scholarly journals Ají (capsicum annuum l.var. cayenne) como aditivo alimentario para conejos

2021 ◽  
Author(s):  
Gastón Adolfo Castaño Jiménez
Keyword(s):  
Digestive System ◽  
Live Weight ◽  
System Size ◽  
Control Treatment ◽  
Feed Conversion ◽  
System P ◽  
Randomized Experimental Design ◽  
White Breed ◽  
Chili Powder ◽  
Feed Conversion Rate

Chili is used as a substitute for growth promoting antibiotics in animal production. The objective of this work was to evaluate the effect of supplementation with Chili Powder (Capsicum annum L. var. Cayenne) on fattening rabbits consuming commercial concentrate during the fattening phase on productive performance, carcass, digestive system size and digestibility of the diet. We used 10 rabbits of the New Zealand White breed with 30 d of age that were randomly distributed in the treatments according to a completely Randomized Experimental Design. The treatments consisted of two diets: a control in which concentrate was supplied without Chili and another in which the concentrate of the control treatment was mixed with Chili Powder (20 g kg-1 of concentrate). Feed Chili Powder did not affect live weight (P>0.05), feed intake (P=0.6076), feed conversion rate (P=0.4849), diet digestibility (P>0.05), weight carcass (P=0.5396), weight of different portions of the digestive system (P>0.05), ...

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. 

The use of moist barley in diets for growing pigs

1970 ◽  
Vol 12 (4) ◽  
pp. 561-568 ◽  
Author(s):  
R. M. Livingstone ◽  
D. M. S. Livingston
Keyword(s):  
Dry Matter ◽  
Live Weight ◽  
Matter Content ◽  
Growing Pigs ◽  
Dry Matter Content ◽  
Feed Conversion ◽  
High Moisture ◽  
Large White ◽  
Large White Breed ◽  
White Breed

SUMMARYA total of 156 pigs of the Large White breed were used in a series of four experiments to test the suitability of barley which had been stored with a high moisture content as an ingredient in the diets of growing pigs. Barleys with mean moisture contents of 26·3%, 28·1% and 21·2% and a range from 19·6% to 30·5%, from three successive harvests were used.In all the trials there was evidence that the use of moist barley in diets for growing pigs had an adverse effect on live-weight gain and feed conversion ratio, the effect being independent of whether feed intakes were equated on the basis of the dry-matter content of the diets. In one of the experiments performance was depressed to the extent of causing changes in carcass characteristics. The performance of pigs given rolled barley was similar to that of others given ground barley.

scholarly journals FEEDLOT PERFORMANCE, CARCASS COMPOSITION AND EFFICIENCY OF MUSCLE GAIN IN BULLS AND STEERS OF DIFFERENT MATURE SIZE SLAUGHTERED AT SIMILAR LEVELS OF FATNESS

1984 ◽  
Vol 64 (3) ◽  
pp. 621-630 ◽  
Author(s):  
S. D. M. JONES ◽  
T. D. BURGESS ◽  
J. W. WILTON ◽  
C. H. WATSON
Keyword(s):  
Conversion Rate ◽  
Subcutaneous Fat ◽  
Live Weight ◽  
High Energy ◽  
Carcass Composition ◽  
Small Animals ◽  
Feed Conversion ◽  
Feedlot Performance ◽  
Feed Conversion Rate ◽  
Mature Size

Feedlot performance, carcass composition and efficiency of muscle gain were compared in 33 young beef bulls and 33 beef steers of different mature body size (35 small or mainly British breed crosses; 31 large or Continental crosses). All cattle were fed a high-energy diet based on corn silage and high-moisture corn from weaning to slaughter. Slaughter was carried out once 6 mm of fat was attained over the 11/12th ribs determined ultrasonically. Large crossbred animals had higher average daily gains, greater slaughter weights and spent longer time on feed than small crossbred animals and bulls. Similar results were found for all bulls compared to all steers. Feed conversion rate expressed on a live weight basis was superior for small crossbreds compared to large crossbreds, but there were no corresponding differences between bulls and steers. At the same proportion of dissected carcass subcutaneous fat, carcasses from large crossbreds and all bulls had greater proportions of muscle, less bone and similar proportions of total fat than small crossbreds and all steers. There were generally no differences for gender and size in the distribution of muscle within each of the wholesale cuts except in the case of the chuck, where bull carcasses had a greater proportion of muscle compared to those from steers. Bone distribution, however, did vary significantly across several wholesale cuts with carcasses from large animals and bulls having lower proportions of bone than those from small animals and steers. Feed conversion rate (g muscle/kg DM) was superior for bulls compared to steers (63 and 56 g muscle/kg DM, respectively), but similar for large and small animals (60 and 59 g muscle/kg DM, respectively). The present data suggest that the evaluation of beef cattle for feed efficiency on a liveweight and muscle basis may yield different conclusions. There were no significant size × castration interactions for any of the growth, efficiency and carcass variables examined. Key words: Beef, mature size, castration, carcass composition, efficiency

