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Journal Article 2019-07-23

Incidence of Maruca vitrata f. on cowpea in the sudano-sahelian zone of Niger

Autor: Zakari, O.A. Baoua, I. Amadou, L. Dannon, E. Tamo, M. Mahamane, S. Pittendrigh, B.R.

The incidence of the key insect pest of cowpea (Vigna unguiculata L. Walp), the legume pod borer Maruca vitrata F., was investigated with light trap in the Sudano-Sahelian zone of Niger in 2014 and 2015. The results revealed that the first larvae appeared in August (0.03 ± 0.03 to 2.48 ± 0.32 lar...

Enlace original: https://cgspace.cgiar.org/handle/10568/103386

Investigación en Agricultura

MARUCA VITRATA

COWPEAS

NIGER

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Zakari, O.A. , Baoua, I. , Amadou, L. , Dannon, E. , Tamo, M. , Mahamane, S. , Pittendrigh, B.R. , [Incidence of Maruca vitrata f. on cowpea in the sudano-sahelian zone of Niger] , Incidence of Maruca vitrata f. on cowpea in the sudano-sahelian zone of Niger

Journal Article 2014

A simple model for simulating heat induced sterility in rice as a function of flowering time and transpirational cooling

Autor: Oort, Pepijn A.J. van Saito, Kazuki Zwart, Sander J. Shrestha, S.

Rice spikelets become sterile when exposed to high temperatures during flowering. Recent experimental studies have shown that transpirational cooling and flowering time (within the day) are important factors determining sterility. Extrapolation of the results from these experimental studies to ot...

Enlace original: https://cgspace.cgiar.org/handle/10568/52152

Investigación en Agricultura

CLIMATE

AGRICULTURE

RICE

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Oort, Pepijn A.J. van , Saito, Kazuki , Zwart, Sander J. , Shrestha, S. , [A simple model for simulating heat induced sterility in rice as a function of flowering time and transpirational cooling] , A simple model for simulating heat induced sterility in rice as a function of flowering time and transpirational cooling

Journal Article

Indigenous cattle research - A review

Autor: Ward, H.K.

Reviews research related to the productivity of indigenous breeds of cattle in Zimbabwe. Discussions and data on comparative production studies and research related to components of production, particularly fertility, calving, lactation, weaning, calf growth, carcass characteristics, nutrition, t...

Enlace original: https://cgspace.cgiar.org/handle/10568/66745

Investigación en Agricultura

CATTLE

ANIMAL PRODUCTION

PRODUCTIVITY

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Ward, H.K. , [Indigenous cattle research - A review] , Indigenous cattle research - A review

Journal Article 1992

Reproductive performance of sheep and goats on backyard farms in southern Ghana

Autor: Awotwi, E.K. Fynn, K.E.

The reproductive performance of sheep and goats on backyard farms was studied in selected areas of southern Ghana. Out of 80 farms surveyed, 16 (20 percent) kept only goats while 38 (47.5 percent) kept only sheep; 26 (32.5 percent) had both species. Around 93 percent of the backyard farmers had 2...

Enlace original: https://cgspace.cgiar.org/handle/10568/66746

Investigación en Agricultura

SHEEP

GOATS

REPRODUCTION

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Awotwi, E.K. , Fynn, K.E. , [Reproductive performance of sheep and goats on backyard farms in southern Ghana] , Reproductive performance of sheep and goats on backyard farms in southern Ghana

Journal Article 2015-02

Modeling nitrous oxide emissions from organic and conventional cereal-based cropping systems under different management, soil and climate factors

Autor: Doltra, Jordi Olesen, J.E. Báezc, Dolores Louroc, Aránzazu Chirinda, Ngonidzashe

Enlace original: https://cgspace.cgiar.org/handle/10568/56906

Investigación en Agricultura

GREENHOUSE GASES

NITROUS OXIDE

CROP MANAGEMENT

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Doltra, Jordi , Olesen, J.E. , Báezc, Dolores , Louroc, Aránzazu , Chirinda, Ngonidzashe , [Modeling nitrous oxide emissions from organic and conventional cereal-based cropping systems under different management, soil and climate factors] , Modeling nitrous oxide emissions from organic and conventional cereal-based cropping systems under different management, soil and climate factors

Journal Article 1985

Small ruminants in the Nigerian sub-humid zone

Autor: Bayer, W.

This paper discusses the single-round survey of smallholder goat and sheep production which is carried out in the Nigerian sub-humid-zone villages. In order to determine and analyse the importance of the designing and executing surveys as well as to give emphasis upon the flock breed structure ex...

Enlace original: https://cgspace.cgiar.org/handle/10568/29607

Investigación en Agricultura

GOATS

SHEEP

ANIMAL PRODUCTION

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Bayer, W. , [Small ruminants in the Nigerian sub-humid zone] , Small ruminants in the Nigerian sub-humid zone

Journal Article 1987

Reproductive performance of two types of Sudan Desert sheep

Autor: El-Karim, A.I.A. Owen, J.B.

Data were available to study reproductive aspects on a total of 1860 matings over three years for the Shugor and Watish ecotypes of Sudan Desert sheep kept under hot semi-arid conditions at the El Huda sheep research station in the Sudan. Overall adjusted mean gestation length was 150 days with n...

Enlace original: https://cgspace.cgiar.org/handle/10568/66975

Investigación en Agricultura

SHEEP

REPRODUCTION

MULTIPLE BIRTHS

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El-Karim, A.I.A. , Owen, J.B. , [Reproductive performance of two types of Sudan Desert sheep] , Reproductive performance of two types of Sudan Desert sheep

Journal Article 1992

Effects of dry season nutritional supplementation on growth, onset of puberty and subsequent fertility in Boran and Boran X Friesian heifers in Ethiopia

Autor: Tegegne, Azage Entwistle, K.W. Mukasa-Mugerwa, E.

Presents results of a trial undertaken in Ethiopia to determine the effect of dry season supplementary feeding on heifers' growth rate & fertility at puberty, hence at 8 months of age, 43 Boran and 46 Boran X Friesian crossbred heifers were randomly divided to either receive a supplementary feed ...

Enlace original: https://cgspace.cgiar.org/handle/10568/29650

Investigación en Agricultura

FRIESIAN CATTLE

HEIFERS

SUPPLEMENTARY FEEDING

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Tegegne, Azage , Entwistle, K.W. , Mukasa-Mugerwa, E. , [Effects of dry season nutritional supplementation on growth, onset of puberty and subsequent fertility in Boran and Boran X Friesian heifers in Ethiopia] , Effects of dry season nutritional supplementation on growth, onset of puberty and subsequent fertility in Boran and Boran X Friesian heifers in Ethiopia

Journal Article 1981

A note on the relationship between duration of mating season and flock fertility in some Ethiopian breeds of sheep and goats

Autor: Galal, E.S.E. Awgichew, K.

Analyzes mating/parturition records on Ethiopian sheep and goat breeds, to study the effect of the duration of mating season on flock fertility, with emphasis on data related to cumulative percentage of females conceiving at different intervals of the mating season.

Enlace original: https://cgspace.cgiar.org/handle/10568/66752

Investigación en Agricultura

SHEEP

GOATS

BREEDS

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Galal, E.S.E. , Awgichew, K. , [A note on the relationship between duration of mating season and flock fertility in some Ethiopian breeds of sheep and goats] , A note on the relationship between duration of mating season and flock fertility in some Ethiopian breeds of sheep and goats