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| Registros recuperados: 79 | |
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| Fraire-Cordero,Silvia; Rodríguez,Paulino Pérez; Pérez-Hernández,Ponciano; Cortez-Romero,César; Gallegos-Sánchez,Jaime. |
| Abstract: The objective of this work was to evaluate the effect of recombinant bovine somatotropin (rBST) and of the metabolic restorative preparation Metabolase (MR) on the reestablishment of the post-partum ovarian activity of Pelibuey sheep. Ninety-four ewes, with their respective lambs, were randomly assigned to one of the following treatments: T1, continuous suckling (CS); T2, CS + MR; T3, CS + rBST; and T4, CS + MR + rBST. Ovulating percentages, weight changes in ewes and lambs, incidence of estrus, onset and return to estrus, calving, fecundity, and prolificacy were evaluated. The highest ovulation percentages were recorded for CS in T1 and T2, and the lowest ones for rBST in T3 and T4. The treatments had a significant effect on lamb weight. Ewes in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ovis aries; Anestrus; Body weight; Estrus induction; Growth hormone; Post-partum reproductive activity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201392 |
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| Santos,Marcos Paulo dos; Godoy,Marcelo Marcondes de; Sousa,Cleber Luiz de; Assis,Roberta de Moura; Sena,Cassius Vinicius Barbosa. |
| Abstract: The objective of this work was to evaluate the effect of the inclusion of protected fat in the concentrate on the productive and reproductive performances of Santa Inês ewes in feedlot, up to 60 days after parturition. Thirty-six pregnant Santa Inês ewes, with an average age of 24 months and initial weight of 46.54±7.87 kg, were used. A completely randomized experimental design was used, with three treatments: CS, concentrated supplement; G5, concentrated supplement with 5.5% protected fat (PF); and G10, concentrated supplement with 13.5% PF. The productive performance parameters were evaluated every two weeks. At 60 days after parturition, the chemical composition of milk and the reproductive parameters were determined. The inclusion of PF in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Ovine; Polyunsaturated fatty acids; Supplementation.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000700548 |
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| Feiden,Aldi; Signor,Altevir; Boscolo,Wilson Rogério; Reidel,Adilson; Coldebella,Anderson; Signor,Arcangelo Augusto; Klein,Sidnei. |
| The objective of this work was to evaluate the morphometric and allometric relations of Iguaçu surubim (Steindachneridion melanodermatum) cultivated in net cages. One hundred and twenty specimens were cultivated at a density of 50 fish per square meter in three 6 m³ net cages. Fish were fed three times a day with commercial feed. Thirty fish were evaluated at 60, 120, 180, and 360 days of cultivation as to the variables: total body, head, clean trunk, viscera, skin, and fin weight; total, standard, and head length; and head and body height. The Iguaçu surubim shows later development of the clean trunk and early development of the other body parts. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Steindachneridion melanodermatun; Body weight; Development; Processing; Weight class; Yield. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800055 |
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| Huang, Rui; Lopez, Rigoberto A.. |
| The rising obesity during the past three decades poses a severe public health challenge and spurred enormous research interests. This paper contributes to the growing literature on how obesity spreads by empirically investigating whether social norms affect soft drink consumption choices. Combining market level soft drink scanner data and survey data with consumer level characteristics, we employ reduced form regressions to test whether social norms of body weight affects per capita consumption of total or caloric soft drink consumption, on a market level. We also utilize a random-coefficient logit model to examine whether social norms of body weight affect consumer choices on a brand level. Our results from the market level analyses support that a heavier... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Social norm; Body weight; Food choices; Agribusiness; Agricultural and Food Policy; Health Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/49480 |
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| Moraes,VMB; Malheiros,RD; Furlan,RL; Bruno,LDG; Malheiros,EB; Macari,M. |
