters between FSBMD and SBMD dietary groups were significant in hybrid tilapia (P < 0.05), while no significant differences were found between pompano fed FSBMD and SBMD. These results indicated that fermentation of SBM with A. oryzae could effectively improve physiological conditions of hybrid tilapia fed soybean proteinbased diet and suggested that inclusion of A. oryzae FSBM might enhance growth and feed performances of the fish.

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Standardized ileal digestible amino acids and net energy contents in full fat and defatted black soldier fly larvae meals (Hermetia illucens) fed to growing pigs

Translational Animal Science ◽

10.1093/tas/txaa104 ◽

2020 ◽

Vol 4 (3) ◽

Author(s):

Michelina Crosbie ◽

Cuilan Zhu ◽

Anna K Shoveller ◽

Lee-Anne Huber

Keyword(s):

Amino Acids ◽

Body Weight ◽

Latin Square ◽

Growing Pigs ◽

Net Energy ◽

Initial Body Weight ◽

Black Soldier Fly ◽

Digestible Energy ◽

Black Soldier Fly Larvae ◽

Fly Larvae

Abstract Two experiments were conducted to determine standardized ileal digestibility (SID) of amino acids (AA; Exp. 1) and net energy (Exp. 2) in two black soldier fly larvae meal (BSFLM) samples [full fat (FF; 42.5% crude protein (CP), as-fed) and defatted (DF; 40.8% CP; as-fed)] for growing pigs. Two cornstarch-based diets were formulated with FF and DF BSFLM as the sole sources of AA. A nitrogen-free diet was also used, and the corn starch:sucrose:oil ratio was kept constant among diets to calculate digestible energy (DE) by difference method. In each experiment, pigs were fed 2.8 × estimated maintenance energy requirement. In Exp. 1, eight ileal-cannulated barrows (25.1 ± 0.41 kg initial body weight) were used in a replicated 2 × 2 Latin square design (n = 8). In each period, pigs were adapted to diets for 5 d followed by 2 d of continuous ileal digesta collection for 8 h. The SID of AA were calculated using basal endogenous losses for pigs fed a nitrogen-free diet. In Exp. 2, eight barrows [23.4 ± 0.54 kg initial body weight (BW)] were used in a partially replicated Latin square design (n = 8). In each period, pigs were adapted to diets for 7 d, followed by 5 d of total urine collection and fecal grab sampling. The SID of CP (80.6 ± 1.1%) and Lys (88.0 ± 1.4%) were not different between FF and DF BSFLM. The SID of Arg, Val, Ala, and Pro tended to be less, and the SID of Met tended to be greater for the FF versus the DF BSFLM (P = 0.034, 0.090, 0.053, 0.065, 0.074, respectively). Digestible energy (4,927 vs. 3,941 ± 75 kcal/kg), metabolizable energy (4,569 vs. 3,396 ± 102 kcal/kg), and predicted net energy (3,477 vs. 2,640 ± 30 kcal/kg, using equations from Noblet; 3,479 vs. 2,287 ± 28 kcal/kg, using equations from Blok, respectively) were greater for the FF versus the DF BSFLM (P < 0.05). The apparent total tract digestibility of neutral detergent fiber and acid detergent fiber were greater for the FF versus the DF BSFLM (P ≤ 0.05). Both FF and DF BSFLM had high SID for most AA; however, FF BSFLM was a better source of net energy for growing pigs. Therefore, both FF and DF BSFLM could be used as protein alternatives in growing pig diets.

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