Growth performance, carcass composition, leg bones, and digestive system characteristics in Pekin duck broilers fed a diet diluted with whole wheat grain

2019 ◽  
Vol 99 (4) ◽  
pp. 781-791
Author(s):  
Dariusz Kokoszyński ◽  
Mohamed Saleh ◽  
Zenon Bernacki ◽  
Tomasz Topoliński ◽  
Marek Andryszczyk ◽  
...  
Keyword(s):  
Feed Intake ◽  
Digestive System ◽  
Live Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Pekin Duck ◽  
Wheat Grain ◽  
Feed Conversion ◽  
Commercial Diet ◽  
Whole Wheat

A total of 270 Pekin ducks were reared for 49 d to determine the effect of feeding a diluted complete commercial wheat grain diet on live weight, feed intake and conversion, carcass, leg bone, and digestive system traits. Different feeding regimes had a significant effect on the body weight of the ducks aged 35 d and the feed conversion ratio in the period between days 22 and 35 of rearing. Dilution of a complete commercial diet with whole wheat grain had no significant influence on the final live weight (day 49), feed intake, and feed conversion ratio during the entire rearing period. Ducks fed a diet with whole wheat grain had a significantly higher dressing percentage after higher percentage of pectoral muscles, skin with subcutaneous fat, abdominal fat, as well as a significantly lower percentage of carcass remainders at the age of 49 d. Dilution of a complete commercial diet with whole wheat grain had no impact on the length of the respective intestinal sections nor on the weight and percentage share of gizzard, liver, heart, and spleen. However, it significantly lowered the fracture strength of the tibiotarsus, and decreased some dimensions of the femur and tibiotarsus.

scholarly journals Effect of Functional Oils or Probiotics on Performance and Microbiota Profile of Newly Weaned Piglets

2021 ◽  
Author(s):  
Alexandre Maciel Vieira ◽  
Amanda Pires Sessin ◽  
Tatiany Aparecida Teixeira Soratto ◽  
Paula Gabriela Silva Pires ◽  
Kátia Maria Cardinal ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Live Weight ◽  
Illumina Miseq ◽  
Daily Weight Gain ◽  
Control Treatment ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Weaned Piglets ◽  
Fresh Feces ◽  
Functional Oils

Abstract The study aimed to evaluate a commercial blend of functional oils based on liquid from the cashew nutshell and castor oil as a growth promoter in newly weaned piglets. A total of 225 piglets, castrated males and females with 28 days of age were randomly distributed in pens with 15 animals composing three treatments and five repetitions. The treatments were: control (without the inclusion of additive), probiotics, or functional oils. The performance was evaluated. At 50 days of age, a pool of fresh feces from 3 animals/repetition was collected to perform the sequencing of microbiota using the Illumina MiSeq platform. Supplementation with functional oils improved the piglets' daily weight gain and feed conversion ratio (P < 0.05) in the first weeks of the experiment, which resulted in higher final live weight (P < 0.05) in the phase when compared to the control treatment. The animals that received probiotics showed intermediate performance. Both additives were effective in modulating groups central to intestinal health, such as Ruminococcaceae and Lachnospiraceae. The functional oils were more effective in reducing pathogenic bacteria, such as Campylobacter and Escherichia coli. In conclusion, the use of functional oils optimized performance and effectively modulated the microbiota of newly weaned piglets.

scholarly journals Improvement in broiler performance by feeding a nutrient-dense diet after a mild feed restriction

2020 ◽  
Vol 34 (3) ◽  
pp. 189-199
Author(s):  
Mohammad Hadaeghi ◽  
Carmen Avilés-Ramírez ◽  
Alireza Seidavi ◽  
Leila Asadpour ◽  
Nieves Núñez-Sánchez ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Body Weight Gain ◽  
Control Treatment ◽  
Nutrient Restriction ◽  
Feed Restriction ◽  
Standard Diet ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Nutrient Density ◽  
Feed Conversion Rate