| The objective of the present study was to assess the development of broiler chicks during the first week post-hatching when reared at three different environmental temperatures. A total of 480 day-old chicks were placed in three environmentally controlled rooms (20, 25 and 35°C) from 1 to 7 days of age. Body weight gain, feed and water intake, as well as liver, gizzard, heart, yolk sac and bursa of Fabricius weights were measured daily. Tibia and femur bones were weighed and their length and width (medial diameter) were also obtained. The chicks reared at 20º C had lower weight gain and ingested less food than chicks reared at 25°C and less water than chicks kept at 35°C. Relative weights of the liver, heart, and gizzard were affected by environmental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Bone growth; Chicks; Environmental temperature; Viscera. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000100003 |
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| Zhao,XH; Li,MY; Xu,SS; Liu,GJ. |
| ABSTRACT Insulin-like growth factor binding protein-2 (IGFBP-2) regulates a broad spectrum of biological activities involved in growth, development, and differentiation. This study aimed at comparing polymorphisms in intron2 of the IGFBP-2 gene among four chicken breeds and at analyzing the associations between its genotypes and body weight in Jinghai Yellow chicken by using PCR-SSCP technique. For primer P2, three genotypes (AA, AB and BB) were observed in the four chicken breeds. Gene sequencing revealed one insertion/deletion (the inserted/deleted TC after position 552bp) in the intron 2 of IGFBP-2 gene. For primer P5, three genotypes were identified in Jinghai Yellow chickens, and named CC, CD and DD. Gene sequencing revealed two SNPs (C1107G, C1130T)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jinghai Yellow chicken; IGFBP-2 gene; PCR-SSCP; Polymorphism; Body weight. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400497 |
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| Segura-Correa,JC; Santos-Ricalde,RH; Palma-Ávila,I. |
| ABSTRACT The objective of this study was to select the best non-linear model that fits the growth curve of turkeys managed under the tropical conditions of Southern Mexico. Data from 481 Hybrid converter turkeys (236 females and 245 males) reared under commercial conditions typical of that region were used. Turkeys were given ad libitum access to feed and water. Body weight was weekly recorded from 1 day to 23 weeks of age. Five non-linear mathematical models (Brody, Gompertz, Logistic, von Bertalanffy and Richards) were chosen to describe the age-weight relationship. The Brody and Richards' models fail to converge. The best fitting model was chosen based on the average prediction error (APE); the multiple determination coefficient R2 and the Akaike... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bertalanffy; Gomperz; Logistic; Body weight. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100027 |
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| Faitarone,ABG; Garcia,EA; Pizzolante,CC; Molino,AB; Pelícia,K; Berto,DA. |
| The experiment was carried out in the experimental poultry house of the Research and Development Unit of Brotas of Agência Paulista de Tecnologia dos Agronegócios do Centro-Oeste, SP, Brazil. The objective of the study was to evaluate forced-molting methods and their effects on body weight, egg production, feed intake, and mortality, as well as bird performance during the second laying cycle. A total number of 400 65-week-old Japanese quails was distributed in a completely randomized experimental design into five treatments, with four replicates of 20 birds each. The following treatments were applied: T1= not submitted to forced molting, T2= 01 day of fasting + 13 days receiving 15g feed/bird/day (1F+R), T3= 02 days of fasting + 12 days receiving 15g... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Coturnix japonica; Egg production; Fasting. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000100002 |
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| Shaheen,MS; Mehmood,S; Mahmud,A; Riaz,A; Mehmood,A; Ahmad,S. |
| ABSTRACT Objectives of the study were to investigate influence of artificial insemination (AI) in caged and floored flock in comparison to natural mating (NM) on broiler breeders’ welfare, productive performance and economic appraisal. To execute this experiment, a total of 1440 pullets of Ross-308 Parent Stock along with 168 males were picked from a commercial flock and divided into three groups i.e., AIC=AI in cages, AIF=AI on floor and third was NM=NM on floor. Each group carried 480 females (HH) while 168 males were divided into 41, 48 and 58 for AIC, AIF and NM, respectively. During both phases all procedures and studied parameters were the same except the sperm dose rates which were changed during post peak. According to the results, significantly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Economical appraisal; Housing systems; Mating strategies; Serum chemistry. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000400311 |
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| Biesek,J; Kuźniacka,J. |
