Growth characteristics, reproductive performance, and evaluation of their associative relationships in Brangus cattle managed in a Chihuahuan Desert production system1

2010 ◽  
Vol 88 (5) ◽  
pp. 1891-1904 ◽  
Author(s):  
P. Luna-Nevarez ◽  
D. W. Bailey ◽  
C. C. Bailey ◽  
D. M. VanLeeuwen ◽  
R. M. Enns ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Chihuahuan Desert ◽  
Growth Characteristics ◽  
Performance And Evaluation

scholarly journals Terminal Crossbreeding of Murciano-Granadina Goats to Boer Bucks: Effects on Reproductive Performance of Goats and Growth of Kids in Artificial Rearing

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 986 ◽  
Author(s):  
Ion Pérez-Baena ◽  
Marta Jarque-Durán ◽  
Ernesto A. Gómez ◽  
José-Ramón Díaz ◽  
Cristòfol Peris
Keyword(s):  
Birth Weight ◽  
Pregnancy Rate ◽  
Reproductive Performance ◽  
Conversion Rate ◽  
Average Daily Gain ◽  
Milk Powder ◽  
Growth Characteristics ◽  
The Other ◽  
Artificial Rearing ◽  
Daily Gain

The aim of this work was to improve the growth characteristics of Murciano-Granadina (MG) kids through terminal crossbreeding of MG goats to Boer bucks. Four experiments were carried out, using a total of 354 MG goats, half of which were mated with MG bucks (n = 12) and the other half with Boer bucks (n = 12). The kids were raised in artificial rearing until slaughter weight (9 kg). The birth weight and average daily gain were recorded in crossed kids (n = 197 and 145, respectively) and purebred kids (n = 257 and 169, respectively). Crossed kids presented significant differences (p < 0.001) compared to MG purebred kids in birth weight (+ 24%), mortality in artificial rearing (−37%), average daily gain (+32%) and milk powder conversion rate (−16%). However, the reproductive performance rates of MG goats mated with Boer bucks were slightly worse (pregnancy rate: 78.5% vs. 86.6%, p < 0.05; kidding rate: 62.0% vs. 75.7%; p < 0.01; prolificacy: 1.9 vs. 2.1 kids/parturition), especially when the matings took place in non-breeding season (experiments conducted at latitude 38–39° N). It is concluded that the terminal crossbreeding of MG goats to Boer bucks (those not used to produce replacement kids) could be an interesting option for ethical goat production.

1123: Natural History and Growth Characteristics of Oncocytomas Under Active Surveillance

2006 ◽  
Vol 175 (4S) ◽  
pp. 361-361
Author(s):  
Paul L. Crispen ◽  
Rosalia Viterbo ◽  
Richard E. Greenberg ◽  
David Y.T. Chen ◽  
Robert G. Uzzo
Keyword(s):  
Natural History ◽  
Active Surveillance ◽  
Growth Characteristics

Review of Establishing Standards for Performance and Evaluation.

1989 ◽  
Vol 34 (7) ◽  
pp. 711-711
Author(s):  
No authorship indicated
Keyword(s):  
Performance And Evaluation

Comparison of growth characteristics and quality of Korean ginseng (Panax ginseng C.A. Meyer) using different shade materials

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
HH Kim ◽  
BJ Seong ◽  
KS Lee ◽  
SI Kim ◽  
JM Geun ◽  
...  
Keyword(s):  
Panax Ginseng ◽  
Growth Characteristics ◽  
Korean Ginseng

Cultivation environment under rain shelter and growth characteristics of 5-year old ginseng

2019 ◽  
Author(s):  
YN An ◽  
JA Han ◽  
ES Yi ◽  
GH Park ◽  
HJ An ◽  
...  
Keyword(s):  
Growth Characteristics ◽  
Cultivation Environment

РОДСТВЕННЫЕ ГРУППЫ РЕДКИХ ПОРОД ГУСЕЙ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Gene Pool

ЖАРКОВА И.П., ГРИШИНА Д. С. Федеральный научный центр «Всероссийский научно-исследовательский и технологический институт птицеводства» Российской академии наук Аннотация: Авторами изучены генетические параметры хозяйственно-полезных признаков гусей (сохранность, яйценоскость, масса яиц, оплодотворенность и выводимость яиц, вывод гусят) в зависимости от их происхождения. Новизна работы заключается в том, что впервые проведен анализ закономерностей проявления репродуктивных качеств у родственных групп гусей. При сравнительном изучении 21 породы гусей установлено, что группа пород гусей, родственных между собой по общему селекционному предку, а именно китайской серой породе (1-я родословная), имеет более высокие воспроизводительные способности по сравнению с другими породами и группами пород. Полученные данные будут применяться в дальнейшей работе с целью совершенствования приемов сохранения генофонда малочисленных пород гусей. Ключевые слова: ГЕНОФОНД ПОРОД ГУСЕЙ, РОДСТВЕННЫЕ ГРУППЫ, РЕПРОДУКТИВНЫЕ КАЧЕСТВА, GENE POOL OF GEESE BREEDS, BIOGENETICALLY RELATED GROUPS OF BREEDS, REPRODUCTIVE PERFORMANCE

ПРЕРЫВИСТОЕ ОСВЕЩЕНИЕ ПОВЫШАЕТ ЭФФЕКТИВНОСТЬ ИСКУССТВЕННОГО ОСЕМЕНЕНИЯ КУР В КЛЕТКАХ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Artificial Insemination ◽  
Egg Production ◽  
Laying Hens ◽  
Electric Energy ◽  
Productive Performance ◽  
Feed Conversion ◽  
Scientific Center ◽  
Academy Of Sciences ◽  
Egg Fertility

Intermittent Lighting Improves the Efficiency of Artificial Insemination in Cage Housed Laying Hens Kavtarashvili A.Sh., Kolokolnikova T.N. Federal Scientific Center “All-Russian Research and Technological Poultry Institute” of Russian Academy of Sciences Omsk Agrarian Scientific Center Summary: The effects of different lighting regimes on the oviposition schedule, productive performance, and reproductive efficiency in cage housed laying hens of layer parental flock (Hisex White-R) were studied; the reasonable regime of artificial insemination (AI) under intermittent lighting is proposed. It was found that intermittent lighting regime 1L:4D:4L:1D:4L:10D compared to the constant lighting significantly alters oviposition schedule: under this regime 82.3% of all daily eggs were laid until 9 am (vs. 66.6% in control). This regime and AI at 10 am improved the productive and reproductive performance compared to control (constant lighting 16L:8D and AI at 12 am): mortality by 1.9%, egg production per initial hen by 3.8%, egg weight by 1.1%, percentage of eggs suitable for incubation by 1.9%, egg fertility by 0.9%, hatchability by 2.3%, hatch of chicks by 2.9%, feed conversion ratio (kg of feed per 10 eggs) by 5.3%, the expenses of electric energy for lighting (per 1000 eggs suitable for incubation) by 54.5%. Key words: INTERMITTENT LIGHTING, CAGE HOUSED LAYERS, ARTIFICIAL INSEMINATION (AI), OVIPOSITION SCHEDULE, AI TIMING, PRODUCTIVE PERFORMANCE, REPRODUCTIVE PERFORMANCE

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