Background: The use of early nutrient-restriction programs in broilers can prevent complications such as increased body fat deposition and its consequences. However, feed restriction not always gives the expected results. Objective: To assess the effect of two levels of feed restriction followed by a re-alimentation period with five increasing nutrient levels on growth performance and immune response of broiler chickens. Methods: A total of 330 animals were used. The treatments were: 25 (T25) and 35% (T35) quantitative feed restriction during the starting period, and 0, 2.5, 5, 7.5, 10, and 15% increased energy and protein contents during the growing and finishing periods. Results: For all the T25 treatments, except for T25-0, feed intake (FI) and body weight gain (BWG) were higher, and feed conversion rate (FCR) was lower (p<0.05) compared to the control treatment. In that group, the response of FI and BWG to the increased nutrient density was mostly quadratic (p<0.001), whereas that of FCR was linear (p<0.001). The FI and BWG results were less homogeneous in the T35 treatments, but FCR was lower compared to the control treatment (p<0.05) in all of them. The FCR showed no differences (p>0.05) between treatments during the finishing period. Conclusion: Feeding a nutrient-dense diet after a period of mild feed restriction gives the best results, while increasing nutrient density after a more severe feed restriction does not improve productive results compared to a standard diet. Carcass traits and immune function were not affected by restriction level or nutrient density.

scholarly journals Effect of functional oils or probiotics on performance and microbiota profile of newly weaned piglets

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alexandre Maciel Vieira ◽  
Amanda Pires Sessin ◽  
Tatiany Aparecida Teixeira Soratto ◽  
Paula Gabriela da Silva Pires ◽  
Kátia Maria Cardinal ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Live Weight ◽  
Illumina Miseq ◽  
Daily Weight Gain ◽  
Control Treatment ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Weaned Piglets ◽  
Fresh Feces ◽  
Functional Oils

AbstractThe study aimed to evaluate a commercial blend of functional oils based on liquid from the cashew nutshell and castor oil as a growth promoter in newly weaned piglets. A total of 225 piglets, castrated males and females with 28 days of age were randomly distributed in pens with 15 animals composing three treatments and five repetitions. The treatments were: control (without the inclusion of additives), probiotics, or functional oils. The performance was evaluated. At 50 days of age, a pool of fresh feces from 3 animals/repetition was collected to perform the sequencing of microbiota using the Illumina MiSeq platform. Supplementation with functional oils improved the piglets' daily weight gain and feed conversion ratio (P < 0.05) in the first weeks of the experiment, which resulted in higher final live weight (P < 0.05) in the phase when compared to the control treatment (24.34 kg and 21.55 kg, respectively). The animals that received probiotics showed an intermediate performance (23.66 kg final live weight) at the end of the 38 experimental days. Both additives were effective in increasing groups essential for intestinal health, such as Ruminococcaceae and Lachnospiraceae. The functional oils were more effective in reducing pathogenic bacteria, such as Campylobacter and Escherichia coli. In conclusion, the use of functional oils optimized performance and effectively modulated the microbiota of newly weaned piglets.

scholarly journals Performance of cobia grown in brackish water and fed with different feeding rates

2019 ◽  
Vol 54 ◽  
Author(s):  
Gitonilson Antonio Moreira Tosta ◽  
Ricardo Castelo Branco Albinati ◽  
Gleidson Giordano Pinto de Carvalho ◽  
Jaciane Vergne de Carvalho ◽  
José Jerônimo de Souza Filho ◽  
...  
Keyword(s):  
Feeding Rate ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Hepatosomatic Index ◽  
Productive Performance ◽  
Feeding Rates ◽  
Feed Conversion ◽  
Brackish Waters ◽  
Feed Conversion Rate ◽  
Efficiency Rate

Abstract: The objective of this work was to evaluate different feeding rates on the productive performance of cobia (Rachycentron canadum) grown in brackish waters. For the experiment, 1,600 juveniles were distributed in 16 enclosures installed in an estuarine pond. Four different feeding rates were evaluated: 1, 3, 5, and 7% live weight (LW) per day. The following performance parameters were assessed: survival, final biomass, specific growth rate, daily weight gain, apparent feed conversion, protein efficiency rate, lipid efficiency rate, and hepatosomatic index. Survival was greater than 80% at all feeding rates. The most efficient feed conversion rate was obtained with the feeding rate of 5% LW per day, which also resulted in better values for the hepatosomatic index. The rate of 5% LW per day provides a better productive performance for cobia in brackish waters.