| ABSTRACT The aim of this study was to compare the final productivity parameters, carcass and meat quality in ducks fed with yellow lupin (Lupinus luteus) as a protein source instead of soybean meal. 200 Cherry Valley ducks were divided into two equal groups. Control (1) was fed with soybean meal, experimental (2) was fed with yellow lupin. Productivity parameters were calculated. After 8 weeks of rearing, 10 ducks from each group were slaughtered. The pH of breast muscles was measured 15 minutes and 24 hours post-mortem. Carcasses were dissected and each carcass part was weighed. After dissection, breast and leg muscles were analysed for selected parameters of meat quality (water holding capacity, and colour). Additionally, drip loss in breasts was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Duck; Body weight; Carcass; Colour; Quality; Water-holding capacity; Yellow lupin. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000200304 |
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| Cázares-Gallegos,R; Silva-Vázquez,R; Hernández-Martínez,CA; Gutiérrez-Soto,JG; Kawas-Garza,JR; Hume,ME; Méndez-Zamora,GM. |
| ABSTRACT The current study was conducted to evaluate the dietary supplementation of Mexican oregano essential oil (MOO; Lippiaberlandieri Schauer) on broiler performance, carcass variables, meat quality, and sensory evaluation. One-day-old mixed-sex broilers were distributed in the following treatment groups, according to MOO supplementation levels: 0 = control diet; 200 = diet + 2200 mg of MOO/kg; 400 = diet + 4200 mg of MOO/kg; 600 = diet + 6200 mg of MOO/kg; 800 = diet + 8200 mg of MOO/kg; 1000 = diet + 1000 mg of MOO/kg. MOO affected (p<0.05) body weight, feed and water intake, and feed conversion ratio. The 200 and 400 mg/kg formulations gave better results at 7, 14 and 28 d than the other diets. MOO at 1000 mg/kg increased (p<0.05) slaughter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Breast; Sensory; Texture. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100320 |
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| Baylan,M. |
| ABSTRACT This experiment was conducted to investigate the effects of different selection methods of parent lines on the body weight of Japanese quails. For this purpose, line M55 was subjected to individual selection for body weight at 5 weeks of age, while a reciprocal recurrent selection method was applied to lines R33 and S55. Selection lasted two generations. Body weight changes, age and weight at sexual maturity, egg weight, and egg production were investigated in the parent generations as well as in the selection lines. Body weight at 5 weeks of age of the parents of the M55, R33 and S55 lines were 299.0, 285.3, and 280.4 g in the first generation, and 314.8, 316.6, and 306.8±3.11 g in the second generation, respectively. The first generation of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Egg production; Egg weight; Japanese quail selection. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400623 |
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| Özlü,S; Shiranjang,R; Elibol,O; Brake,J. |
| ABSTRACT This study investigated the effects of broiler chick hatching time on the percentage of the yolk sac and subsequent broiler live performance. Broiler hatching eggs were obtained from a commercial flock at 55 wk of age and were stored for 2 d at 18°C and 75% relative humidity (RH) prior to incubation. Chicks were identified as hatching Early (471-477 h), Middle (480-486 h), and Late (494-510 h). All chicks were removed from the trays at 510 h of incubation. Body weight (BW) and yolk weight (YW) were determined at emergence from the shell (initial hatch time) and at placement on feed. Chicks were permanently identified by hatch time with neck tags, feather sexed, weighed, and introduced to feed and water in litter floor pens. Broiler BW and feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Feed consumption; Hatching time; Mortality; Yolk. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000200231 |
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| Bai,J; Dong,ZH; Lei,Y; Yang,YB; Jia,XP; Li,JY. |
| ABSTRACT This study investigated SNP mutation sites of Gonadotrophin releasing hormone (GnRH) gene in China yellow quail, Beijing white quail and Korean quail through PCR amplification and DNA sequencing technologies. Moreover, polymorphism of GnRH gene and its association with growth traits of quail were analyzed, aiming to get molecular markers associated to growth traits of quail, which could provide references for breeding of new quail species. According to research results, a total of 14 SNP mutation sites of GnRH were detected in China yellow quail, Beijing white quail and Korean quail, which were C71T, C108T, C168T, C178T, A184G, C206T, A209C, C215T, A252G, A279T, C281T, C293G, C339T and C458T. Except that only 2 genotypes were detected for A209C... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gonadotrophin releasing hormone (GnRH) gene; DNA sequencing; SNP; Polymorphism; Body weight. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2021000100312 |
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| Registros recuperados: 79 | |
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