EFFICACY OF SALICYLIC AND ASCORBIC ACIDS TO REDUCE THE EFFECT OF TRANSPORT STRESS ON LIVE WEIGHT, SOME BLOOD CHARACTERISTICS AND INTESTINAL VILLI OF BROILER CHICKENS

2020 ◽  
Vol 51 (4) ◽  
pp. 1074-1081
Author(s):  
Al obaydy & et al.
Keyword(s):  
Ascorbic Acid ◽  
Drinking Water ◽  
Transport Process ◽  
Live Weight ◽  
Cholesterol Concentration ◽  
Control Treatment ◽  
Intestinal Villi ◽  
Slaughter House ◽  
Transport Stress ◽  
Financial Losses

This experiment was conducted and aimed to reducing mortality and losing the weight of birds transported to the slaughter house through reducing or Transport stress removal and thus to reduce financial losses. 150 birds used almost equal weights that were divided into three treatment groups and by five replicates for each treatment is control treatment (T1) without giving anything and treatment with salicylic acid concentration 1 g / liter of drinking water (T2) and treatment with ascorbic acid (T3) concentration 0.5 g / Liter of drinking water provided 24 hours before its transport. The transport process resulted in a highly significant decrease (P ≤ 0.01) in body weight in treatment T1 as it reached 4.66%, while it reached 1.68 and 1.09% in treatment T2 and T3, respectively. The transport process led to an increase in body temperature, H / L ratio, the concentration of glucose, aspartate transaminase (AST) and alanine transaminase (ALT) in the blood serum, as the transport process led to a very significant decrease (P ≤ 0.01) in the cholesterol concentration, Uric acid, intestinal villi length and crypts depth. T2 and T3 treatments showed their ability to reduce transport stress, especially T3, where they outperformed T1 in most traits. It is concluded from the study that adding ascorbic acid by 0.5 g / L drinking water 24 hours before transporting the chicks to the slaughter house reduces the transport stress and lessen financial losses, so it is recommended to use it.

Indexes of reproductive ability and their repeatability in sows of different genotypes, taking into account the polymorphism g.1426g> a of the Mc4r gene

2020 ◽  
pp. 49-62 ◽  
Author(s):  
Viktor Khalak ◽  
Vasyl Voloshchuk ◽  
Konstiantyn Pochernyaev ◽  
Serhii Smyslov ◽  
Maria Ilchenko
Keyword(s):  
Receptor Gene ◽  
Live Weight ◽  
Multiple Births ◽  
Large White ◽  
Mc4r Gene ◽  
Litter Weight ◽  
Reproductive Ability ◽  
Large White Breed ◽  
White Breed ◽  
Consolidation Coefficient

The results of studies of the reproductive ability of sows of different genotypes are given taking into account the polymorphism g.1426G> A of the MC4R gene, the factor of repeatability of characters is determined, and the economic efficiency of the research results is calculated. The experimental part of the research was carried out in the conditions of the «Druzhba-Kaznacheevka» LTD in Dnipropetrovsk region. The objects of research were sows of the Large White breed. It was determined that sows of the main herd, according to signs of reproductive ability, belong to class I and class elite. The experiment showed that sows of genotype AG exceeded their peers of others (GG and AA) in terms of “born piglets total, heads” by 1.6 and 0.7 heads, “Live piglets born (multiple births), heads - by 1 6 and 0.9 heads, “the mass of the litter at the time of birth, kg” - by 2.7 - 1.3 kg., “the mass of the litter at the time of weaning at the age of 28-35 days, kg” - by 5, 1 - 3.9 kg. The difference between animals of the indicated genotypes is: for large-foetus - 0.06-0.01 kg, the index "evenness of the sow’s litter in live weight of piglets at birth, points" - 1.05-1.84 points, index of N. D. Berezovsky - 3.75 -2.36 points. The index of the safety of piglets before weaning ranged from 84.4 to 93.0 %. It was proved that the minimum value of the index “evenness of the sow’s littar in live weight of piglets at the time of birth, points (7.76 ± 1,082 points) are characterized by sows of genotype AA, in which the rate of multiple pregnancy ranged from 8 to 14 pigs, and the value of the sign“ large-foetus, kg "equaled 1.37 kg. The repeatability coefficient for sows of the main herd and sows of the Large White breed of different genotypes for the melanocortin 4 (MC4R) receptor gene ranges from -0.916 ± 0.1418 (І-IV farrow, genotype - GG, sign - “piglet safety before weaning, %) to 0.978 ± 0.0738 (I-V farrow, genotype - GG, sign - “large foetus”, kg ”). The maximum value of the phenotypic consolidation coefficient was found in sows of genotype AA according to the following quantitative characteristics: “live piglets (multiple births), heads.”, “litter weight at the time of birth, kg”, “litter weight at weaning age of 28-35 days, kg "," the safety of piglets before weaning ,% ". The sows of the genotype GG belong to the unconsolidated group according to the signs of reproductive qualities. The use of sows of the genotype for the melanocortin 4 (MC4R) AG receptor gene provides additional products at the level of 5.15 %, and its cost is 165.41 UAH /head. Keywords: sow, breed, reproductive ability, MC4R gene, genotypic consolidation coefficient, variability, correlation, repeatability.

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